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Yamaura K, Fujibayashi I, Kurosawa T, Mifune Y, Inui A, Ozaki T, Mitani M. Timing of retears after arthroscopic rotator cuff repair and associated factors: a retrospective analysis. J Shoulder Elbow Surg 2023; 32:1929-1936. [PMID: 36842463 DOI: 10.1016/j.jse.2023.01.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 01/04/2023] [Accepted: 01/22/2023] [Indexed: 02/28/2023]
Abstract
BACKGROUND Retear after arthroscopic rotator cuff repair (ARCR) remains a complication of important concern. Few reports have evaluated retear timing and its associated patient characteristics in large cohorts. This study aimed to investigate retear timing and patient characteristics and factors associated with this parameter. METHODS Of the 638 consecutive shoulders that underwent ARCR from August 2009 to November 2019, shoulders with retear complication within 1 year of surgery were included. Retears were defined as type IV or V of the Sugaya's classification, and magnetic resonance imaging was performed at 6 weeks, 3 months, 6 months, and 1 year after surgery. The distribution of patients with retears at the timing of retears was investigated. In addition, patients with retears were classified into the following two groups: early group with retears occurring at 6 weeks and 3 months postoperatively or late group with retears occurring between 6 months and 1 year postoperatively. Associated factors such as sex, age, tear size, pre and postoperative range of motion, surgical technique, and clinical outcome between the two groups were investigated. RESULTS The 41 shoulders with retears were divided into four groups: 1) within 6 weeks after surgery (n = 9, 22.0%), 2) 6 weeks-to 3 months after surgery (n = 19, 46.3%), 3) 3-6 months after surgery (n = 11, 26.8%), and 4) 6 months-1 year after surgery (n = 2, 4.9%). In addition, there were significantly larger retear sizes in the Sugaya's classification in the early group compared to the late group (P = .013), while there were significantly more males in the late group compared to the early group (P = .030). CONCLUSION The highest retear rate after ARCR was observed from 6 weeks to 3 months after surgery, with equivalent rates within 6 weeks and from 3 months to 6 months after surgery.
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Affiliation(s)
- Kohei Yamaura
- Department of Orthopaedic Surgery, Himeji St. Mary's Hospital, Himeji, Japan; Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Isao Fujibayashi
- Department of Orthopaedic Surgery, Himeji St. Mary's Hospital, Himeji, Japan.
| | - Takashi Kurosawa
- Department of Orthopaedic Surgery, Himeji St. Mary's Hospital, Himeji, Japan
| | - Yutaka Mifune
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Atsuyuki Inui
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takuma Ozaki
- Department of Orthopaedic Surgery, Himeji St. Mary's Hospital, Himeji, Japan
| | - Makoto Mitani
- Department of Orthopaedic Surgery, Himeji St. Mary's Hospital, Himeji, Japan
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Higashi T, Mitani M, Fujibayashi I, Ohara A, Kusunose M, Kurosawa T, Ozaki T. Metadiaphyseal proximal radial fracture around the bicipital tuberosity fixed using a volar distal ulna plate via the volar Henry approach: a case report. JSES Int 2023; 7:699-702. [PMID: 37426917 PMCID: PMC10328767 DOI: 10.1016/j.jseint.2023.03.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/11/2023] Open
Affiliation(s)
- Takanobu Higashi
- Corresponding author: Takanobu Higashi, MD, Department of Orthopedic Surgery, Himeji St Mary’s Hospital, 650 Nibuno, Himeji-shi, Hyogo 670-0801, Japan.
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Furukawa T, Kurosawa T, Mifune Y, Inui A, Nishimoto H, Ueda Y, Kataoka T, Yamaura K, Mukohara S, Yoshikawa T, Shinohara I, Kato T, Tanaka S, Kusunose M, Hoshino Y, Matsushita T, Kuroda R. Elicitation of Inhibitory Effects for AGE-Induced Oxidative Stress in Rotator Cuff-Derived Cells by Apocynin. Curr Issues Mol Biol 2023; 45:3434-3445. [PMID: 37185749 PMCID: PMC10137139 DOI: 10.3390/cimb45040225] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 04/05/2023] [Accepted: 04/10/2023] [Indexed: 05/17/2023] Open
Abstract
Advanced glycation end-products (AGEs) play a critical supportive role during musculoskeletal disorders via glycosylation and oxidative stress. Though apocynin, identified as a potent and selective inhibitor of NADPH oxidase, has been reported to be involved in pathogen-induced reactive oxygen species (ROS), its role in age-related rotator cuff degeneration has not been well clarified. Therefore, this study aims to evaluate the in vitro effects of apocynin on human rotator cuff-derived cells. Twelve patients with rotator cuff tears (RCTs) participated in the study. Supraspinatus tendons from patients with RCTs were collected and cultured. After the preparation of RC-derived cells, they were divided into four groups (control group, control + apocynin group, AGEs group, AGEs + apocynin group), and gene marker expression, cell viability, and intracellular ROS production were evaluated. The gene expression of NOX, IL-6, and the receptor for AGEs (RAGE) was significantly decreased by apocynin. We also examined the effect of apocynin in vitro. The results showed that ROS induction and increasing apoptotic cells after treatment of AGEs were significantly decreased, and cell viability increased considerably. These results suggest that apocynin can effectively reduce AGE-induced oxidative stress by inhibiting NOX activation. Thus, apocynin is a potential prodrug in preventing degenerative changes of the rotor cuff.
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Affiliation(s)
- Takahiro Furukawa
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-Cho, Chuo-ku, Hyogo, Kobe 650-0017, Japan
| | - Takashi Kurosawa
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-Cho, Chuo-ku, Hyogo, Kobe 650-0017, Japan
| | - Yutaka Mifune
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-Cho, Chuo-ku, Hyogo, Kobe 650-0017, Japan
| | - Atsuyuki Inui
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-Cho, Chuo-ku, Hyogo, Kobe 650-0017, Japan
| | - Hanako Nishimoto
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-Cho, Chuo-ku, Hyogo, Kobe 650-0017, Japan
| | - Yasuhiro Ueda
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-Cho, Chuo-ku, Hyogo, Kobe 650-0017, Japan
| | - Takeshi Kataoka
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-Cho, Chuo-ku, Hyogo, Kobe 650-0017, Japan
| | - Kohei Yamaura
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-Cho, Chuo-ku, Hyogo, Kobe 650-0017, Japan
| | - Shintaro Mukohara
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-Cho, Chuo-ku, Hyogo, Kobe 650-0017, Japan
| | - Tomoya Yoshikawa
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-Cho, Chuo-ku, Hyogo, Kobe 650-0017, Japan
| | - Issei Shinohara
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-Cho, Chuo-ku, Hyogo, Kobe 650-0017, Japan
| | - Tatsuo Kato
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-Cho, Chuo-ku, Hyogo, Kobe 650-0017, Japan
| | - Shuya Tanaka
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-Cho, Chuo-ku, Hyogo, Kobe 650-0017, Japan
| | - Masaya Kusunose
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-Cho, Chuo-ku, Hyogo, Kobe 650-0017, Japan
| | - Yuichi Hoshino
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-Cho, Chuo-ku, Hyogo, Kobe 650-0017, Japan
| | - Takehiko Matsushita
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-Cho, Chuo-ku, Hyogo, Kobe 650-0017, Japan
| | - Ryosuke Kuroda
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-Cho, Chuo-ku, Hyogo, Kobe 650-0017, Japan
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Matsunami Y, Itoi T, Tsuchiya T, Ishii K, Tanaka R, Tonozuka R, Mukai S, Nagai K, Yamamoto K, Asai Y, Kurosawa T, Kojima H, Minami H, Homma T, Joyama E, Sofuni A. Objective evaluation of the resistance forces of 22-gauge EUS-FNA and fine-needle biopsy needles. Endosc Ultrasound 2023; 12:251-258. [PMID: 37148137 PMCID: PMC10237597 DOI: 10.4103/eus-d-22-00059] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 11/06/2022] [Indexed: 05/07/2023] Open
Abstract
Background and Objectives EUS-guided tissue acquisition is routinely performed for the diagnosis of gastrointestinal tract and adjacent organ lesions. Recently, various types of needles have been developed. However, how the shape of the needle tip and echoendoscope tip angle affect puncturability, has not been clarified. The aim of this experimental study was to compare the puncturability of several 22-gauge EUS-FNA and EUS-guided fine-needle biopsy (EUS-FNB) needles, and to evaluate the effects of the needle tip shape and echoendoscope tip angle on tissue puncturability. Materials and Methods The following six major FNA and FNB needles were evaluated: SonoTip® ProControl, EZ Shot 3 Plus, Expect™ Standard Handle, SonoTip® TopGain, Acquire™, and SharkCore™. The mean maximum resistance force against needle advancement was evaluated and compared under several conditions using an echoendoscope. Results The mean maximum resistance force of the needle alone was higher for the FNB needles than for the FNA needles. The mean maximum resistance force of the needle in the echoendoscope with free angle demonstrated that the resistance forces were between 2.10 and 2.34 Newton (N). The mean maximum resistance force increased upon increases in angle of the tip of echoendoscope, particularly in the FNA needles. Among the FNB needles, SharkCore™ had the lowest resistance force (2.23 N). The mean maximum resistance force of the needle alone, the needle in the echoendoscope with free angle, and the needle in the echoendoscope with full-up angle for SonoTip® TopGain were all similar to that of Acquire™. Conclusion SonoTip® TopGain had similar puncturability to Acquire™ in all tested situations. Regarding the puncturability, SharkCore™ is most suitable for insertion into target lesions, when tight echoendoscope tip angle is necessary.
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Affiliation(s)
- Yukitoshi Matsunami
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takao Itoi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takayoshi Tsuchiya
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Kentaro Ishii
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Reina Tanaka
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Ryosuke Tonozuka
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Shuntaro Mukai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Kazumasa Nagai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Kenjiro Yamamoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Yasutsugu Asai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takashi Kurosawa
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Hiroyuki Kojima
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Hirohito Minami
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Toshihiro Homma
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Eri Joyama
- Department of International Medical Care, Tokyo Medical University, Tokyo, Japan
| | - Atsushi Sofuni
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
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von Arx K, Wang Q, Mustafi S, Mazzone DG, Horio M, Mukkattukavil DJ, Pomjakushina E, Pyon S, Takayama T, Takagi H, Kurosawa T, Momono N, Oda M, Brookes NB, Betto D, Zhang W, Asmara TC, Tseng Y, Schmitt T, Sassa Y, Chang J. Fate of charge order in overdoped La-based cuprates. NPJ Quantum Mater 2023; 8:7. [PMID: 38666240 PMCID: PMC11041719 DOI: 10.1038/s41535-023-00539-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 01/09/2023] [Indexed: 04/28/2024]
Abstract
In high-temperature cuprate superconductors, stripe order refers broadly to a coupled spin and charge modulation with a commensuration of eight and four lattice units, respectively. How this stripe order evolves across optimal doping remains a controversial question. Here we present a systematic resonant inelastic x-ray scattering study of weak charge correlations in La2-xSrxCuO4 and La1.8-xEu0.2SrxCuO4. Ultra high energy resolution experiments demonstrate the importance of the separation of inelastic and elastic scattering processes. Long-range temperature-dependent stripe order is only found below optimal doping. At higher doping, short-range temperature-independent correlations are present up to the highest doping measured. This transformation is distinct from and preempts the pseudogap critical doping. We argue that the doping and temperature-independent short-range correlations originate from unresolved electron-phonon coupling that broadly peaks at the stripe ordering vector. In La2-xSrxCuO4, long-range static stripe order vanishes around optimal doping and we discuss both quantum critical and crossover scenarios.
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Affiliation(s)
- K. von Arx
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
- Department of Physics, Chalmers University of Technology, SE-412 96 Göteborg, Sweden
| | - Qisi Wang
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
| | - S. Mustafi
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
| | - D. G. Mazzone
- Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institut, CH-5232 Villigen, PSI Switzerland
| | - M. Horio
- Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581 Japan
| | - D. John Mukkattukavil
- Department of Physics and Astronomy, Uppsala University, Box 516, 751 20 Uppsala, Sweden
| | | | - S. Pyon
- Department of Applied Physics, The University of Tokyo, Tokyo, 113-8646 Japan
| | - T. Takayama
- Max Planck Institute for Solid State Research, 70569 Stuttgart, Germany
| | - H. Takagi
- Max Planck Institute for Solid State Research, 70569 Stuttgart, Germany
- Department of Physics, The University of Tokyo, Tokyo, 113-0033 Japan
| | - T. Kurosawa
- Department of Physics, Hokkaido University, Sapporo, 060-0810 Japan
| | - N. Momono
- Department of Physics, Hokkaido University, Sapporo, 060-0810 Japan
- Department of Applied Sciences, Muroran Institute of Technology, Muroran, 050-8585 Japan
| | - M. Oda
- Department of Physics, Hokkaido University, Sapporo, 060-0810 Japan
| | - N. B. Brookes
- European Synchrotron Radiation Facility, B.P. 220, 38043 Grenoble, France
| | - D. Betto
- European Synchrotron Radiation Facility, B.P. 220, 38043 Grenoble, France
| | - W. Zhang
- Swiss Light Source, Photon Science Division, Paul Scherrer Institut, CH-5232 Villigen, PSI Switzerland
| | - T. C. Asmara
- Swiss Light Source, Photon Science Division, Paul Scherrer Institut, CH-5232 Villigen, PSI Switzerland
| | - Y. Tseng
- Swiss Light Source, Photon Science Division, Paul Scherrer Institut, CH-5232 Villigen, PSI Switzerland
| | - T. Schmitt
- Swiss Light Source, Photon Science Division, Paul Scherrer Institut, CH-5232 Villigen, PSI Switzerland
| | - Y. Sassa
- Department of Physics, Chalmers University of Technology, SE-412 96 Göteborg, Sweden
| | - J. Chang
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
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Campbell DJ, Frachet M, Benhabib S, Gilmutdinov I, Proust C, Kurosawa T, Momono N, Oda M, Horio M, Kramer K, Chang J, Ichioka M, LeBoeuf D. Evidence for a Square-Square Vortex Lattice Transition in a High-T_{c} Cuprate Superconductor. Phys Rev Lett 2022; 129:067001. [PMID: 36018650 DOI: 10.1103/physrevlett.129.067001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 03/01/2022] [Accepted: 06/27/2022] [Indexed: 06/15/2023]
Abstract
Using sound velocity and attenuation measurements in high magnetic fields, we identify a new transition in the vortex lattice state of La_{2-x}Sr_{x}CuO_{4}. The transition, observed in magnetic fields exceeding 35 T and temperatures far below zero field T_{c}, is detected in the compression modulus of the vortex lattice, at a doping level of x=p=0.17. Our theoretical analysis based on Eilenberger's theory of the vortex lattice shows that the transition corresponds to the long-sought 45° rotation of the square vortex lattice, predicted to occur in d-wave superconductors near a van Hove singularity.
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Affiliation(s)
- D J Campbell
- LNCMI-EMFL, CNRS UPR3228, Université Grenoble Alpes, Université de Toulouse, Université de Toulouse 3, INSA-T, Grenoble and Toulouse, France
| | - M Frachet
- LNCMI-EMFL, CNRS UPR3228, Université Grenoble Alpes, Université de Toulouse, Université de Toulouse 3, INSA-T, Grenoble and Toulouse, France
| | - S Benhabib
- LNCMI-EMFL, CNRS UPR3228, Université Grenoble Alpes, Université de Toulouse, Université de Toulouse 3, INSA-T, Grenoble and Toulouse, France
| | - I Gilmutdinov
- LNCMI-EMFL, CNRS UPR3228, Université Grenoble Alpes, Université de Toulouse, Université de Toulouse 3, INSA-T, Grenoble and Toulouse, France
| | - C Proust
- LNCMI-EMFL, CNRS UPR3228, Université Grenoble Alpes, Université de Toulouse, Université de Toulouse 3, INSA-T, Grenoble and Toulouse, France
| | - T Kurosawa
- Department of Physics, Hokkaido University, Sapporo 060-0810, Japan
| | - N Momono
- Muroran Institute of Technology, Muroran 050-8585, Japan
| | - M Oda
- Department of Physics, Hokkaido University, Sapporo 060-0810, Japan
| | - M Horio
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
| | - K Kramer
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
| | - J Chang
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
| | - M Ichioka
- Research Institute for Interdisciplinary Science, Okayama University, Okayama 700-8530, Japan
| | - D LeBoeuf
- LNCMI-EMFL, CNRS UPR3228, Université Grenoble Alpes, Université de Toulouse, Université de Toulouse 3, INSA-T, Grenoble and Toulouse, France
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Honda H, Yamamoto K, Sofuni A, Sugimoto K, Furuichi Y, Tsuchiya T, Ishii K, Tanaka R, Tonozuka R, Mukai S, Nagai K, Asai Y, Matsunami Y, Kurosawa T, Kojima H, Homma T, Minami H, Nakatsubo R, Hirakawa N, Matsubayashi J, Itoi T. Two Cases of Hemorrhagic Ampullary Lesions Successfully Treated by Endoscopic Papillectomy. Intern Med 2022; 61:1843-1848. [PMID: 34866100 PMCID: PMC9259823 DOI: 10.2169/internalmedicine.8294-21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
We herein report two cases of hemorrhagic ampullary lesions in which endoscopic papillotomy was performed to control bleeding and resulted in successful treatment. Both patients were pathologically diagnosed with an underlying pathology characterized by inflammatory cell infiltration and capillary proliferation. They also had disposing factors for bleeding, such as antithrombotic therapy and idiopathic thrombocytopenic purpura. Endoscopic treatment was selected because the risk of surgical resection was high due to the patients' hemorrhagic condition. Both patients were successfully treated without any serious adverse events and had an uneventful postoperative course with no relapse of bleeding.
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Affiliation(s)
- Hidehito Honda
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Kenjiro Yamamoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Atsushi Sofuni
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Katsutoshi Sugimoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Yoshihiro Furuichi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
- Department of Gastroenterology and Hepatology, Niizashiki Central General Hospital, Japan
| | - Takayoshi Tsuchiya
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Kentaro Ishii
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Reina Tanaka
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Ryosuke Tonozuka
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Shuntaro Mukai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Kazumasa Nagai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Yasutsugu Asai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Yukitoshi Matsunami
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Takashi Kurosawa
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Hiroyuki Kojima
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Toshihiro Homma
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Hirohito Minami
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Ryosuke Nakatsubo
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Noriyuki Hirakawa
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Jun Matsubayashi
- Department of Anatomic Pathology, Tokyo Medical University, Japan
| | - Takao Itoi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
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8
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Yamaura K, Mifune Y, Inui A, Nishimoto H, Kurosawa T, Mukohara S, Hoshino Y, Niikura T, Kuroda R. Correction: Antioxidant effect of nicotinamide mononucleotide in tendinopathy. BMC Musculoskelet Disord 2022; 23:541. [PMID: 35668405 PMCID: PMC9169315 DOI: 10.1186/s12891-022-05424-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Affiliation(s)
- Kohei Yamaura
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Yutaka Mifune
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan.
| | - Atsuyuki Inui
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Hanako Nishimoto
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Takashi Kurosawa
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Shintaro Mukohara
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Yuichi Hoshino
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Takahiro Niikura
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Ryosuke Kuroda
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
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Tsuchiya T, Fujisawa T, Kato M, Mizuide M, Torisu Y, Nishimura M, Kurosawa T, Tomishima K, Kutsumi H, Matsuda Y, Arai T, Saya H, Ryozawa S, Isayama H, Itoi T, Yahagi N. A clinical study following phase I/IIa trial of STNM01 to investigate the overall survival and tumor microenvironment in patients with unresectable pancreatic cancer. J Clin Oncol 2022. [DOI: 10.1200/jco.2022.40.16_suppl.4144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
4144 Background: Carbohydrate sulfotransferase 15 (CHST15) is a proteoglycan biosynthetic enzyme and responsible for tumor matrix remodeling. We reported last year the top-line clinical results of Phase I/IIa (PI/IIa) trial of STNM01, a synthetic RNA oligonucleotide to CHST15, as a second-line (2L) therapy in patients with progressive, unresectable pancreatic ductal adenocarcinoma (PDAC). Here we report the final PI/IIa results and follow-up clinical results investigating the changes of tumor microenvironmental parameters and the correlation with overall survival (OS). Methods: An additional clinical study was followed by PI/IIa trial (jRCT2031190055), which was a multicenter, open-label study of locoregional injections with STNM01 three times at 2 week-interval in 4 weeks as one cycle. A total of 3 cycles were repeated at maximum in combination with systemic 2L chemotherapy, oral fluoropyrimidine S-1 in the PI/IIa trial. The primary objective of this additional clinical study was OS. The secondary objectives were relations of tumor microenvironmental parameters evaluated by immunohistochemistry with OS. For comparison analyses, two-tailed unpaired t-test was performed. For correlation analyses, the Pearson coefficient analyses were performed. Results: A total of 22 patients were enrolled in the study. The average number of tumor-infiltrating CD3+ (13.8/mm2) and CD8+ T cells (8.0/mm2) at baseline in the evaluable population (n = 20) was at most one tenth or less, compared to historical data, indicating 2L population contained more T cell-immune suppressive patients. Baseline CD3+ and CD8+ T cells negatively correlated with tumoral CHST15 expression (p = 0.0051, p = 0.0478, respectively). As the final PI/IIa results, the median OS was 7.8 months with 6 and 12 months-survival rates of 68.2% and 31.8%, respectively. Disease control rate was 76.2% including 1 complete response. STNM01 led to a significant reduction in CHST15 at the end of cycle 1 compared to baseline (p = 0.0095, n = 19), and this was associated with increased CD3+ (p = 0.0331) and CD8+ T cells (p = 0.0146) and reduced CD33+ myeloid-derived suppressor cells (MDSCs) (p = 0.0281) in the tumor. Patient subpopulation who survived over 1 year (n = 5) showed a significant fold increase of CD3+ (p = 0.0033) and CD8+ T cells (p = 0.0147) and decrease of CD33+ MDSCs (p = 0.0403) at the end of cycle 1 compared to another subpopulation who survived less than 1 year (n = 13-14). Higher fold increase of CD3+ T cells (p = 0.0035, n = 19) or fold decrease of CD33+ MDSCs (p = 0.0212, n = 15) at the end of cycle 1 significantly correlated with longer OS. Conclusions: Locoregional injection of STNM01 was able to reactivate and augment tumor-infiltrating T cells while repress MDSCs. These changes in tumor immune cell profiles correlate with prolong prognosis in patients with first-line refractory, unresectable PDAC. Clinical trial information: jRCT2031190055.
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Affiliation(s)
- Takayoshi Tsuchiya
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Toshio Fujisawa
- Department of Gastroenterology, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Motohiko Kato
- Division of Research and Development for Minimally Invasive Treatment, Cancer Center, Keio University School of Medicine, Tokyo, Japan
| | - Masafumi Mizuide
- Department of Gastroenterology, Saitama Medical University International Medical Center, Saitama, Japan
| | - Yuichi Torisu
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
| | - Makoto Nishimura
- Department of Gastroenterology, Hepatology and Nutrition Service, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Takashi Kurosawa
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Ko Tomishima
- Department of Gastroenterology, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Hiromu Kutsumi
- Center for Clinical Research and Advanced Medicine Establishment, Shiga University of Medicine, Shiga, Japan
| | - Yoko Matsuda
- Oncology Pathology, Department of Pathology and Host-Defense, Kagawa University, Kagawa, Japan
| | - Tomio Arai
- Department of Pathology, Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Tokyo, Japan
| | - Hideyuki Saya
- Division of Gene Regulation, Institute for Advanced Medical Research, Keio University School of Medicine, Tokyo, Japan
| | - Shomei Ryozawa
- Department of Gastroenterology, Saitama Medical University International Medical Center, Saitama, Japan
| | - Hiroyuki Isayama
- Department of Gastroenterology, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Takao Itoi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Naohisa Yahagi
- Division of Research and Development for Minimally Invasive Treatment, Cancer Center, Keio University School of Medicine, Tokyo, Japan
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Choi J, Wang Q, Jöhr S, Christensen NB, Küspert J, Bucher D, Biscette D, Fischer MH, Hücker M, Kurosawa T, Momono N, Oda M, Ivashko O, Zimmermann MV, Janoschek M, Chang J. Unveiling Unequivocal Charge Stripe Order in a Prototypical Cuprate Superconductor. Phys Rev Lett 2022; 128:207002. [PMID: 35657867 DOI: 10.1103/physrevlett.128.207002] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 04/13/2022] [Indexed: 06/15/2023]
Abstract
In the cuprates, high-temperature superconductivity, spin-density-wave order, and charge-density-wave (CDW) order are intertwined, and symmetry determination is challenging due to domain formation. We investigated the CDW in the prototypical cuprate La_{1.88}Sr_{0.12}CuO_{4} via x-ray diffraction employing uniaxial pressure as a domain-selective stimulus to establish the unidirectional nature of the CDW unambiguously. A fivefold enhancement of the CDW amplitude is found when homogeneous superconductivity is partially suppressed by magnetic field. This field-induced state provides an ideal search environment for a putative pair-density-wave state.
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Affiliation(s)
- J Choi
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
| | - Q Wang
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
| | - S Jöhr
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
| | - N B Christensen
- Department of Physics, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark
| | - J Küspert
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
| | - D Bucher
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
| | - D Biscette
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
| | - M H Fischer
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
| | - M Hücker
- Department of Condensed Matter Physics, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - T Kurosawa
- Department of Physics, Hokkaido University, Sapporo 060-0810, Japan
| | - N Momono
- Department of Physics, Hokkaido University, Sapporo 060-0810, Japan
- Department of Applied Sciences, Muroran Institute of Technology, Muroran 050-8585, Japan
| | - M Oda
- Department of Physics, Hokkaido University, Sapporo 060-0810, Japan
| | - O Ivashko
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
| | - M V Zimmermann
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
| | - M Janoschek
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
- Laboratory for Neutron and Muon Instrumentation, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - J Chang
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
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11
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Yamaura K, Mifune Y, Inui A, Nishimoto H, Kurosawa T, Mukohara S, Hoshino Y, Niikura T, Kuroda R. Antioxidant effect of nicotinamide mononucleotide in tendinopathy. BMC Musculoskelet Disord 2022; 23:249. [PMID: 35287653 PMCID: PMC8922828 DOI: 10.1186/s12891-022-05205-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Accepted: 03/09/2022] [Indexed: 12/12/2022] Open
Abstract
Background A link between tendinopathy and oxidative stress has been recently reported. Nicotinamide mononucleotide (NMN) is a precursor of nicotinamide adenine dinucleotide, which plays an important role in cell redox homeostasis. The aim of this study was to evaluate the antioxidant effect of NMN on tendinopathy in vitro and in vivo. Methods Tenocytes from healthy Sprague-Dawley rats were cultured in regular glucose (RG) and high-glucose (HG) conditions with or without NMN, and were divided into four groups: RG NMN(−), RG NMN(+), HG NMN(−), and HG NMN(+). Cell viability, reactive oxygen species (ROS) accumulation, apoptotic rate, and mRNA expression of nicotinamide adenine dinucleotide phosphate oxidase (NOX)1, NOX4, interleukin (IL)6, sirtuin (SIRT)1, and SIRT6 were investigated. In addition, rats with collagenase-induced tendinopathy were treated with or without NMN. Immunostaining of NOX1 and NOX4; mRNA expression of SIRT1, SIRT6, and IL6; and superoxide dismutase (SOD) activity measurements in the Achilles tendon were performed. Results NMN increased the expression of SIRT1 and SIRT6 in rat tenocytes, but decreased the levels of NOX1, NOX4, IL6, ROS, and apoptosis. In Achilles tendons with collagenase-induced tendinopathy, NMN increased the mRNA expression of SIRT1 and SIRT6, as well as SOD activity; while suppressing protein expression of NOX1 and NOX4, and mRNA expression of IL6. Conclusion The in vitro and in vivo results of this study show that NMN exerts an antioxidant effect on tendinopathy by promoting the expression of SIRT while inhibiting that of NOX.
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Affiliation(s)
- Kohei Yamaura
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Yutaka Mifune
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan.
| | - Atsuyuki Inui
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Hanako Nishimoto
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Takashi Kurosawa
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Shintaro Mukohara
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Yuichi Hoshino
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Takahiro Niikura
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Ryosuke Kuroda
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
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12
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Yamaura K, Mifune Y, Inui A, Nishimoto H, Kataoka T, Kurosawa T, Mukohara S, Hoshino Y, Niikura T, Nagamune K, Kuroda R. Accuracy and reliability of tridimensional electromagnetic sensor system for elbow ROM measurement. J Orthop Surg Res 2022; 17:60. [PMID: 35093124 PMCID: PMC8800242 DOI: 10.1186/s13018-022-02961-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 01/21/2022] [Indexed: 11/16/2022] Open
Abstract
Background While the precise measurement of the range of motion (ROM) of the elbow joint is important for clinical assessment and rehabilitation, problems include low accuracy and reproducibility in goniometer measurements due to the influence of soft tissue. The purpose of this study was to validate elbow joint motion analysis using a three-dimensional electromagnetic sensor system (EMS). Methods The accuracy and reproducibility of the EMS system were evaluated at four angles (0°, 45°, 90°, and 135°) using a model bone of the humerus and forearm. In addition, the maximum extension and maximum flexion of six elbows of six healthy volunteers were assessed by radiographic and EMS measurements. Accuracy was assessed by calculating the mean value of the measurement angle, standard deviation, Pearson’s correlation coefficient, and the Bland–Altman method. Reproducibility was assessed by calculating the intra-rater and inter-rater reliabilities using intraclass correlation coefficients. Results In the model bone evaluation, the mean angles of the EMS measurement were 1.2° ± 2.0°, 45.4° ± 2.1°, 91.7° ± 2.4°, and 134.6° ± 2.7° at 0°, 45°, 90°, and 135°, respectively. In the in vivo evaluation, the elbow angles at the maximum extension with the EMS and radiographic angles were 4.7° ± 3.0° and 2.7° ± 2.0°, respectively, and the angles at maximum flexion were 131.8° ± 13.0° and 130.8° ± 4.5°, respectively. There were statistically significant correlations between the EMS and radiographic measurements; the Bland–Altman plots indicated that the two methods were almost in agreement for both extension and flexion. Conclusions This method of measuring ROM of the elbow joint using EMS showed high accuracy, reliability, and reproducibility. The current results demonstrated the possibility of using the electromagnetic system to provide an accurate evaluation of the elbow joint in clinical settings.
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13
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Nagai K, Sofuni A, Tsuchiya T, Kono S, Ishii K, Tanaka R, Tonozuka R, Mukai S, Yamamoto K, Matsunami Y, Asai Y, Kurosawa T, Kojima H, Yamaguchi H, Nagao T, Itoi T. Efficacy of the Franseen needle for diagnosing gastrointestinal submucosal lesions including small tumors. Endosc Ultrasound 2021; 10:424-430. [PMID: 34975040 PMCID: PMC8785670 DOI: 10.4103/eus-d-21-00035] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Background and Objectives: Several studies have demonstrated that EUS-guided fine-needle biopsy (EUS-FNB) is useful for diagnosing gastrointestinal subepithelial lesions (GI SELs). However, there is limited evidence regarding the use of Franseen needles during EUS-FNB for patients with GI SELs. In addition, the optimal approach for diagnosing small SELs is unclear. This study aimed to evaluate whether EUS-FNB using a Franseen needle was effective for diagnosing GI SELs, including small lesions. Methods: Between January 2013 and January 2020, 150 consecutive patients with GI SELs underwent EUS-FNA/FNB to achieve a histological diagnosis. Eighty-six consecutive patients who underwent EUS-FNB using a Franseen needle were compared to 64 patients who underwent EUS-FNA using a conventional needle. Results: The diagnostic yield was significantly higher using a Franseen needle than using a conventional needle (85% vs. 75%, P = 0.006). Furthermore, in cases with SELs that were <20 mm, the diagnostic yield was significantly higher using a Franseen needle than using a conventional needle (81% vs. 45%; P = 0.003). Multivariate analysis revealed that obtaining a sufficient diagnostic sample was independently predicted by Franseen needle use (adjusted odds ratio: 2.8, 95% confidence interval: 1.2–6.3; P = 0.01) and tumor size of >20 mm (adjusted odds ratio: 3.4, 95% confidence interval: 1.4–8.2; P = 0.006). Conclusion: Even when attempting to diagnose small GI SELs, EUS-FNB using a Franseen needle appears to provide a more efficient acquisition of true histological core tissue than using a conventional needle.
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Affiliation(s)
- Kazumasa Nagai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Atsushi Sofuni
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takayoshi Tsuchiya
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Shin Kono
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Kentaro Ishii
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Reina Tanaka
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Ryosuke Tonozuka
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Shuntaro Mukai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Kenjiro Yamamoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Yukitoshi Matsunami
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Yasutsugu Asai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takashi Kurosawa
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Hiroyuki Kojima
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Hiroshi Yamaguchi
- Department of Anatomic Pathology, Tokyo Medical University, Tokyo, Japan
| | - Toshitaka Nagao
- Department of Anatomic Pathology, Tokyo Medical University, Tokyo, Japan
| | - Takao Itoi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
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14
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Sofuni A, Asai Y, Tsuchiya T, Ishii K, Tanaka R, Tonozuka R, Honjo M, Mukai S, Nagai K, Yamamoto K, Matsunami Y, Kurosawa T, Kojima H, Homma T, Minami H, Nakatsubo R, Hirakawa N, Miyazawa H, Nagakawa Y, Tsuchida A, Itoi T. Novel Therapeutic Method for Unresectable Pancreatic Cancer-The Impact of the Long-Term Research in Therapeutic Effect of High-Intensity Focused Ultrasound (HIFU) Therapy. Curr Oncol 2021; 28:4845-4861. [PMID: 34898585 PMCID: PMC8628685 DOI: 10.3390/curroncol28060409] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 09/18/2021] [Accepted: 11/17/2021] [Indexed: 11/16/2022] Open
Abstract
High-intensity focused ultrasound (HIFU) is a novel advanced therapy for unresectable pancreatic cancer (PC). HIFU therapy with chemotherapy is being promoted as a novel method to control local advancement by tumor ablation. We evaluated the therapeutic effects of HIFU therapy in locally advanced and metastatic PC. PC patients were treated with HIFU as an optional local therapy and systemic chemotherapy. The FEP-BY02 (Yuande Bio-Medical Engineering) HIFU device was used under ultrasound guidance. Of 176 PC patients, 89 cases were Stage III and 87 were Stage IV. The rate of complete tumor ablation was 90.3%, while that of symptom relief was 66.7%. The effectiveness on the primary lesions were as follows: complete response (CR): n = 0, partial response (PR): n = 21, stable disease (SD): n = 106, and progressive disease (PD): n = 49; the primary disease control rate was 72.2%. Eight patients underwent surgery. The median survival time (MST) after diagnosis for HIFU with chemotherapy compared to chemotherapy alone (100 patients in our hospital) was 648 vs. 288 days (p < 0.001). Compared with chemotherapy alone, the combination of HIFU therapy and chemotherapy demonstrated significant prolongation of prognosis. This study suggests that HIFU therapy has the potential to be a novel combination therapy for unresectable PC.
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Affiliation(s)
- Atsushi Sofuni
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku Shinjuku-ku, Tokyo 160-0023, Japan; (Y.A.); (T.T.); (K.I.); (R.T.); (R.T.); (M.H.); (S.M.); (K.N.); (K.Y.); (Y.M.); (T.K.); (H.K.); (T.H.); (H.M.); (R.N.); (N.H.); (H.M.); (T.I.)
| | - Yasutsugu Asai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku Shinjuku-ku, Tokyo 160-0023, Japan; (Y.A.); (T.T.); (K.I.); (R.T.); (R.T.); (M.H.); (S.M.); (K.N.); (K.Y.); (Y.M.); (T.K.); (H.K.); (T.H.); (H.M.); (R.N.); (N.H.); (H.M.); (T.I.)
| | - Takayoshi Tsuchiya
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku Shinjuku-ku, Tokyo 160-0023, Japan; (Y.A.); (T.T.); (K.I.); (R.T.); (R.T.); (M.H.); (S.M.); (K.N.); (K.Y.); (Y.M.); (T.K.); (H.K.); (T.H.); (H.M.); (R.N.); (N.H.); (H.M.); (T.I.)
| | - Kentaro Ishii
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku Shinjuku-ku, Tokyo 160-0023, Japan; (Y.A.); (T.T.); (K.I.); (R.T.); (R.T.); (M.H.); (S.M.); (K.N.); (K.Y.); (Y.M.); (T.K.); (H.K.); (T.H.); (H.M.); (R.N.); (N.H.); (H.M.); (T.I.)
| | - Reina Tanaka
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku Shinjuku-ku, Tokyo 160-0023, Japan; (Y.A.); (T.T.); (K.I.); (R.T.); (R.T.); (M.H.); (S.M.); (K.N.); (K.Y.); (Y.M.); (T.K.); (H.K.); (T.H.); (H.M.); (R.N.); (N.H.); (H.M.); (T.I.)
| | - Ryosuke Tonozuka
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku Shinjuku-ku, Tokyo 160-0023, Japan; (Y.A.); (T.T.); (K.I.); (R.T.); (R.T.); (M.H.); (S.M.); (K.N.); (K.Y.); (Y.M.); (T.K.); (H.K.); (T.H.); (H.M.); (R.N.); (N.H.); (H.M.); (T.I.)
| | - Mitsuyoshi Honjo
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku Shinjuku-ku, Tokyo 160-0023, Japan; (Y.A.); (T.T.); (K.I.); (R.T.); (R.T.); (M.H.); (S.M.); (K.N.); (K.Y.); (Y.M.); (T.K.); (H.K.); (T.H.); (H.M.); (R.N.); (N.H.); (H.M.); (T.I.)
| | - Shuntaro Mukai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku Shinjuku-ku, Tokyo 160-0023, Japan; (Y.A.); (T.T.); (K.I.); (R.T.); (R.T.); (M.H.); (S.M.); (K.N.); (K.Y.); (Y.M.); (T.K.); (H.K.); (T.H.); (H.M.); (R.N.); (N.H.); (H.M.); (T.I.)
| | - Kazumasa Nagai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku Shinjuku-ku, Tokyo 160-0023, Japan; (Y.A.); (T.T.); (K.I.); (R.T.); (R.T.); (M.H.); (S.M.); (K.N.); (K.Y.); (Y.M.); (T.K.); (H.K.); (T.H.); (H.M.); (R.N.); (N.H.); (H.M.); (T.I.)
| | - Kenjiro Yamamoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku Shinjuku-ku, Tokyo 160-0023, Japan; (Y.A.); (T.T.); (K.I.); (R.T.); (R.T.); (M.H.); (S.M.); (K.N.); (K.Y.); (Y.M.); (T.K.); (H.K.); (T.H.); (H.M.); (R.N.); (N.H.); (H.M.); (T.I.)
| | - Yukitoshi Matsunami
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku Shinjuku-ku, Tokyo 160-0023, Japan; (Y.A.); (T.T.); (K.I.); (R.T.); (R.T.); (M.H.); (S.M.); (K.N.); (K.Y.); (Y.M.); (T.K.); (H.K.); (T.H.); (H.M.); (R.N.); (N.H.); (H.M.); (T.I.)
| | - Takashi Kurosawa
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku Shinjuku-ku, Tokyo 160-0023, Japan; (Y.A.); (T.T.); (K.I.); (R.T.); (R.T.); (M.H.); (S.M.); (K.N.); (K.Y.); (Y.M.); (T.K.); (H.K.); (T.H.); (H.M.); (R.N.); (N.H.); (H.M.); (T.I.)
| | - Hiroyuki Kojima
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku Shinjuku-ku, Tokyo 160-0023, Japan; (Y.A.); (T.T.); (K.I.); (R.T.); (R.T.); (M.H.); (S.M.); (K.N.); (K.Y.); (Y.M.); (T.K.); (H.K.); (T.H.); (H.M.); (R.N.); (N.H.); (H.M.); (T.I.)
| | - Toshihiro Homma
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku Shinjuku-ku, Tokyo 160-0023, Japan; (Y.A.); (T.T.); (K.I.); (R.T.); (R.T.); (M.H.); (S.M.); (K.N.); (K.Y.); (Y.M.); (T.K.); (H.K.); (T.H.); (H.M.); (R.N.); (N.H.); (H.M.); (T.I.)
| | - Hirohito Minami
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku Shinjuku-ku, Tokyo 160-0023, Japan; (Y.A.); (T.T.); (K.I.); (R.T.); (R.T.); (M.H.); (S.M.); (K.N.); (K.Y.); (Y.M.); (T.K.); (H.K.); (T.H.); (H.M.); (R.N.); (N.H.); (H.M.); (T.I.)
| | - Ryosuke Nakatsubo
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku Shinjuku-ku, Tokyo 160-0023, Japan; (Y.A.); (T.T.); (K.I.); (R.T.); (R.T.); (M.H.); (S.M.); (K.N.); (K.Y.); (Y.M.); (T.K.); (H.K.); (T.H.); (H.M.); (R.N.); (N.H.); (H.M.); (T.I.)
| | - Noriyuki Hirakawa
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku Shinjuku-ku, Tokyo 160-0023, Japan; (Y.A.); (T.T.); (K.I.); (R.T.); (R.T.); (M.H.); (S.M.); (K.N.); (K.Y.); (Y.M.); (T.K.); (H.K.); (T.H.); (H.M.); (R.N.); (N.H.); (H.M.); (T.I.)
| | - Hideaki Miyazawa
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku Shinjuku-ku, Tokyo 160-0023, Japan; (Y.A.); (T.T.); (K.I.); (R.T.); (R.T.); (M.H.); (S.M.); (K.N.); (K.Y.); (Y.M.); (T.K.); (H.K.); (T.H.); (H.M.); (R.N.); (N.H.); (H.M.); (T.I.)
| | - Yuichi Nagakawa
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku Shinjuku-ku, Tokyo 160-0023, Japan; (Y.N.); (A.T.)
| | - Akihiko Tsuchida
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku Shinjuku-ku, Tokyo 160-0023, Japan; (Y.N.); (A.T.)
| | - Takao Itoi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku Shinjuku-ku, Tokyo 160-0023, Japan; (Y.A.); (T.T.); (K.I.); (R.T.); (R.T.); (M.H.); (S.M.); (K.N.); (K.Y.); (Y.M.); (T.K.); (H.K.); (T.H.); (H.M.); (R.N.); (N.H.); (H.M.); (T.I.)
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Yamaura K, Mifune Y, Inui A, Nishimoto H, Kurosawa T, Mukohara S, Yoshikawa T, Hoshino Y, Niikura T, Kokubu T, Kuroda R. Relationship between glenohumeral internal rotation deficit and shoulder conditions in professional baseball pitchers. J Shoulder Elbow Surg 2021; 30:2073-2081. [PMID: 33290850 DOI: 10.1016/j.jse.2020.10.041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 10/27/2020] [Accepted: 10/30/2020] [Indexed: 02/01/2023]
Abstract
BACKGROUND Previous studies have reported that glenohumeral internal rotation deficit (GIRD) may increase the risk of throwing-shoulder injuries. The purpose of this study was to analyze the conditions of the throwing shoulder in professional baseball pitchers with GIRD by comparing with those in pitchers without GIRD. METHODS In total, 26 male professional baseball pitchers participated in this study. We evaluated passive range of motion (ROM) and isometric muscle strength at internal rotation (IR) and external rotation (ER) at 90° of abduction, as well as the muscle thickness of the supraspinatus (SSP) and infraspinatus (ISP) by ultrasound. The pitchers were divided into 2 groups: those who exhibited a loss of IR of ≥20° in the throwing shoulder (GIRD group) and those who did not (non-GIRD group). RESULTS In the GIRD group, the total ROM deficit (throwing side - non-throwing side) (P < .001), the muscle thickness ratio (throwing to non-throwing) of the SSP and ISP (P = .017 and P = .014, respectively), and the muscle strength ratio (throwing to non-throwing) of ER (P = .028) were significantly lower than those in the non-GIRD group. In contrast, the muscle strength ratio (throwing to non-throwing) of IR was significantly higher in the GIRD group than in the non-GIRD group (P = .0064). CONCLUSIONS We have shown that GIRD has significant correlations with several conditions, such as atrophy of the SSP and ISP, weakness of ER strength, enhancement of IR strength, limitation of total ROM, and throwing side, all of which could be important factors for throwing-shoulder injuries.
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Affiliation(s)
- Kohei Yamaura
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yutaka Mifune
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan.
| | - Atsuyuki Inui
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Hanako Nishimoto
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takashi Kurosawa
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Shintaro Mukohara
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Tomoya Yoshikawa
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yuichi Hoshino
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takahiro Niikura
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takeshi Kokubu
- Department of Orthopaedic Surgery, National Hospital Organization Kobe Medical Center, Kobe, Japan
| | - Ryosuke Kuroda
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
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16
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Yamaura K, Mifune Y, Inui A, Nishimoto H, Kataoka T, Kurosawa T, Mukohara S, Niikura T, Kokubu T, Kuroda R. Sequential Changes in Posterior Shoulder Muscle Elasticity After Throwing as Assessed via Ultrasound Shear Wave Elastography. Orthop J Sports Med 2021; 9:23259671211021362. [PMID: 34395682 PMCID: PMC8361526 DOI: 10.1177/23259671211021362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Accepted: 02/23/2021] [Indexed: 11/15/2022] Open
Abstract
Background Improvements in ultrasound diagnostic equipment and techniques can enable muscle stiffness to be measured quantitatively as muscle elasticity using ultrasound shear wave elastography (USWE), where high muscle elasticity values represent muscle stiffness. Purpose To use USWE to analyze the sequential changes in muscle elasticity in the posterior shoulder before and after pitching. Study Design Descriptive laboratory study. Methods The authors evaluated 14 baseball players who had played in high school or college at an intermediate level. The elasticity of the supraspinatus, infraspinatus (ISP), middle trapezius, lower trapezius (LT), rhomboideus, and serratus anterior muscles of the throwing shoulder was measured using USWE at 3 time points: before, immediately after, and 24 hours after a throwing session of 100 pitches. The authors analyzed the sequential changes in the mean elasticity values of the respective muscles at the 3 time points. Results The mean elasticity values before, immediately after, and 24 hours after throwing were as follows: supraspinatus: 32.9, 53.4, 43.8 kPa; ISP: 22.7, 44.8, 43.7 kPa; middle trapezius: 45.1, 70.3, 59.9 kPa; LT: 32.8, 45.5, 46.5 kPa; rhomboideus: 29.1, 47.5, 38.8 kPa; and serratus anterior: 19.2, 36.9, 26.5 kPa, respectively. The mean elasticity values for all tested muscles were significantly higher immediately after throwing compared with before throwing (P ≤ .0086 for all), and elasticity values in the ISP and LT remained significantly higher 24 hours after throwing compared with before throwing (P ≤ .019 for both). Conclusion The study results indicated that pitching significantly increased ISP and LT muscle elasticity even after 24 hours.
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Affiliation(s)
- Kohei Yamaura
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yutaka Mifune
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Atsuyuki Inui
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Hanako Nishimoto
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takeshi Kataoka
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takashi Kurosawa
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Shintaro Mukohara
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takahiro Niikura
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takeshi Kokubu
- Department of Orthopaedic Surgery, Shin-Suma General Hospital, Kobe, Japan
| | - Ryosuke Kuroda
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
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17
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Nakatsubo R, Yamauchi Y, Hiraizumi T, Naruse F, Kanda R, Suzuki Y, Kakegawa T, Kurosawa T, Yoshimasu Y, Saguchi T, Sofuni A, Itoi T. Successful management of thrombocytopenia by partial splenic embolization in patients with advanced gastric cancer and invasion of the splenic vein: Case reports. Medicine (Baltimore) 2021; 100:e26651. [PMID: 34260567 PMCID: PMC8284730 DOI: 10.1097/md.0000000000026651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 06/28/2021] [Indexed: 01/04/2023] Open
Abstract
RATIONALE Hypersplenism causes thrombocytopenia, which may lead to the reduction or discontinuation of chemotherapy. Partial splenic embolization (PSE) is an effective treatment for thrombocytopenia associated with hypersplenism. However, there have been no reports of patients with gastric cancer who have resumed and continued chemotherapy after PSE for splenic hypersplenism associated with tumor infiltration.Here, we report two cases in which we performed PSE for hypersplenism associated with gastric cancer that had invaded the splenic vein. Chemotherapy was continued in both cases. PATIENT CONCERNS Both patients developed thrombocytopenia with splenomegaly due to advanced gastric cancer that required discontinuation of chemotherapy. DIAGNOSIS Upper gastrointestinal endoscopy and computed tomography showed advanced gastric cancer with invasion of the splenic vein and splenomegaly. Both patients developed thrombocytopenia. INTERVENTIONS Patients were treated with PSE. OUTCOMES PSE produced an increase in thrombocyte count, and chemotherapy could be resumed. LESSONS PSE seems to be a useful treatment for thrombocytopenia with splenomegaly associated with advanced gastric cancer and may allow continuation of chemotherapy.
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Affiliation(s)
- Ryosuke Nakatsubo
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Yoshiya Yamauchi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Taisho Hiraizumi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Fumi Naruse
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Ryoya Kanda
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Yuka Suzuki
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Tatsuya Kakegawa
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takashi Kurosawa
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Yu Yoshimasu
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Toru Saguchi
- Department of Radiology, Tokyo Medical University, Tokyo, Japan
| | - Atsushi Sofuni
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takao Itoi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
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18
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Mukohara S, Mifune Y, Inui A, Nishimoto H, Kurosawa T, Yamaura K, Yoshikawa T, Shinohara I, Hoshino Y, Nagamune K, Kuroda R. A new quantitative evaluation system for distal radioulnar joint instability using a three-dimensional electromagnetic sensor. J Orthop Surg Res 2021; 16:452. [PMID: 34261514 PMCID: PMC8278667 DOI: 10.1186/s13018-021-02601-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 07/04/2021] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND The accurate assessment of distal radioulnar joint (DRUJ) instability is still challenging as there is no established objective evaluation method. This study aimed to develop a noninvasive measurement method using a three-dimensional electromagnetic sensor system (EMS) to quantitatively assess and characterize the normal DRUJ movement in healthy volunteers. METHODS The DRUJ movement was mimicked using both a block model and saw bone. Movement of the models was measured by EMS, and the accuracy and reproducibility of the measurements were assessed. In vivo measurement was performed in a sitting position with the elbow flexed and the forearm pronated. One sensor each was attached to the distal radial shaft and the ulnar head. The examiners fixed the distal radius and the carpal bones, moved the ulnar head from the dorsal to the volar side and measured the dorsovolar translation. The volar translation was measured by EMS and ultrasonography, and the correlation coefficient was calculated. The dorsovolar translation was evaluated in 14 healthy volunteers (7 men and 7 women) by three hand surgeons. The intraclass and inter-rater correlation coefficients (ICCs), the differences between the dominant and non-dominant sides and between men and women were assessed. RESULTS The accuracy and reproducibility assessment results of the EMS showed high accuracy and reproducibility. In the comparison between EMS and ultrasonography, the correlation coefficient was 0.920 (p = 0.16 × 10-3). The ICC (1,5) for the intra-rater reliability was 0.856, and the ICC (2,5) for inter-rater reliability was 0.868. The mean ulnar head translation and difference between dominant and non-dominant sides were 6.00 ± 1.16 mm (mean ± SD) and - 0.12 ± 0.40 mm, respectively. There were no significant differences between any of the parameters. CONCLUSIONS A new measurement method using EMS could evaluate DRUJ movement with high accuracy, reproducibility, and intra- and inter-rater reliability. In healthy volunteers, the dorsovolar ulnar head translation was 6.00 mm. The difference between the dominant and non-dominant sides was < 1.0 mm with no significant difference. EMS provided an objective, non-invasive, real-time assessment of dynamic changes in the DRUJ. These findings could be useful in the treatment of patients with DRUJ instability.
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Affiliation(s)
- Shintaro Mukohara
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan.
| | - Yutaka Mifune
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Atsuyuki Inui
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Hanako Nishimoto
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takashi Kurosawa
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Kohei Yamaura
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Tomoya Yoshikawa
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Issei Shinohara
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yuichi Hoshino
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Kouki Nagamune
- Department of Human and Artificial Intelligent Systems, School of Engineering, University of Fukui, Fukui, Japan
| | - Ryosuke Kuroda
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
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19
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Nagai K, Sofuni A, Tsuchiya T, Ishii K, Tanaka R, Tonozuka R, Mukai S, Yamamoto K, Matsunami Y, Asai Y, Kurosawa T, Kojima H, Minami H, Honma T, Katanuma A, Itoi T. The feasibility of pancreatic duct stenting using a novel 4-Fr plastic stent with a 0.025-in. guidewire. Sci Rep 2021; 11:14285. [PMID: 34253746 PMCID: PMC8275660 DOI: 10.1038/s41598-021-92811-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 07/01/2021] [Indexed: 11/18/2022] Open
Abstract
Pancreatic duct stenting is a well-established method for reducing post-endoscopic retrograde cholangiopancreatography (ERCP) pancreatitis. However, there is no consensus on the optimal type of plastic stent. This study aimed to evaluate the feasibility and safety of a new 4-Fr plastic stent for pancreatic duct stenting. Forty-nine consecutive patients who placed the 4-Fr stent into the pancreatic duct (4Fr group) were compared with 187 consecutive patients who placed a conventional 5-Fr stent (control group). The primary outcome was technical success. Complications rate, including post-ERCP pancreatitis (PEP) were the secondary outcomes. Propensity score matching was introduced to reduce selection bias. The technical success rate was 100% in the 4Fr group and 97.9% in the control group (p = 0.315). Post-ERCP amylase level was significantly lower in the 4-Fr group than the control group before propensity score matching (p = 0.006), though without statistical significance after propensity score matching (p = 0.298). The rate of PEP in the 4Fr group (6.1%) was lower than the control group (15.5%), though without statistical significance before (p = 0.088) and after (p = 1.00) propensity score matching. Pancreatic duct stenting using a novel 4-Fr plastic stent would be at least similar or more feasible and safe compared to the conventional plastic stent.
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Affiliation(s)
- Kazumasa Nagai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Atsushi Sofuni
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Takayoshi Tsuchiya
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Kentaro Ishii
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Reina Tanaka
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Ryosuke Tonozuka
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Shuntaro Mukai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Kenjiro Yamamoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Yukitoshi Matsunami
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Yasutsugu Asai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Takashi Kurosawa
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Hiroyuki Kojima
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Hirohito Minami
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Toshihiro Honma
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Akio Katanuma
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan.,Center for Gastroenterology, Teine Keijinkai Hospital, Sapporo, Japan
| | - Takao Itoi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan.
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20
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Mukohara S, Mifune Y, Inui A, Nishimoto H, Kurosawa T, Yamaura K, Yoshikawa T, Kuroda R. In vitro and in vivo tenocyte-protective effectiveness of dehydroepiandrosterone against high glucose-induced oxidative stress. BMC Musculoskelet Disord 2021; 22:519. [PMID: 34090401 PMCID: PMC8180149 DOI: 10.1186/s12891-021-04398-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 05/17/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Dehydroepiandrosterone (DHEA), an adrenal steroid, has a protective role against diabetes. This study aimed to investigate the in vitro and in vivo protective effects of DHEA against high glucose-induced oxidative stress in tenocytes and tendons. METHODS Tenocytes from normal Sprague-Dawley rats were cultured in low-glucose (LG) or high-glucose (HG) medium with or without DHEA. The experimental groups were: control group (LG without DHEA), LG with DHEA, HG without DHEA, and HG with DHEA. Reactive oxygen species (ROS) production, apoptosis, and messenger RNA (mRNA) expression of NADPH oxidase (NOX) 1 and 4, and interleukin-6 (IL-6) were determined. Further, diabetic rats were divided into a control group and a DHEA-injected group (DHEA group). NOX1 and NOX4 protein expression and mRNA expression of NOX1, NOX4, IL-6, matrix metalloproteinase (MMP)-2, tissue inhibitors of matrix metalloproteinase (TIMP)-2, and type I and III collagens in the Achilles tendon were determined. RESULTS In rat tenocytes, DHEA decreased the expression of NOX1 and IL-6, ROS accumulation, and apoptotic cells. In the diabetic rat Achilles tendon, NOX1 protein expression and mRNA expression of NOX1, IL-6, MMP-2, TIMP-2, and type III collagen were significantly lower while type I collagen expression was significantly higher in the DHEA group than in the control group. CONCLUSIONS DHEA showed antioxidant and anti-inflammatory effects both in vitro and in vivo. Moreover, DHEA improved tendon matrix synthesis and turnover, which are affected by hyperglycemic conditions. DHEA is a potential preventive drug for diabetic tendinopathy.
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Affiliation(s)
- Shintaro Mukohara
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, 650-0017, Kobe, Japan
| | - Yutaka Mifune
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, 650-0017, Kobe, Japan.
| | - Atsuyuki Inui
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, 650-0017, Kobe, Japan
| | - Hanako Nishimoto
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, 650-0017, Kobe, Japan
| | - Takashi Kurosawa
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, 650-0017, Kobe, Japan
| | - Kohei Yamaura
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, 650-0017, Kobe, Japan
| | - Tomoya Yoshikawa
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, 650-0017, Kobe, Japan
| | - Ryosuke Kuroda
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, 650-0017, Kobe, Japan
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21
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Tsuchiya T, Fujisawa T, Kato M, Mizuide M, Torisu Y, Nishimura M, Kurosawa T, Tomishima K, Takakura K, Kutsumi H, Matsuda Y, Arai T, Saya H, Ryozawa S, Isayama H, Itoi T, Yahagi N. A phase I/IIa trial of the RNA oligonucleotide STNM01 by EUS-FNI to investigate the safety and efficacy in patients with first-line refractory, unresectable pancreatic cancer. J Clin Oncol 2021. [DOI: 10.1200/jco.2021.39.15_suppl.4120] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
4120 Background: Carbohydrate sulfotransferase 15 (CHST15) is an enzyme that synthesizes heavily sulfated matrix glycosaminoglycan and shown to promote tumor invasion and correlate with poor prognosis in pancreatic ductal adenocarcinoma (PDAC). To explore the role of CHST15 blockage, we conducted a Phase I/IIa (P I/IIa) study to investigate the safety and efficacy of EUS guided locoregional injection of STNM01, a synthetic RNA oligonucleotide, in patients with unresectable PDAC, refractory to first-line chemotherapy. Methods: This was an open-label and dose-escalation study of STNM01 as second-line (2L) therapy in unresectable PDAC patients at 4 centers in Japan. One cycle consists of locoregional injection with STNM01 three times at 2 week-interval in 4 weeks (Days 0, 14 and 28 of dosing) in combination with systemic 2L chemotherapy. A 3+3 dose cohort escalation design initiated with 250 nM (n = 3) followed by 1,000 nM (n = 3), 2,500 nM (n = 3) and 10,000 nM (n = 4) was used for P I part. P IIa part (n = 9) was subsequently conducted with MTD or the highest dose level determined by P I. The primary outcome was incidence of DLT at the end of cycle 1. The secondary outcomes included overall survival (OS), local tumor response, histology and safety. This study was registered with jRCT (jRCT2031190055). Results: A total of 22 patients across 4 doses were enrolled in the study of which 21 were evaluable as per protocol population. All patients received S-1 as a systemic 2L chemotherapy and total 3 cycles were repeated at maximum. The most common AEs were abdominal pain and pyrexia. There were 9 grade 3 AEs. No drug-related SAE as well as DLT was observed. Since MTD was not reached in P I, P IIa was conducted with the highest dose, 10,000 nM. The 6-month survival rate in the entire population (n = 21) and in the highest dose population (n = 12; 3 for P I and 9 for P IIa) was 66.7 and 83.3%, respectively. In histological analyses, the % positive area of CHST15 tended to show dose-dependent suppression at the end of cycle 1, especially with 70.0% reduction from baseline in the highest dose population. Increased tumoral infiltrations of CD3+, CD8+ and CD20+ cells were observed during study period in the highest dose population. Local tumor response for the entire population showed 14 patients (66.7%) with stable disease. Notably, one patient showed complete disappearance on the CT image of both primary and metastatic tumors in the regional lymph node. Conclusions: Repeated locoregional injection of STNM01 is safe and well tolerated in patients with unresectable PDAC as combined 2L therapy. The 6-month survival rate of 10,000 nM of STNM01 was 83.3%, which is remarkable compared with previously reported data. Unexpected mode of action for tumoral lymphocyte infiltration also suggests the promising potential of locoregional injection of STNM01 as a new therapeutic option for PDAC. Clinical trial information: jRCT2031190055.
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Affiliation(s)
- Takayoshi Tsuchiya
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Toshio Fujisawa
- Department of Gastroenterology, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Motohiko Kato
- Division of Research and Development for Minimally Invasive Treatment, Cancer Center, Keio University School of Medicine, Tokyo, Japan
| | - Masafumi Mizuide
- Department of Gastroenterology, Saitama Medical University International Medical Center, Saitama, Japan
| | - Yuichi Torisu
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
| | - Makoto Nishimura
- Department of Gastroenterology, Hepatology and Nutrition Service, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Takashi Kurosawa
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Ko Tomishima
- Department of Gastroenterology, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Kazuki Takakura
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
| | - Hiromu Kutsumi
- Center for Clinical Research and Advanced Medicine Establishment, Shiga University of Medicine, Shiga, Japan
| | - Yoko Matsuda
- Oncology Pathology, Department of Pathology and Host-Defense, Kagawa University, Kagawa, Japan
| | - Tomio Arai
- Department of Pathology, Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Tokyo, Japan
| | - Hideyuki Saya
- Division of Gene Regulation, Institute for Advanced Medical Research, Keio University School of Medicine, Tokyo, Japan
| | - Shomei Ryozawa
- Department of Gastroenterology, Saitama Medical University International Medical Center, Saitama, Japan
| | - Hiroyuki Isayama
- Department of Gastroenterology, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Takao Itoi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Naohisa Yahagi
- Division of Research and Development for Minimally Invasive Treatment, Cancer Center, Keio University School of Medicine, Tokyo, Japan
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Mukohara S, Mifune Y, Inui A, Nishimoto H, Kurosawa T, Yamaura K, Yoshikawa T, Waki T, Kuroda T, Niikura T, Kuroda R. Effects of trochlear fragmentation on functional outcome in coronal shear fractures: a retrospective comparative study. JSES Int 2021; 5:571-577. [PMID: 34136873 PMCID: PMC8178597 DOI: 10.1016/j.jseint.2020.12.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Background Coronal shear fractures of the distal humerus are rare injuries, and fragmentation of the capitellum and trochlea with posterior comminution is challenging for surgeons. We retrospectively evaluated the functional outcomes of patients with coronal shear fractures managed with open reduction and internal fixation, focusing on the number of trochlea fragments in Dubberley type 3B fractures. Materials and methods The functional outcomes of 25 patients, including 8 patients with type 3B fractures, with a mean age (and standard deviation) of 57 ± 20 years, were evaluated at a mean follow-up duration of 15 ± 9 months. Type 3B fractures were classified into two groups: those with two trochlea fragments or less group (group A) and those with three or more fragments (group B). Patient outcomes were assessed with clinical and radiographic examination, range of motion, and the Mayo Elbow Performance scale (MEPS). Results Two patients with type 3B in group B experienced nonunion, and two patients with type 3B in group A and 1 patient with type 1B demonstrated avascular necrosis on radiographs. The average MEPS score was 96.3 points (range, 70-100), with 18 excellent, 5 good, and 1 fair results. The average range of motion was 10 ± 8 to 130 ± 12. The MEPS score worsened as Dubberley classification progressed from type 1 to type 3 (98.3 vs. 96.7 vs. 88, P = .014, respectively) and subtypes A to B (97.9 vs. 90, P = .014, respectively). In comparing groups A and B, the MEPS score was significantly worse in group B (93.8 vs. 76.3, P = .006). Conclusion Our open reduction and internal fixation results were largely good, although functional outcomes were diminished as Dubberley classification progressed from type 1 to type 3 and subtype A to B. Type 3B fractures with three trochlea fragments or more in the elderly were the most difficult to treat with open reduction and internal fixation and possibly 1-term total elbow arthroplasty.
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Affiliation(s)
- Shintaro Mukohara
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yutaka Mifune
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Atsuyuki Inui
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Hanako Nishimoto
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takashi Kurosawa
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Kohei Yamaura
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Tomoya Yoshikawa
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takahiro Waki
- Department of Orthopedic Surgery, Akashi Medical Center, Akashi, Japan
| | - Tsukasa Kuroda
- Department of Orthopaedic Surgery, Shinsuma Hospital, Kobe, Japan
| | - Takahiro Niikura
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Ryosuke Kuroda
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
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Inui A, Mifune Y, Nishimoto H, Kurosawa T, Yamaura K, Mukouhara S, Yoshikawa T, Kuroda R. Anatomical Assessment of Cephalic Vein and Superficial Branch of Radial Nerve Using High-Resolution Ultrasound Imaging. J Hand Microsurg 2021; 15:41-44. [PMID: 36761050 PMCID: PMC9904969 DOI: 10.1055/s-0041-1722814] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Abstract
Introduction The superficial branch of the radial nerve (SBRN) has a risk of nerve injury during cephalic vein (CV) cannulation. Due to the lack of imaging study regarding SBRN and CV relationship, we analyzed the anatomical relationship between the SBRN and the CV using ultrasound (US) imaging. Materials and Methods In total, 82 upper limbs of 41 healthy volunteers were analyzed. The SBRN and CV were identified at the following three points in the elbow extension and pronation position: at the radial styloid process (point 1), 5 cm proximal to point 1 (point 2), and 10 cm proximal to point 1 (point 3). Results The distance between the SBRN and CV was 1.1 ± 1.0 mm at point 1, 1.3 ± 1.3 mm at point 2, and 2.1 ± 1.6 mm at point 3. The depth of the SBRN from the surface of the skin was 2.7 ± 0.9 mm at point 1, 3.5 ± 1.1 mm at point 2, and 5.5 ± 1.9 mm at point 3. The percentage of the SBRN that ran beneath the CV was 17.5%, 53.5%, and 92.4% at points 1, 2, and 3, respectively. Conclusion Ultrasonography can reveal the anatomical relationship between the SBRN and CV.
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Affiliation(s)
- Atsuyuki Inui
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Chuo-ku, Kobe, Japan,Address for correspondence Atsuyuki Inui, MD, PhD Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine7-5-1Kusunoki-cho, Chuo-ku, Kobe 650-0017Japan
| | - Yutaka Mifune
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Chuo-ku, Kobe, Japan
| | - Hanako Nishimoto
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Chuo-ku, Kobe, Japan
| | - Takashi Kurosawa
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Chuo-ku, Kobe, Japan
| | - Kohei Yamaura
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Chuo-ku, Kobe, Japan
| | - Shintaro Mukouhara
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Chuo-ku, Kobe, Japan
| | - Tomoya Yoshikawa
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Chuo-ku, Kobe, Japan
| | - Ryosuke Kuroda
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Chuo-ku, Kobe, Japan
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Mukai S, Itoi T, Sofuni A, Tsuchiya T, Ishii K, Tanaka R, Tonozuka R, Honjo M, Yamamoto K, Nagai K, Matsunami Y, Asai Y, Kurosawa T, Kojima H, Homma T, Minami H, Nagakawa Y. Urgent and early EUS-guided biliary drainage in patients with acute cholangitis. Endosc Ultrasound 2021; 10:191-199. [PMID: 33463555 PMCID: PMC8248306 DOI: 10.4103/eus.eus_70_20] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Background and Objectives: EUS-guided biliary drainage (EUS-BD) has been reported as an effective alternative drainage technique. However, clinical data on EUS-BD for patients with acute cholangitis (AC) are limited. The aim of this study was to analyze the clinical outcomes of EUS-BD in patients with AC. Patients and Methods: Nineteen patients with AC who underwent urgent or early drainage (within 96 h) by EUS-guided hepaticoenterostomy (EUS-HES) between January 2014 and November 2019 were retrospectively reviewed. Furthermore, the clinical outcomes of EUS-HES using a plastic stent in the AC group (n = 15) were compared to those in the non-AC group (n = 88). Results: In the 19 AC cases, the technical and clinical success rate was 100% with 5.3% of moderate adverse events (biliary peritonitis [n = 1]). Regarding the comparison between the AC group and the non-AC group, the clinical success rate was 100% in both groups and the adverse event rate was not statistically significantly different (P = 0.88). Although the recurrent biliary obstruction (RBO) rate was not statistically significantly different (P = 0.43), the early RBO rate was statistically significantly higher in the AC group (26.7% vs. 3.4%, P < 0.001). Kaplan–Meier curves showed that AC was associated with a shorter time to RBO (P = 0.046). The presence of AC was found to be an independent risk factor of early RBO (odds ratio = 10.3; P = 0.005). Conclusions: Urgent or early biliary drainage (within 96 h) by EUS-BD can be a feasible and safe alternative procedure for patients with AC, although there is a tendency of early RBO.
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Affiliation(s)
- Shuntaro Mukai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takao Itoi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Atsushi Sofuni
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takayoshi Tsuchiya
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Kentaro Ishii
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Reina Tanaka
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Ryosuke Tonozuka
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Mitsuyoshi Honjo
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Kenjiro Yamamoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Kazumasa Nagai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Yukitoshi Matsunami
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Yasutsugu Asai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takashi Kurosawa
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Hiroyuki Kojima
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Toshihiro Homma
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Hirohito Minami
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Yuichi Nagakawa
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan
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25
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Matsunami Y, Itoi T, Sofuni A, Tsuchiya T, Ishii K, Tanaka R, Tonozuka R, Honjo M, Mukai S, Nagai K, Yamamoto K, Asai Y, Kurosawa T, Kojima H, Joyama E, Nagakawa Y. EUS-guided hepaticoenterostomy with using a dedicated plastic stent for the benign pancreaticobiliary diseases: A single-center study of a large case series. Endosc Ultrasound 2021; 10:294-304. [PMID: 34259218 PMCID: PMC8411555 DOI: 10.4103/eus-d-20-00232] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Background and Objectives: EUS-guided biliary drainage (EUS-BD) has recently been used for the treatment of not only malignant pancreaticobiliary diseases, but also for benign diseases. In most previous studies, EUS-BD was performed using a fully covered self-expandable metallic stent (SEMS), and data focusing on the usability of plastic stents for benign diseases are limited. We previously developed a plastic stent dedicated to EUS-guided hepaticoenterostomy (EUS-HES), and achieved favorable results in a feasibility study, although most of the patients had malignant diseases. Therefore, the aim of the present study was to evaluate the usability of dedicated plastic stents for EUS-HES in patients with benign pancreaticobiliary diseases. Patients and Methods: A total of 57 consecutive patients (28 men, median age: 68 years; range: 7–90 years) of normal and surgically altered anatomy with benign pancreaticobiliary diseases who underwent EUS-HES using the dedicated plastic stent between Jan. 2015 and Jun. 2020 were retrospectively analyzed. Results: The overall technical success rate of EUS-HES was 92.9% (53/57). Among the 4 cases of technical failure of plastic stent placement, a SEMS was placed in 1; percutaneous transhepatic biliary drainage was performed in 1; EUS-HES was reperformed 1 week later in 1; and observational management was selected in 1 patient. Adverse events associated with the procedure were seen in 15.7% (9/57) of the patients, namely, biliary peritonitis in 4, bleeding in 2, cholecystitis in 2, and pneumoperitoneum in 1 patient. Except for 1 patient who required blood transfusion owing to bleeding and 1 patient with cholecystitis who required percutaneous transhepatic gallbladder drainage, the other 7 patients were treated by conservative therapy. There were no intervention-associated deaths. Conclusion: Our results demonstrated that for patients with benign pancreaticobiliary diseases in whom conventional ERCP was unsuccessful, EUS-HES using a dedicated plastic stent was safe and feasible.
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Affiliation(s)
- Yukitoshi Matsunami
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takao Itoi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Atsushi Sofuni
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takayoshi Tsuchiya
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Kentaro Ishii
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Reina Tanaka
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Ryosuke Tonozuka
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Mitsuyoshi Honjo
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Shuntaro Mukai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Kazumasa Nagai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Kenjiro Yamamoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Yasutsugu Asai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takashi Kurosawa
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Hiroyuki Kojima
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Eri Joyama
- Department of International Medical Care, Tokyo Medical University, Tokyo, Japan
| | - Yuichi Nagakawa
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan
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Yamaura K, Inui A, Mifune Y, Nishimoto H, Kataoka T, Kurosawa T, Mukohara S, Yoshikawa T, Niikura T, Kokubu T, Kuroda R. Anterior transolecranon fracture dislocation with an associated avulsion fracture of coronoid process of ulna in a child: a case report. JSES Int 2020; 5:9-12. [PMID: 33554156 PMCID: PMC7846680 DOI: 10.1016/j.jseint.2020.10.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Affiliation(s)
- Kohei Yamaura
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
- Corresponding author: Kohei Yamaura, MD, Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan.
| | - Atsuyuki Inui
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yutaka Mifune
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Hanako Nishimoto
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takeshi Kataoka
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takashi Kurosawa
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Shintaro Mukohara
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Tomoya Yoshikawa
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takahiro Niikura
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takeshi Kokubu
- Department of Orthopaedic Surgery, National Hospital Organization Kobe Medical Center, Kobe, Japan
| | - Ryosuke Kuroda
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
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Shimai S, Yamamoto K, Sofuni A, Tsuchiya T, Ishii K, Tanaka R, Tonozuka R, Honjo M, Mukai S, Fujita M, Nagai K, Asai Y, Matsunami Y, Kurosawa T, Kojima H, Honma H, Minami H, Yamaguchi H, Itoi T. Three Cases of Ampullary Neuroendocrine Tumor Treated by Endoscopic Papillectomy: A Case Report and Literature Review. Intern Med 2020; 59:2369-2374. [PMID: 32611953 PMCID: PMC7644498 DOI: 10.2169/internalmedicine.4568-20] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
We herein report three cases of patients with an ampullary neuroendocrine tumor (NET), who underwent endoscopic papillectomy (EP). No tumor recurrence or metastasis was detected in the patients for more than two years after EP. Generally, surgical resection is recommended for ampullary NETs by the European Neuroendocrine Tumor Society. However, as EP is less invasive than surgical resection, there are some reports of low-grade small ampullary NETs curatively treated by EP with long-term follow-up. We consider that EP may be a curative treatment for small and low-grade ampullary NETs without regional or distant metastasis.
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Affiliation(s)
- Satoshi Shimai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Kenjiro Yamamoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Atsushi Sofuni
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Takayoshi Tsuchiya
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Kentaro Ishii
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Reina Tanaka
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Ryosuke Tonozuka
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Mitsuyoshi Honjo
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Shuntaro Mukai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Mitsuru Fujita
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Kazumasa Nagai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Yasutsugu Asai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Yukitoshi Matsunami
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Takashi Kurosawa
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Hiroyuki Kojima
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Hirotoshi Honma
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Hiroto Minami
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | | | - Takao Itoi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
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Abstract
Aims The purpose of this study was to evaluate the in vitro effects of apocynin, an inhibitor of nicotinamide adenine dinucleotide phosphate oxidase (NOX) and a downregulator of intracellular reactive oxygen species (ROS), on high glucose-induced oxidative stress on tenocytes. Methods Tenocytes from normal Sprague-Dawley rats were cultured in both control and high-glucose conditions. Apocynin was added at cell seeding, dividing the tenocytes into four groups: the control group; regular glucose with apocynin (RG apo+); high glucose with apocynin (HG apo+); and high glucose without apocynin (HG apo–). Reactive oxygen species production, cell proliferation, apoptosis and messenger RNA (mRNA) expression of NOX1 and 4, and interleukin-6 (IL-6) were determined in vitro. Results Expression of NOX1, NOX4, and IL-6 mRNA in the HG groups was significantly higher compared with that in the RG groups, and NOX1, NOX4, and IL-6 mRNA expression in the HG apo+ group was significantly lower compared with that in the HG apo– group. Cell proliferation in the RG apo+ group was significantly higher than in the control group and was also significantly higher in the HG apo+ group than in the HG apo– group. Both the ROS accumulation and the amounts of apoptotic cells in the HG groups were greater than those in the RG groups and were significantly less in the HG apo+ group than in the HG apo– group. Conclusion Apocynin reduced ROS production and cell death via NOX inhibition in high-glucose conditions. Apocynin is therefore a potential prodrug in the treatment of diabetic tendinopathy. Cite this article:Bone Joint Res 2020;9(1):23–28.
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Affiliation(s)
- T Kurosawa
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Y Mifune
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - A Inui
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - H Nishimoto
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Y Ueda
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - T Kataoka
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - K Yamaura
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - S Mukohara
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - R Kuroda
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
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Wang Q, Horio M, von Arx K, Shen Y, John Mukkattukavil D, Sassa Y, Ivashko O, Matt CE, Pyon S, Takayama T, Takagi H, Kurosawa T, Momono N, Oda M, Adachi T, Haidar SM, Koike Y, Tseng Y, Zhang W, Zhao J, Kummer K, Garcia-Fernandez M, Zhou KJ, Christensen NB, Rønnow HM, Schmitt T, Chang J. High-Temperature Charge-Stripe Correlations in La_{1.675}Eu_{0.2}Sr_{0.125}CuO_{4}. Phys Rev Lett 2020; 124:187002. [PMID: 32441965 DOI: 10.1103/physrevlett.124.187002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 03/02/2020] [Accepted: 04/14/2020] [Indexed: 06/11/2023]
Abstract
We use resonant inelastic x-ray scattering to investigate charge-stripe correlations in La_{1.675}Eu_{0.2}Sr_{0.125}CuO_{4}. By differentiating elastic from inelastic scattering, it is demonstrated that charge-stripe correlations precede both the structural low-temperature tetragonal phase and the transport-defined pseudogap onset. The scattering peak amplitude from charge stripes decays approximately as T^{-2} towards our detection limit. The in-plane integrated intensity, however, remains roughly temperature independent. Therefore, although the incommensurability shows a remarkably large increase at high temperature, our results are interpreted via a single scattering constituent. In fact, direct comparison to other stripe-ordered compounds (La_{1.875}Ba_{0.125}CuO_{4}, La_{1.475}Nd_{0.4}Sr_{0.125}CuO_{4}, and La_{1.875}Sr_{0.125}CuO_{4}) suggests a roughly constant integrated scattering intensity across all these compounds. Our results therefore provide a unifying picture for the charge-stripe ordering in La-based cuprates. As charge correlations in La_{1.675}Eu_{0.2}Sr_{0.125}CuO_{4} extend beyond the low-temperature tetragonal and pseudogap phase, their emergence heralds a spontaneous symmetry breaking in this compound.
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Affiliation(s)
- Qisi Wang
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
| | - M Horio
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
| | - K von Arx
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
| | - Y Shen
- State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China
| | - D John Mukkattukavil
- Department of Physics and Astronomy, Uppsala University, Box 516, SE-751 20 Uppsala, Sweden
| | - Y Sassa
- Department of Physics, Chalmers University of Technology, SE-412 96 Göteborg, Sweden
| | - O Ivashko
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
| | - C E Matt
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
- Swiss Light Source, Photon Science Division, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - S Pyon
- Department of Advanced Materials, University of Tokyo, Kashiwa 277-8561, Japan
| | - T Takayama
- Department of Advanced Materials, University of Tokyo, Kashiwa 277-8561, Japan
| | - H Takagi
- Department of Advanced Materials, University of Tokyo, Kashiwa 277-8561, Japan
| | - T Kurosawa
- Department of Physics, Hokkaido University, Sapporo 060-0810, Japan
| | - N Momono
- Department of Physics, Hokkaido University, Sapporo 060-0810, Japan
- Department of Applied Sciences, Muroran Institute of Technology, Muroran 050-8585, Japan
| | - M Oda
- Department of Physics, Hokkaido University, Sapporo 060-0810, Japan
| | - T Adachi
- Department of Engineering and Applied Sciences, Sophia University, Tokyo 102-8554, Japan
| | - S M Haidar
- Department of Applied Physics, Tohoku University, Sendai 980-8579, Japan
| | - Y Koike
- Department of Applied Physics, Tohoku University, Sendai 980-8579, Japan
| | - Y Tseng
- Swiss Light Source, Photon Science Division, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - W Zhang
- Swiss Light Source, Photon Science Division, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - J Zhao
- State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China
- Collaborative Innovation Center of Advanced Microstructures, Nanjing 210093, China
| | - K Kummer
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38043 Grenoble, France
| | - M Garcia-Fernandez
- Diamond Light Source, Harwell Campus, Didcot, Oxfordshire OX11 0DE, United Kingdom
| | - Ke-Jin Zhou
- Diamond Light Source, Harwell Campus, Didcot, Oxfordshire OX11 0DE, United Kingdom
| | - N B Christensen
- Department of Physics, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark
| | - H M Rønnow
- Institute of Physics, École Polytechnique Fedérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - T Schmitt
- Swiss Light Source, Photon Science Division, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - J Chang
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
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Nobukane H, Tabata Y, Kurosawa T, Sakabe D, Tanda S. Coexistence of the Kondo effect and spin glass physics in Fe-doped NbS 2. J Phys Condens Matter 2020; 32:165803. [PMID: 31842001 DOI: 10.1088/1361-648x/ab622a] [Citation(s) in RCA: 2] [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] [Indexed: 06/10/2023]
Abstract
We report the coexistence of the Kondo effect and spin glass behavior in Fe-doped NbS2 single crystals. The Fe x NbS2 shows the resistance minimum and negative magnetoresistance due to the Kondo effect, and exhibits no superconducting behavior at low temperatures. The resistance curve follows a numerical renormalization-group theory using the Kondo temperature [Formula: see text] K for x = 0.01 as evidence of Kondo effect. Scanning tunneling microscope/spectroscopy (STM/STS) revealed the presence of Fe atoms near sulfur atoms and asymmetric spectra. The magnetic susceptibility exhibits a feature of spin glass. The static critical exponents determined by the universal scaling of the nonlinear part of the susceptibility suggest a three-dimensional Heisenberg spin glass. The doped-Fe atoms in the intra- and inter-layers revealed by the x-ray result can realize the coexistence of the Kondo effect and spin glass.
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Affiliation(s)
- H Nobukane
- Department of Physics, Hokkaido University, Sapporo, 060-0810, Japan. Center of Education and Research for Topological Science and Technology, Hokkaido University, Sapporo, 060-8628, Japan
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31
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Mifune Y, Inui A, Nishimoto H, Kataoka T, Kurosawa T, Yamaura K, Mukohara S, Niikura T, Kokubu T, Akisue T, Kuroda R. Assessment of posterior shoulder muscle stiffness related to posterior shoulder tightness in college baseball players using shear wave elastography. J Shoulder Elbow Surg 2020; 29:571-577. [PMID: 31495703 DOI: 10.1016/j.jse.2019.05.028] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 05/21/2019] [Accepted: 05/28/2019] [Indexed: 02/01/2023]
Abstract
BACKGROUND Limitations of shoulder range of motion (ROM) have been reported to be at high risk for shoulder disorders in baseball players. In this study, we assessed posterior shoulder muscle stiffness using shear wave elastography in baseball players with and without posterior shoulder tightness. MATERIALS AND METHODS In total, 21 college baseball players volunteered to participate in this study. Passive ROMs for shoulder abduction and horizontal adduction were measured using a goniometer. Subsequently, we divided all participants into 2 groups based on the differences between bilateral shoulder ROMs: STIFF+ and STIFF- groups. Thickness and elasticity of the posterior and inferior shoulder muscles were assessed using ultrasound. RESULTS Shoulder abduction ROM on the throwing side was 114.5° ± 5.3° and 131.3° ± 5.7° in the STIFF+ and STIFF- groups, respectively, which was significantly different between the 2 groups (P = .023). Horizontal adduction ROM on the throwing side was 96.6° ± 4.9° and 110.9° ± 4.8° in the STIFF+ and STIFF- groups, respectively, which was also significantly different between the 2 groups (P = .014). The elasticity of infraspinatus and lower trapezius in the STIFF+ group was significantly greater than that in the STIFF- group (P = .018 and .033, respectively). DISCUSSION In this study, we found that the elasticity of infraspinatus and lower trapezius in stiff shoulders was significantly greater than that in nonstiff shoulders, which indicated that the infraspinatus and lower trapezius could be the key muscles in posterior shoulder tightness.
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Affiliation(s)
- Yutaka Mifune
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan.
| | - Atsuyuki Inui
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Hanako Nishimoto
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takeshi Kataoka
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takashi Kurosawa
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Kohei Yamaura
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Shintaro Mukohara
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takahiro Niikura
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takeshi Kokubu
- Department of Orthopaedic Surgery, Shin-Suma General Hospital, Kobe, Japan
| | | | - Ryosuke Kuroda
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
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Sofuni A, Fujita M, Asai Y, Tsuchiya T, Ishii K, Tanaka R, Tonozuka R, Honjo M, Mukai S, Nagai K, Yamamoto K, Matsunami Y, Kurosawa T, Kojima H, Itoi T. A Case of Unresectable Pancreatic Cancer with Long-Term Survival in High-Intensity Focused Ultrasound (HIFU) Therapy. Ultrasound Int Open 2020; 5:E89-E92. [PMID: 31922085 PMCID: PMC6949166 DOI: 10.1055/a-1061-7790] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Atsushi Sofuni
- Department of Gastroenterology and Hepatology, Tokyo, Japan
| | - Mitsuru Fujita
- Department of Gastroenterology and Hepatology, Tokyo, Japan
| | - Yasutsugu Asai
- Department of Gastroenterology and Hepatology, Tokyo, Japan
| | | | - Kentaro Ishii
- Department of Gastroenterology and Hepatology, Tokyo, Japan
| | - Reina Tanaka
- Department of Gastroenterology and Hepatology, Tokyo, Japan
| | | | | | - Shuntaro Mukai
- Department of Gastroenterology and Hepatology, Tokyo, Japan
| | - Kazumasa Nagai
- Department of Gastroenterology and Hepatology, Tokyo, Japan
| | | | | | | | | | - Takao Itoi
- Department of Gastroenterology and Hepatology, Tokyo, Japan
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Fukunishi Y, Mashimo T, Kurosawa T, Wakabayashi Y, Nakamura HK, Takeuchi K. Prediction of Passive Membrane Permeability by Semi-Empirical Method Considering Viscous and Inertial Resistances and Different Rates of Conformational Change and Diffusion. Mol Inform 2020; 39:e1900071. [PMID: 31609549 PMCID: PMC7050510 DOI: 10.1002/minf.201900071] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 09/22/2019] [Indexed: 12/24/2022]
Abstract
Membrane permeability is an important property of drugs in adsorption. Many prediction methods work well for small molecules, but the prediction of middle-molecule permeability is still difficult. In the present study, we modified a classical permeability model based on Fick's law to study passive membrane permeability. The model consisted of the distribution of solute from water to membrane and the diffusion of solute in each solvent. The diffusion coefficient is the inverse of the resistance, and we examined the inertial resistance in addition to the viscous resistance, the latter of which has been widely used in permeability prediction. Also, we examined three models changing the balance between the diffusion of solute in membrane and the conformational change of solute. The inertial resistance improved the prediction results in addition to the viscous resistance. The models worked well not only for small molecules but also for middle molecules, whose structures have more conformational freedom.
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Affiliation(s)
- Yoshifumi Fukunishi
- Molecular Profiling Research Center for Drug Discovery (molprof)National Institute of Advanced Industrial Science and Technology (AIST)2-3-26, Aomi, Koto-kuTokyo135-0064Japan
| | - Tadaaki Mashimo
- Technology Research Association for Next-Generation Natural Products Chemistry2-3-26, Aomi, Koto-kuTokyo135-0064Japan
- IMSBIO Co., Ltd.Owl Tower, 4–21-1, Higashi-Ikebukuro, Toshima-kuTokyo170-0013Japan
| | - Takashi Kurosawa
- Technology Research Association for Next-Generation Natural Products Chemistry2-3-26, Aomi, Koto-kuTokyo135-0064Japan
- Hitachi Solutions East Japan, 12–1 Ekimaehoncho, Kawasaki-ku, KawasakiKanagawa210-0007Japan
| | | | - Hironori K. Nakamura
- Biomodeling Research Co., Ltd.1-704-2 Uedanishi, Tenpaku-ku, NagoyaAichi468-0058Japan
| | - Koh Takeuchi
- Molecular Profiling Research Center for Drug Discovery (molprof)National Institute of Advanced Industrial Science and Technology (AIST)2-3-26, Aomi, Koto-kuTokyo135-0064Japan
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Mifune Y, Inui A, Muto T, Nishimoto H, Kataoka T, Kurosawa T, Yamaura K, Mukohara S, Niikura T, Kokubu T, Kuroda R. Influence of advanced glycation end products on rotator cuff. J Shoulder Elbow Surg 2019; 28:1490-1496. [PMID: 30981546 DOI: 10.1016/j.jse.2019.01.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 01/13/2019] [Accepted: 01/21/2019] [Indexed: 02/01/2023]
Abstract
BACKGROUND Most rotator cuff tears are the result of age-related degenerative changes, but the mechanisms underlying these changes have not been reported. Recently, advanced glycation end products (AGEs) have been regarded as an important factor in senescence. Therefore, we hypothesized that AGEs would have detrimental effects on rotator cuff-derived cells. In this study, we investigated the influence of AGEs on rotator cuff-derived cells in vitro and ex vivo. METHODS Rotator cuff-derived cells were obtained from human supraspinatus tendons. The cells were cultured in the following media: (1) regular medium with 500 μg/mL AGEs (High-AGEs), (2) regular medium with 100 μg/mL AGEs (Low-AGEs), and (3) regular medium alone (Control). Cell viability, secretion of vascular endothelial growth factor, and the expressions of hypoxia-inducible factor-1α, reactive oxygen species, and apoptosis were assessed after cultivation. An ex vivo tissue culture with AGEs was also performed to measure the tensile strength. RESULTS Cell viability in the High-AGEs group was significantly suppressed relative to that in the Controls. The amount of vascular endothelial growth factor secretion was significantly greater in the High- and Low-AGEs groups than in the Controls. Immunofluorescence stain demonstrated enhancement of hypoxia-inducible factor-1α and reactive oxygen species expressions and cell apoptosis in the High- and Low-AGEs groups relative to that in the Controls. In ex vivo mechanical testing, tensile strength was significantly higher in the Control group than in the AGEs groups. DISCUSSION These results indicated that AGEs caused age-related degenerative rotator cuff changes. The reduction of AGEs might prevent rotator cuff senescence-related degeneration.
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Affiliation(s)
- Yutaka Mifune
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan.
| | - Atsuyuki Inui
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Tomoyuki Muto
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Hanako Nishimoto
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takeshi Kataoka
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takashi Kurosawa
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Kohei Yamaura
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Shintaro Mukohara
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takahiro Niikura
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takeshi Kokubu
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Ryosuke Kuroda
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
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Ueda Y, Inui A, Mifune Y, Takase F, Kataoka T, Kurosawa T, Yamaura K, Kokubu T, Kuroda R. Molecular changes to tendons after collagenase-induced acute tendon injury in a senescence-accelerated mouse model. BMC Musculoskelet Disord 2019; 20:120. [PMID: 30902076 PMCID: PMC6429773 DOI: 10.1186/s12891-019-2488-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Accepted: 03/04/2019] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Aging impairs tendon healing and is a potential risk factor for chronic tendinitis. During normal aging, tendons undergo structural and biomechanical degenerative changes, accompanied by a reduction in the number of tenocytes and changes to their properties. However, molecular changes in aged tendons under inflammatory conditions are not well understood. The present study analyzed the molecular changes in collagenase induced acute tendon injury using a senescence-accelerated mouse (SAM) model. METHODS SAMP6 mice were used as an aging animal model and SAMR1 mice were used as a control to represent a senescence-resistant inbred strain. All the mice used in the study were 40 weeks old. Collagenase I from Clostridium histolyticum (20 μL) was injected percutaneously to the tendon-bone junction of the Achilles tendon. Two weeks after treatment, the Achilles tendons were harvested and stained using Picrosirius Red to determine collagen expression. Real-time PCR was performed to analyze gene expression of IL-6, tenomodulin, type I and type II collagen, MMP-9, TIMP-1, and TIMP-2. RESULTS Collagenase injection resulted in significantly higher gene expression of IL-6 but significantly lower tenomodulin expression compared with the control in SAMP6 and SAMR1 mice. In SAMP6 mice, gene expression of type III collagen and MMP-9 was significantly higher in the collagenase-injected group compared with the control group. SAMP6 mice also showed lower expression of type I collagen, TIMP-1, and TIMP-2 in the collagenase-injected group compared with the control group. Picrosirius Red staining showed the highest expression of type III collagen in the collagenase-injected SAMP6 group compared with the other groups. CONCLUSIONS The collagenase-injected SAMP6 group showed higher expression of IL-6, MMP-9, and type III collagen and lower expression of type I collagen, TIMP-1, and TIMP-2, which are known to suppress metalloproteinases. The results indicate that aging may lead to dysfunction of the tendon healing process after acute tendon injury.
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Affiliation(s)
- Yasuhiro Ueda
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, chuo-ku, Kobe, 650-0017, Japan
| | - Atsuyuki Inui
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, chuo-ku, Kobe, 650-0017, Japan
| | - Yutaka Mifune
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, chuo-ku, Kobe, 650-0017, Japan.
| | - Fumiaki Takase
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, chuo-ku, Kobe, 650-0017, Japan
| | - Takeshi Kataoka
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, chuo-ku, Kobe, 650-0017, Japan
| | - Takashi Kurosawa
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, chuo-ku, Kobe, 650-0017, Japan
| | - Kohei Yamaura
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, chuo-ku, Kobe, 650-0017, Japan
| | - Takeshi Kokubu
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, chuo-ku, Kobe, 650-0017, Japan
| | - Ryosuke Kuroda
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, chuo-ku, Kobe, 650-0017, Japan
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Tonozuka R, Itoi T, Sofuni A, Tsuchiya T, Ishii K, Tanaka R, Honjo M, Mukai S, Yamamoto K, Fujita M, Asai Y, Mastunami Y, Kurosawa T, Kojima H, Kogure H, Nagakawa Y. Novel peroral direct digital cholangioscopy-assisted lithotripsy using a monorail technique through the overtube in patients with surgically altered anatomy (with video). Dig Endosc 2019; 31:203-208. [PMID: 30506597 DOI: 10.1111/den.13310] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 11/26/2018] [Indexed: 12/12/2022]
Abstract
Efficacy of cholangioscopy-assisted lithotripsy for difficult stones such as huge stones, multiple large stones and an impacted stone in patients with non-altered anatomy has been reported. Herein, we describe peroral direct digital cholangioscopy (PDCS)-assisted electrohydraulic lithotripsy (EHL) with a new technique in patients with surgically altered anatomy. Five patients received PDCS-assisted EHL with the monorail technique due to failed conventional stone extraction. Balloon enteroscope was removed, leaving the stiff guidewire in the bile duct and an overtube with inflated balloons. The cholangioscope was then inserted into the bile duct over the wire through the overtube. After direct visualization of the stone, PDCS-assisted EHL was carried out. This technique was named the 'monorail technique'. Complete removal of biliary stones in one session was accomplished in four patients and only one case required two sessions. There was no adverse event in any of the cases. PDCS-assisted EHL using the monorail technique was effective and safe for difficult biliary stones in patients with surgically altered anatomy.
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Affiliation(s)
- Ryosuke Tonozuka
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takao Itoi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Atsushi Sofuni
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takayoshi Tsuchiya
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Kentaro Ishii
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Reina Tanaka
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Mitsuyoshi Honjo
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Shuntaro Mukai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Kenjiro Yamamoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Mitsuru Fujita
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Yasutsugu Asai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Yukitoshi Mastunami
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takashi Kurosawa
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Hiroyuki Kojima
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Hirofumi Kogure
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yuichi Nagakawa
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan
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Yamamoto K, Itoi T, Sofuni A, Tsuchiya T, Tanaka R, Tonozuka R, Honjo M, Mukai S, Fujita M, Asai Y, Matsunami Y, Kurosawa T, Yamaguchi H, Nagakawa Y. Expanding the indication of endoscopic papillectomy for T1a ampullary carcinoma. Dig Endosc 2019; 31:188-196. [PMID: 30161275 DOI: 10.1111/den.13265] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 08/22/2018] [Indexed: 12/23/2022]
Abstract
BACKGROUND AND AIM Endoscopic papillectomy (EP) has been attempted not only for benign lesions but also for early ampullary carcinoma (AC). However, there is still no sufficient evidence or consensus regarding the effectiveness of EP for early AC. Herein, we evaluated the expanding indication of EP for early AC. METHODS Between May 1999 and December 2016, 177 patients were diagnosed with ampullary tumor before undergoing EP, and their clinical and histopathological data were analyzed retrospectively. RESULTS There were 27 Tis-T1a AC patients and four T1b AC patients who underwent EP. Mean tumor size was 14.1 mm for Tis-T1a AC and 17.0 mm for T1b AC. For the histological grade, 50% (2/4) of T1b AC were moderately differentiated, whereas 96.3% (26/27) of Tis-T1a AC were well differentiated and papillary. For lymphovascular invasion, one (25%) occurred in T1b AC but none occurred in Tis-T1a AC. There was no AC recurrence from the date of EP until a maximum of 5 years (Tis-T1a: mean period 48.5 months [5-60]; T1b: mean period 26.5 months [3-60]). CONCLUSIONS Endoscopic papillectomy is useful and reliable for the curative treatment of T1a AC. Large-scale prospective studies with long-term follow up are needed.
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Affiliation(s)
- Kenjiro Yamamoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takao Itoi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Atsushi Sofuni
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takayoshi Tsuchiya
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Reina Tanaka
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Ryosuke Tonozuka
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Mitsuyoshi Honjo
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Shuntaro Mukai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Mitsuru Fujita
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Yasutsugu Asai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Yukitoshi Matsunami
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takashi Kurosawa
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | | | - Yuichi Nagakawa
- Third Department of Surgery, Tokyo Medical University, Tokyo, Japan
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Tonozuka R, Yunoki S, Itoi T, Sofuni A, Tsuchiya T, Ishii K, Tanaka R, Honjo M, Mukai S, Fujita M, Yamamoto K, Asai Y, Matsunami Y, Kurosawa T, Kojima H, Nagakawa Y, Nagakawa Y. Ex vivo assessment of anchoring force of covered biflanged metal stent and covered self-expandable metal stent for interventional endoscopic ultrasound. J Gastroenterol Hepatol 2019; 34:194-201. [PMID: 29871029 DOI: 10.1111/jgh.14307] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 05/08/2018] [Accepted: 05/29/2018] [Indexed: 12/09/2022]
Abstract
BACKGROUND AND AIMS Endoscopic ultrasound (EUS)-guided transmural drainage using a covered biflanged metal stent (CBFMS) and a conventional tubular biliary covered self-expandable metal stent (CSEMS) has recently been performed by EUS experts. However, appropriate traction force of the sheath to prevent the migration during stent deployment is well unknown. Herein, we assessed the anchoring force (AF) of the distal flange in CBFMSs and CSEMSs. METHODS The AFs of four CBFMSs (Stents AX, NG, PL, and SX) and six CSEMSs (Stents BF, BP, EG, HN, SP, and WF) were compared in an ex vivo setting. We assessed the AF produced by each stent using an EUS-guided transmural drainage model and an EUS-guided hepaticogastrostomy model consisting of sheet-shaped specimens of the stomach, gelatin gel, and gelatin tubes. RESULTS For CBFMSs, the maximum AF of Stent AX was significantly higher than those of Stents PL and SX (P < 0.05) in the porcine model. In the gelatin series, all stents except Stent NG showed a nearly similar AF. For CSEMSs, Stents HN, EG, BF, and WF showed gradual AF elevation in the porcine stomach. Stents SP and BP showed a lower AF than the other four stents. For the gelatin setting, the maximum AF of Stents HN, EG, and WF was higher than those of the other stents regardless of the type of specimens. CONCLUSIONS The significance of the AF and traction distance according to the property of various CBFMSs and CSEMSs could be elucidated using ex vivo models.
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Affiliation(s)
- Ryosuke Tonozuka
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Shunji Yunoki
- Tokyo Metropolitan Industrial Technology Research Institute, Tokyo, Japan
| | - Takao Itoi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Atsushi Sofuni
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takayoshi Tsuchiya
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Kentaro Ishii
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Reina Tanaka
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Mitsuyoshi Honjo
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Shuntaro Mukai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Mitsuru Fujita
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Kenjiro Yamamoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Yasutsugu Asai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Yukitoshi Matsunami
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takashi Kurosawa
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Hiroyuki Kojima
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Yuichi Nagakawa
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan
| | - Yoshiyasu Nagakawa
- Tokyo Metropolitan Industrial Technology Research Institute, Tokyo, Japan
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Mukai S, Itoi T, Yamaguchi H, Sofuni A, Tsuchiya T, Tanaka R, Tonozuka R, Honjo M, Fujita M, Yamamoto K, Matsunami Y, Asai Y, Kurosawa T, Nagakawa Y. A retrospective histological comparison of EUS-guided fine-needle biopsy using a novel franseen needle and a conventional end-cut type needle. Endosc Ultrasound 2019; 8:50-57. [PMID: 29786033 PMCID: PMC6400082 DOI: 10.4103/eus.eus_11_18] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Background and Objectives: Recently, a 22G Franseen needle for EUS-guided fine-needle biopsy (EUS-FNB) with three novel symmetric heels has been developed to adequately obtain a core tissue. Methods: All 38 consecutive patients with pancreatic masses who underwent EUS-FNB using a Franseen needle were investigated retrospectively to assess the efficacy and safety of EUS-FNB using the Franseen needle. Then, the EUS-FNB outcomes and histological assessments of the tissue obtained by EUS-FNB using the Franseen needle and EUS-FNA using the conventional end-cut type needle for each of the 30 pancreatic ductal adenocarcinoma cases were compared. Results: An accurate histological diagnosis of the Franseen needle was achieved with a mean of 2 passes in 97.4% of patients. Although the accurate histological diagnosis rate of pancreatic ductal adenocarcinoma was not significantly different (96.7% vs. 93.3%, P = 0.55), the mean number of passes in the Franseen needle was significantly less than that in the conventional needle (2.1 ± 0.4 vs. 3.2 ± 0.8, P < 0.001). The presence of desmoplastic fibrosis with neoplastic cellular elements and venous invasion were significantly higher (96.7% vs. 40.0%, P < 0.001 and 23.3% vs. 0%, P < 0.01, respectively) and the amount of obtained tissue was significantly larger with the Franseen needle (2.13 mm2vs. 0.45 mm2, P < 0.001). Conclusions: EUS-FNB using the Franseen needle enables the acquisition of a larger amount of tissue sample and achieves an accurate histological diagnosis with a smaller number of passes than the conventional end-cut type needle.
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Affiliation(s)
- Shuntaro Mukai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takao Itoi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Hiroshi Yamaguchi
- Division of Diagnostic Pathology, Tokyo Medical University, Tokyo, Japan
| | - Atsushi Sofuni
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takayoshi Tsuchiya
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Reina Tanaka
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Ryosuke Tonozuka
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Mitsuyoshi Honjo
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Mitsuru Fujita
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Kenjiro Yamamoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Yukitoshi Matsunami
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Yasutsugu Asai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takashi Kurosawa
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Yuichi Nagakawa
- Third Department of Surgery, Tokyo Medical University, Tokyo, Japan
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Kataoka T, Kokubu T, Muto T, Mifune Y, Inui A, Sakata R, Nishimoto H, Harada Y, Takase F, Ueda Y, Kurosawa T, Yamaura K, Kuroda R. Rotator cuff tear healing process with graft augmentation of fascia lata in a rabbit model. J Orthop Surg Res 2018; 13:200. [PMID: 30103783 PMCID: PMC6090682 DOI: 10.1186/s13018-018-0900-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 07/26/2018] [Indexed: 12/16/2022] Open
Abstract
Background Fascia lata augmentation of massive rotator cuff tears has shown good clinical results. However, its biological effect during the early healing process is not clearly understood. The purpose of the study was to evaluate the biological efficacy of fascia lata augmentation during the early healing process of rotator cuff tears using a rabbit rotator cuff defect model. Methods The infraspinatus tendon was resected from the greater tuberosity of a rabbit to create a rotator cuff tear. The tendon edge was directly sutured to the humeral head. The rotator cuff repaired site was augmented with a fascia lata autograft (augmentation group, group A). The rotator cuff defect in the contralateral shoulder was repaired without augmentation (reattachment group, group R). A group with intact rotator cuff was set as the control group. Histological examinations and mechanical analysis were conducted 4 and 8 weeks postoperatively. Results In the HE staining, the tendon maturing score of group A was higher than that of group R at 4 weeks postoperatively. In the safranin O staining, proteoglycan staining at the repaired enthesis in group A at 4 weeks postoperatively was stronger than that in group R. Picrosirius red staining showed that type III and type I collagen in group A was more strongly expressed than that in group R at 4 weeks postoperatively. The ultimate failure load of the infraspinatus tendon–humeral head complex in group A was statistically higher than that in group R at 4 weeks postoperatively. The ultimate failure load of group A was similar to that of the control group. Conclusion The biological and mechanical contribution of fascia lata augmentation for massive rotator cuff tears was analyzed in this study. Type III collagen was reported to be expressed during the tendon healing process. Although the biological action similar to natural ligament healing occurred around the fascia lata grafts, type III collagen was gradually replaced by type I collagen as the tissue matured. Our results suggest that fascia lata augmentation could stimulate biological healing and provide initial fixation strength of the repaired rotator cuff.
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Affiliation(s)
- Takeshi Kataoka
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Takeshi Kokubu
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Tomoyuki Muto
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Yutaka Mifune
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan.
| | - Atsuyuki Inui
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Ryosuke Sakata
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Hanako Nishimoto
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Yoshifumi Harada
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Fumiaki Takase
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Yasuhiro Ueda
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Takashi Kurosawa
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Kohei Yamaura
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Ryosuke Kuroda
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
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Matsunami Y, Itoi T, Sofuni A, Tsuchiya T, Kamada K, Tanaka R, Tonozuka R, Honjo M, Mukai S, Fujita M, Yamamoto K, Asai Y, Kurosawa T, Tachibana S, Nagakawa Y. Evaluation of a new stent for EUS-guided pancreatic duct drainage: long-term follow-up outcome. Endosc Int Open 2018; 6:E505-E512. [PMID: 29713675 PMCID: PMC5906111 DOI: 10.1055/s-0044-101753] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Accepted: 12/01/2017] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND AND STUDY AIMS Endoscopic ultrasonography-guided pancreatic duct drainage (EUS-PD) has been reported as an alternative for failed conventional endoscopic retrograde cholangiopancreatography (ERCP). However, there are few dedicated devices for EUS-PD. Recently, we have developed a new plastic stent dedicated to EUS-PD and have conducted a feasibility study to evaluate its efficacy. In the current study, we evaluated the long-term efficacy of this new plastic stent. PATIENTS AND METHODS Thirty patients (61 ± 14.3 years old, 14 men) with acute recurrent pancreatitis caused by a stricture in the main pancreatic duct (MPD) or stenotic pancreatoenterostomy were treated at our institution using our recently developed 7Fr plastic stent between August 2013 and April 2017. RESULTS The stent was placed successfully in all patients (30/30) and early clinical success was achieved in all of them. Early adverse events (AEs) occurred in seven patients (23.3 %), namely, self-limited abdominal pain (n = 5), mild pancreatitis (n = 1), and bleeding which required transcatheter arterial embolization (n = 1). Two patients died of primary disease and three were lost to follow-up. The remaining 25 patients were followed up after initial EUS-PD for a median of 23 months (range, 6 - 44 months). Twenty patients required regular stent exchange (3 times; range, 1 - 12 times). Spontaneous stent dislodgement was observed in six patients. Four patients wanted their stents removed 1 year after the initial intervention. Twelve patients (48 %) had regular stent exchange 1 year after the initial intervention. Three patients converted to standard transpapillary pancreatic duct stenting by conventional ERCP. Finally, nine patients (36 %) had complete stent removal either intentionally or by spontaneous dislodgement without any symptoms. CONCLUSION The new plastic stent for EUS-PD was associated with not only short-term technical success but also long-term clinical success in the majority of patients evaluated in this study.
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Affiliation(s)
- Yukitoshi Matsunami
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takao Itoi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan,Corresponding author Takao Itoi, MD, PhD, FASGE Department of Gastroenterology and HepatologyTokyo Medical University6-7-1 Nishishinjuku, Shinjuku-kuTokyo 160-0023, Japan+81-3-5381-6654
| | - Atsushi Sofuni
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takayoshi Tsuchiya
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Kentaro Kamada
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Reina Tanaka
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Ryosuke Tonozuka
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Mitsuyoshi Honjo
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Shuntaro Mukai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Mitsuru Fujita
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Kenjiro Yamamoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Yasutsugu Asai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takashi Kurosawa
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Shingo Tachibana
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan
| | - Yuichi Nagakawa
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan
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Matt CE, Sutter D, Cook AM, Sassa Y, Månsson M, Tjernberg O, Das L, Horio M, Destraz D, Fatuzzo CG, Hauser K, Shi M, Kobayashi M, Strocov VN, Schmitt T, Dudin P, Hoesch M, Pyon S, Takayama T, Takagi H, Lipscombe OJ, Hayden SM, Kurosawa T, Momono N, Oda M, Neupert T, Chang J. Direct observation of orbital hybridisation in a cuprate superconductor. Nat Commun 2018; 9:972. [PMID: 29511188 PMCID: PMC5840306 DOI: 10.1038/s41467-018-03266-0] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Accepted: 02/01/2018] [Indexed: 11/19/2022] Open
Abstract
The minimal ingredients to explain the essential physics of layered copper-oxide (cuprates) materials remains heavily debated. Effective low-energy single-band models of the copper–oxygen orbitals are widely used because there exists no strong experimental evidence supporting multi-band structures. Here, we report angle-resolved photoelectron spectroscopy experiments on La-based cuprates that provide direct observation of a two-band structure. This electronic structure, qualitatively consistent with density functional theory, is parametrised by a two-orbital (\documentclass[12pt]{minimal}
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\begin{document}$$d_{z^2}$$\end{document}dz2) tight-binding model. We quantify the orbital hybridisation which provides an explanation for the Fermi surface topology and the proximity of the van-Hove singularity to the Fermi level. Our analysis leads to a unification of electronic hopping parameters for single-layer cuprates and we conclude that hybridisation, restraining d-wave pairing, is an important optimisation element for superconductivity. The essential physics of cuprate superconductors is often described by single-band models. Here, Matt et al. report direct observation of a two-band electronic structure in La-based cuprates.
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Affiliation(s)
- C E Matt
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057, Zürich, Switzerland. .,Swiss Light Source, Paul Scherrer Institut, CH-5232, Villigen PSI, Switzerland.
| | - D Sutter
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057, Zürich, Switzerland
| | - A M Cook
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057, Zürich, Switzerland
| | - Y Sassa
- Department of Physics and Astronomy, Uppsala University, SE-75121, Uppsala, Sweden
| | - M Månsson
- Materials Physics, KTH Royal Institute of Technology, SE-164 40, Kista, Stockholm, Sweden
| | - O Tjernberg
- Materials Physics, KTH Royal Institute of Technology, SE-164 40, Kista, Stockholm, Sweden
| | - L Das
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057, Zürich, Switzerland
| | - M Horio
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057, Zürich, Switzerland
| | - D Destraz
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057, Zürich, Switzerland
| | - C G Fatuzzo
- Institute of Physics, École Polytechnique Fedérale de Lausanne (EPFL), Lausanne, CH-1015, Switzerland
| | - K Hauser
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057, Zürich, Switzerland
| | - M Shi
- Swiss Light Source, Paul Scherrer Institut, CH-5232, Villigen PSI, Switzerland
| | - M Kobayashi
- Swiss Light Source, Paul Scherrer Institut, CH-5232, Villigen PSI, Switzerland
| | - V N Strocov
- Swiss Light Source, Paul Scherrer Institut, CH-5232, Villigen PSI, Switzerland
| | - T Schmitt
- Swiss Light Source, Paul Scherrer Institut, CH-5232, Villigen PSI, Switzerland
| | - P Dudin
- Diamond Light Source, Harwell Campus, Didcot, OX11 0DE, UK
| | - M Hoesch
- Diamond Light Source, Harwell Campus, Didcot, OX11 0DE, UK
| | - S Pyon
- Department of Advanced Materials, University of Tokyo, Kashiwa, 277-8561, Japan
| | - T Takayama
- Department of Advanced Materials, University of Tokyo, Kashiwa, 277-8561, Japan
| | - H Takagi
- Department of Advanced Materials, University of Tokyo, Kashiwa, 277-8561, Japan
| | - O J Lipscombe
- H. H. Wills Physics Laboratory, University of Bristol, Bristol, BS8 1TL, UK
| | - S M Hayden
- H. H. Wills Physics Laboratory, University of Bristol, Bristol, BS8 1TL, UK
| | - T Kurosawa
- Department of Physics, Hokkaido University, Sapporo, 060-0810, Japan
| | - N Momono
- Department of Physics, Hokkaido University, Sapporo, 060-0810, Japan.,Department of Applied Sciences, Muroran Institute of Technology, Muroran, 050-8585, Japan
| | - M Oda
- Department of Physics, Hokkaido University, Sapporo, 060-0810, Japan
| | - T Neupert
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057, Zürich, Switzerland
| | - J Chang
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057, Zürich, Switzerland.
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Yamamoto K, Itoi T, Tsuchiya T, Tanaka R, Tonozuka R, Honjo M, Mukai S, Fujita M, Asai Y, Matsunami Y, Kurosawa T, Sofuni A, Nagakawa Y. EUS-guided antegrade metal stenting with hepaticoenterostomy using a dedicated plastic stent with a review of the literature (with video). Endosc Ultrasound 2018; 7:404-412. [PMID: 30531024 PMCID: PMC6289013 DOI: 10.4103/eus.eus_51_18] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Background and Objectives: Recently, a novel EUS-guided biliary drainage (EUS-BD) technique consisting of EUS-guided antegrade stenting and EUS-guided hepaticoenterostomy (EUS-AS+HES) using two conventional metal stents (MS) has been reported to decrease adverse events and maintain longer stent patency for malignant biliary obstruction (MBO). However, only a few limited reports have evaluated this technique. Finally, dedicated plastic stents (PSs) have been developed to perform EUS-HES safely. The aim of the present study was to evaluate the outcome in EUS-AS+HES for MBO using the dedicated HES PSs. Methods: The results of a total of 23 patients who underwent EUS-AS+HES (18 simultaneous cases and 5 sequential cases) for MBO from October 2014 to July 2017 were retrospectively reviewed. Results: Technical and clinical success rates were 100% (23/23). Adverse events were seen in 8.7% (2/23); 2 cases of mild biliary peritonitis, which were successfully managed conservatively. Overall survival was 96 days and the median duration of stent patency, including stent dysfunction, patient death, and last follow-up, was 66.0 days (53 days in simultaneous cases and 78 days in sequential cases). Stent dysfunction was seen in 13.0% (3/23) of patients in 267, 263, and 135 days after the procedure. Conclusions: The novel EUS-BD technique, EUS-AS using MS plus HES employing a dedicated PS, was shown to be a feasible procedure for MBO and should yield longer duration of stent patency. Furthermore, sequential antegrade stenting in cases of occluded HES seems to be one other option instead of HES stent exchange. Further large-scale comparison studies with EUS-HES or EUS-AS are required to confirm its clinical efficacy.
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Affiliation(s)
- Kenjiro Yamamoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takao Itoi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takayoshi Tsuchiya
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Reina Tanaka
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Ryosuke Tonozuka
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Mitsuyoshi Honjo
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Shuntaro Mukai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Mitsuru Fujita
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Yasutsugu Asai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Yukitoshi Matsunami
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takashi Kurosawa
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Atsushi Sofuni
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Yuichi Nagakawa
- Third Department of Surgery, Tokyo Medical University, Tokyo, Japan
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Kurosawa T, Li Y, Hiro T, Haruta H, Hirayama A. P2347Effects of DPP4 inhibitor Linagliptin on atherosclerotic lesions in Watanabe Heritable Hyperlipidemic rabbit. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p2347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Kataoka T, Mifune Y, Inui A, Takase F, Ueda Y, Kurosawa T, Kokubu T, Kuroda R. Evaluation of muscle elasticity and thickness in throwing shoulder using ultrasound. Asia Pac J Sports Med Arthrosc Rehabil Technol 2017. [DOI: 10.1016/j.asmart.2017.05.273] [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: 11/29/2022] Open
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Kurosawa T, Kokubu T, Mifune Y, Inui A, Takase F, Ueda Y, Kataoka T, Kuroda R. Surgical treatment of huge acromioclavicular joint cyst; two case reports. Asia Pac J Sports Med Arthrosc Rehabil Technol 2017. [DOI: 10.1016/j.asmart.2017.05.281] [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: 11/24/2022] Open
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Kurosawa T, Nakao N, Nakamura T, Uwamino Y, Shibata T, Nakanishi N, Fukumura A, Murakami K. Measurements of Secondary Neutrons Produced from Thick Targets Bombarded by High-Energy Helium and Carbon Ions. NUCL SCI ENG 2017. [DOI: 10.13182/nse98-53] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. Kurosawa
- Tohoku University, Cyclotron and Radioisotope Center, Aoba, Aramaki Sendai-shi, 980-8578, Japan
| | - N. Nakao
- High-Energy Accelerator Research Organization, Tanashi Branch 3-2-1, Midori-cho, Tanashi-shi, Tokyo, 188-8501, Japan
| | - T. Nakamura
- Tohoku University, Cyclotron and Radioisotope Center, Aoba, Aramaki Sendai-shi, 980-8578, Japan
| | - Y. Uwamino
- The Institute of Physical and Chemical Research, 2-1, Hirosawa, Wako Saitama, 351-0198, Japan
| | - T. Shibata
- High-Energy Accelerator Research Organization, Tanashi Branch 3-2-1, Midori-cho, Tanashi-shi, Tokyo, 188-8501, Japan
| | - N. Nakanishi
- The Institute of Physical and Chemical Research, 2-1, Hirosawa, Wako Saitama, 351-0198, Japan
| | - A. Fukumura
- National Institute of Radiological Sciences, 4-9-1, Anagawa, Inage-ku Chiba-shi, Chiba, 263-8555, Japan
| | - K. Murakami
- National Institute of Radiological Sciences, 4-9-1, Anagawa, Inage-ku Chiba-shi, Chiba, 263-8555, Japan
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Kurosawa T, Yurube T, Kakutani K, Maeno K, Uno K, Kurosaka M, Nishida K. Thoracic compression myelopathy due to the progression of dystrophic scoliosis, the presence of a paraspinal tumor, and high and excessive amplitude movement of the shoulder. J Orthop Surg (Hong Kong) 2017; 25:2309499016684726. [PMID: 28125937 DOI: 10.1177/2309499016684726] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The authors present a case of 45-year-old man with neurofibromatosis type 1 (NF-1) and thoracic scoliosis, previously undergoing fusion surgery, who developed myelopathy. This patient further complained of lightning pain when he extended and horizontally abducted the convex-side shoulder. Radiological examination revealed the progression of dystrophic scoliosis with opened spinal canals and the presence of a neurofibroma behind the spinal cord at the apical levels. Delayed development of spinal instability can occur due to dystrophy even postoperatively in patients with NF-1. After tumor resection, he had rapid recovery from myelopathy and no recurrence of radiating pain despite shoulder movement. These findings provide a speculation that high, intense amplitude movement of the shoulder toward the spinal canal causes the impingement on the neurofibroma, resulting in indirect compression of the exposed spinal cord. This is the first report describing thoracic compression myelopathy associated with paraspinal displacement of the scapula.
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Affiliation(s)
- Takashi Kurosawa
- 1 Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takashi Yurube
- 1 Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Kenichiro Kakutani
- 1 Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Koichiro Maeno
- 1 Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Koki Uno
- 2 Department of Orthopaedic Surgery, National Hospital Organization Kobe Medical Center, Kobe, Japan
| | - Masahiro Kurosaka
- 1 Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Kotaro Nishida
- 1 Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
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Fukunishi Y, Yamasaki S, Yasumatsu I, Takeuchi K, Kurosawa T, Nakamura H. Quantitative Structure-activity Relationship (QSAR) Models for Docking Score Correction. Mol Inform 2017; 36:1600013. [PMID: 28001004 PMCID: PMC5297997 DOI: 10.1002/minf.201600013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Accepted: 04/01/2016] [Indexed: 01/26/2023]
Abstract
In order to improve docking score correction, we developed several structure-based quantitative structure activity relationship (QSAR) models by protein-drug docking simulations and applied these models to public affinity data. The prediction models used descriptor-based regression, and the compound descriptor was a set of docking scores against multiple (∼600) proteins including nontargets. The binding free energy that corresponded to the docking score was approximated by a weighted average of docking scores for multiple proteins, and we tried linear, weighted linear and polynomial regression models considering the compound similarities. In addition, we tried a combination of these regression models for individual data sets such as IC50 , Ki , and %inhibition values. The cross-validation results showed that the weighted linear model was more accurate than the simple linear regression model. Thus, the QSAR approaches based on the affinity data of public databases should improve docking scores.
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Affiliation(s)
- Yoshifumi Fukunishi
- Molecular Profiling Research Center for Drug Discovery (molprof), National Institute of Advanced Industrial Science and Technology (AIST), 2-3-26, Aomi, Koto-ku, Tokyo, 135-0064, Japan
| | - Satoshi Yamasaki
- Technology Research Association for Next-Generation Natural Products Chemistry, 2-3-26, Aomi, Koto-ku, Tokyo, 135-0064, Japan
| | - Isao Yasumatsu
- Technology Research Association for Next-Generation Natural Products Chemistry, 2-3-26, Aomi, Koto-ku, Tokyo, 135-0064, Japan
- Daiichi Sankyo RD Novare Co., Ltd., 1-16-13, Kita-Kasai, Edogawa-ku, Tokyo, 134-8630, Japan
| | - Koh Takeuchi
- Molecular Profiling Research Center for Drug Discovery (molprof), National Institute of Advanced Industrial Science and Technology (AIST), 2-3-26, Aomi, Koto-ku, Tokyo, 135-0064, Japan
| | - Takashi Kurosawa
- Technology Research Association for Next-Generation Natural Products Chemistry, 2-3-26, Aomi, Koto-ku, Tokyo, 135-0064, Japan
- Hitachi Solutions East Japan, 12-1 Ekimaehoncho, Kawasaki-ku, Kanagawa, 210-0007, Japan
| | - Haruki Nakamura
- Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
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50
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Iida S, Mashimo T, Kurosawa T, Hojo H, Muta H, Goto Y, Fukunishi Y, Nakamura H, Higo J. Variation of free-energy landscape of the p53 C-terminal domain induced by acetylation: Enhanced conformational sampling. J Comput Chem 2016; 37:2687-2700. [PMID: 27735058 PMCID: PMC5242334 DOI: 10.1002/jcc.24494] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Revised: 07/26/2016] [Accepted: 08/31/2016] [Indexed: 12/29/2022]
Abstract
The C-terminal domain (CTD) of tumor suppressor protein p53 is an intrinsically disordered region that binds to various partner proteins, where lysine of CTD is acetylated/nonacetylated and histidine neutralized/non-neutralized. Because of the flexibility of the unbound CTD, a free-energy landscape (FEL) is a useful quantity for determining its statistical properties. We conducted enhanced conformational sampling of CTD in the unbound state via virtual system coupled multicanonical molecular dynamics, in which the lysine was acetylated or nonacetylated and histidine was charged or neutralized. The fragments were expressed by an all-atom model and were immersed in an explicit solvent. The acetylation and charge-neutralization varied FEL greatly, which might be convenient to exert a hub property. The acetylation slightly enhanced alpha-helix structures that are more compact than sheet/loop conformations. The charge-neutralization produced hairpins. Additionally, circular dichroism experiments confirmed the computational results. We propose possible binding mechanisms of CTD to partners by investigating FEL. © 2016 The Authors. Journal of Computational Chemistry Published by Wiley Periodicals, Inc.
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Affiliation(s)
- Shinji Iida
- Institute for Protein Research Osaka University, 3-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Tadaaki Mashimo
- Technology Research Association for Next Generation Natural Products Chemistry, 2-3-26 Aomi, Koto-Ku, Tokyo, 135-0064, Japan
- IMSBIO Co, Ltd, Owl Tower 6F, 4-21-1, Higashi-ikebukuro, Toshima-ku, Tokyo, 170-0013, Japan
| | - Takashi Kurosawa
- Technology Research Association for Next Generation Natural Products Chemistry, 2-3-26 Aomi, Koto-Ku, Tokyo, 135-0064, Japan
- Hitachi Solutions East Japan, 21-1 Ekimaehoncho, Kawasaki-ku, Kanagawa, 210-0007, Japan
| | - Hironobu Hojo
- Institute for Protein Research Osaka University, 3-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Hiroya Muta
- Institute for Protein Research Osaka University, 3-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Yuji Goto
- Institute for Protein Research Osaka University, 3-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Yoshifumi Fukunishi
- Technology Research Association for Next Generation Natural Products Chemistry, 2-3-26 Aomi, Koto-Ku, Tokyo, 135-0064, Japan
- Molecular Profiling Research Center for Drug Discovery (molprof), National Institute of Advanced Industrial Science and Technology (AIST), 2-3-36, Aomi, Koto-ku, Tokyo, 135-0064, Japan
| | - Haruki Nakamura
- Institute for Protein Research Osaka University, 3-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Junichi Higo
- Institute for Protein Research Osaka University, 3-2 Yamadaoka, Suita, Osaka, 565-0871, Japan.
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