1
|
Hattori S, Onishi K, Chan CK, Yamakawa S, Yano Y, Omodani T, Musahl V, Hogan MV, Debski RE. Optimal assessment for anterior talofibular ligament injury utilizing stress ultrasound entails internal rotation during plantarflexion. J ISAKOS 2024:S2059-7754(24)00029-4. [PMID: 38342182 DOI: 10.1016/j.jisako.2024.02.001] [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] [Received: 10/10/2023] [Revised: 12/11/2023] [Accepted: 02/04/2024] [Indexed: 02/13/2024]
Abstract
OBJECTIVES An optimal load and ankle position for stress ultrasound of the injured anterior talofibular ligament (ATFL) are unknown. The objectives of this study were to compare stress ultrasound and ankle kinematics from a 6 degree-of-freedom (6-DOF) robotic testing system as a reference standard for the evaluation of injured ATFL and suggest cut-off values for ultrasound diagnosis. METHODS Ten fresh-frozen human cadaveric ankles were used. Loads and ankle positions examined by the 6-DOF robotic testing system were: 40 N anterior load, 1.7 Nm inversion, and 1.7 Nm internal rotation torques at 30° plantarflexion, 15° plantarflexion, and 0° plantarflexion. Bony translations were measured by ultrasound and a robotic testing system under the above conditions. After measuring the intact ankle, ATFL was transected at its fibular attachment under arthroscopy. Correlations between ultrasound and robotic testing systems were calculated with Pearson correlation coefficients. Paired t-tests were performed for comparison of ultrasound measurements of translation between intact and transected ATFL and unloaded and loaded conditions in transected ATFL. RESULTS Good agreement between ultrasound measurement and that of the robotic testing system was found only in internal rotation at 30° plantarflexion (ICC = 0.77; 95% confidence interval 0.27-0.94). At 30° plantarflexion, significant differences in ultrasound measurements of translation between intact and transected ATFL (p < 0.01) were found in response to 1.7 Nm internal rotation torque and nonstress and stress with internal rotation (p < 0.01) with mean differences of 2.4 mm and 1.9 mm, respectively. CONCLUSION Based on the data of this study, moderate internal rotation and plantarflexion are optimal to evaluate the effects of ATFL injury when clinicians utilize stress ultrasound in patients. LEVEL OF EVIDENCE III.
Collapse
Affiliation(s)
- Soichi Hattori
- MechanoBiology Laboratory, Department of Orthopedic Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA; Orthopedic Robotics Laboratory, University of Pittsburgh, Pittsburgh, PA 296-8602, USA; Department of Sports Medicine, Kameda Medical Center, Kamogawa, 15213, Japan.
| | - Kentaro Onishi
- MechanoBiology Laboratory, Department of Orthopedic Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA; Orthopedic Robotics Laboratory, University of Pittsburgh, Pittsburgh, PA 296-8602, USA; Department of Physical Medicine and Rehabilitation, University of Pittsburgh School of Medicine, PA 15213, USA; Department of Orthopedic Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Calvin K Chan
- Orthopedic Robotics Laboratory, University of Pittsburgh, Pittsburgh, PA 296-8602, USA; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Satoshi Yamakawa
- Orthopedic Robotics Laboratory, University of Pittsburgh, Pittsburgh, PA 296-8602, USA
| | - Yuji Yano
- Orthopedic Robotics Laboratory, University of Pittsburgh, Pittsburgh, PA 296-8602, USA
| | - Toru Omodani
- Orthopedic Robotics Laboratory, University of Pittsburgh, Pittsburgh, PA 296-8602, USA
| | - Volker Musahl
- Orthopedic Robotics Laboratory, University of Pittsburgh, Pittsburgh, PA 296-8602, USA; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15213, USA; Department of Orthopedic Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - MaCalus V Hogan
- MechanoBiology Laboratory, Department of Orthopedic Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA; Orthopedic Robotics Laboratory, University of Pittsburgh, Pittsburgh, PA 296-8602, USA; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15213, USA; Department of Orthopedic Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA; Foot and Ankle Injury Research (FAIR) Group, Division of Foot and Ankle Surgery, Department of Orthopedic Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Richard E Debski
- Orthopedic Robotics Laboratory, University of Pittsburgh, Pittsburgh, PA 296-8602, USA; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15213, USA
| |
Collapse
|
2
|
Iwata S, Yamaguchi S, Kimura S, Hattori S, Mikami Y, Kawasaki Y, Shiko Y, Akagi R, Amaha K, Atsuta T, Ikegawa N, Koyama M, Nakagawa R, Omodani T, Ouchi H, Saito M, Takahashi K, Watanabe S, Sasho T, Ohtori S. Variability in sonographic anterior drawer test measurements of the ankle: Experienced versus beginner examiners. J Orthop Sci 2024; 29:243-248. [PMID: 36610840 DOI: 10.1016/j.jos.2022.12.005] [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: 07/27/2022] [Revised: 12/08/2022] [Accepted: 12/09/2022] [Indexed: 01/06/2023]
Abstract
BACKGROUND This study aimed to clarify the variability in the measurements of stress sonography of the ankle and determine the effects of examiner experience on the measurements. METHODS Twenty examiners (10 experienced and 10 beginners) were included in the study. Each examiner performed stress ultrasonography on a patient with a chronic anterior talofibular ligament injury and a patient with an intact ligament using the reverse anterior drawer method. Changes in ligament length before versus after stress were determined. The same 20 examiners performed ultrasonography on two other patients with an injured or intact ATFL using the anterior drawer method. The length change values and variance were compared between the groups using t-tests and F-tests. RESULTS Using the reverse anterior drawer method, the change in the anterior talofibular ligament length was 3.3 mm (range, 2.2-4.8 mm) in the experienced group and 2.7 mm (0.0-4.1 mm) in the beginner group for the ligament injured patient. The length changes for the patient with intact anterior talofibular ligament were 0.5 mm (0.1-0.9 mm) and 0.4 mm (-0.1-1.5 mm) in the experienced and beginner groups, respectively. There were no significant intergroup differences in measurement amount (P = 0.37) or variance (P = 0.72). Similarly, using the anterior drawer method, no significant differences between the groups were found in measurement amount or variance. CONCLUSION The quantitative evaluation of stress sonography of the ankle was variable regardless of examiner experience or stress method, particularly in patients with an anterior talofibular ligament injury. The amount of variability appeared to be unacceptably large for clinical application. Our study results highlight the need for technical standardization.
Collapse
Affiliation(s)
- Shuhei Iwata
- Department of Orthopaedic Surgery, Graduate School of Medical and Pharmaceutical Sciences, Chiba University, Chiba, Japan
| | - Satoshi Yamaguchi
- Department of Orthopaedic Surgery, Graduate School of Medical and Pharmaceutical Sciences, Chiba University, Chiba, Japan; Graduate School of Global and Transdisciplinary Studies, Chiba University, Chiba, Japan.
| | - Seiji Kimura
- Department of Orthopaedic Surgery, Graduate School of Medical and Pharmaceutical Sciences, Chiba University, Chiba, Japan
| | - Soichi Hattori
- Biostatistics Section, Clinical Research Center, Chiba University Hospital, Chiba, Japan
| | - Yukio Mikami
- Department of Orthopaedic Surgery, Graduate School of Medical and Pharmaceutical Sciences, Chiba University, Chiba, Japan
| | - Yohei Kawasaki
- Biostatistics Section, Clinical Research Center, Chiba University Hospital, Chiba, Japan
| | - Yuki Shiko
- Biostatistics Section, Clinical Research Center, Chiba University Hospital, Chiba, Japan
| | - Ryuichiro Akagi
- Department of Orthopaedic Surgery, Oyumino Central Hospital, Chiba, Japan
| | - Kentaro Amaha
- Department of Orthopaedic Surgery, St. Luke's International Hospital, Tokyo, Japan
| | | | - Naoshi Ikegawa
- Department of Orthopaedic Surgery, Kashiwa City Hospital, Chiba, Japan
| | - Minoru Koyama
- Division of Rehabilitation, Kameda Medical Center, Kamogawa, Japan
| | - Ryosuke Nakagawa
- Department of Orthopaedic Surgery, Kohnodai Hospital, Tokyo, Japan
| | | | - Hiroshi Ouchi
- Department of Sports Medicine, Kameda Medical Center, Kamogawa, Japan
| | - Masahiko Saito
- Department of Orthopaedic Surgery, Chiba Medical Center, Chiba, Japan
| | - Kenji Takahashi
- Sports Medicine &; Joint Center, Funabashi Orthopaedic Hospital, Chiba, Japan
| | - Shotaro Watanabe
- Department of Orthopaedic Surgery, Graduate School of Medical and Pharmaceutical Sciences, Chiba University, Chiba, Japan
| | - Takahisa Sasho
- Department of Orthopaedic Surgery, Graduate School of Medical and Pharmaceutical Sciences, Chiba University, Chiba, Japan; Center for Preventive Medical Sciences, Chiba University, Chiba, Japan
| | - Seiji Ohtori
- Department of Orthopaedic Surgery, Graduate School of Medical and Pharmaceutical Sciences, Chiba University, Chiba, Japan
| |
Collapse
|
3
|
Iwata S, Yamaguchi S, Kimura S, Hattori S, Sasahara J, Akagi R, Amaha K, Atsuta T, Kanzaki N, Noguchi K, Okada H, Omodani T, Ohuchi H, Sato H, Takada S, Takahashi K, Yamada Y, Yasui T, Yokoe T, Fukushima S, Iida D, Ono Y, Kawasaki Y, Shiko Y, Sasho T, Ohtori S. Do standardization of the procedure reduce measurement variability of the sonographic anterior drawer test of the ankle? J Orthop Sci 2023:S0949-2658(23)00320-2. [PMID: 37996296 DOI: 10.1016/j.jos.2023.11.006] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 11/04/2023] [Accepted: 11/09/2023] [Indexed: 11/25/2023]
Abstract
BACKGROUND In quantitative ankle stress sonography, different examiners use different techniques, which may cause measurement variability. This study aimed to clarify whether standardizing stress sonography techniques reduces variability in the quantitative measurement of anterior talofibular ligament length change. METHODS Fourteen examiners with a mean ultrasound experience of 8.7 years participated in this study. Each examiner performed stress ultrasonography of the ankle using their preferred method on one patient with an intact anterior talofibular ligament (Patient 1) and on two patients with chronic ankle instability (Patient 2 and 3). Changes in the ligament length between the resting and stressed positions were determined. A consensus meeting was then conducted to standardize the sonographic technique, which was used by the examiners during a repeat stress sonography on the same patients. The variance and measured values were compared between the preferred and standardized techniques using F-tests and paired t-tests, respectively. RESULTS At a consensus meeting, a sonographic technique in which the examiner pushed the lower leg posteriorly against the fixed foot was adopted as the standardized technique. In Patient 1, the change in the anterior talofibular ligament length was 0.4 (range, -2.3-1.3) mm and 0.6 (-0.6-1.7) mm using the preferred and standardized techniques, respectively, with no significant difference in the variance (P = 0.51) or the measured value (P = 0.52). The length changes in Patient 2 were 2.0 (0.3-4.4) mm and 1.7 (-0.9-3.8) mm using the preferred and standardized techniques, respectively. In Patient 3, the length changes were 1.4 (-2.7-7.1) mm and 0.7 (-2.0-2.3) mm. There were no significant differences between the techniques in either patient group. CONCLUSION Variability in the quantitative measurement of ankle stress sonography was not reduced despite the standardization of the technique among examiners. Hence, comparing the measured values between different examiners should be avoided.
Collapse
Affiliation(s)
- Shuhei Iwata
- Department of Orthopaedic Surgery, Graduate School of Medical and Pharmaceutical Sciences, Chiba University, Chiba, Japan
| | - Satoshi Yamaguchi
- Department of Orthopaedic Surgery, Graduate School of Medical and Pharmaceutical Sciences, Chiba University, Chiba, Japan; Graduate School of Global and Transdisciplinary Studies, Chiba University, Chiba, Japan.
| | - Seiji Kimura
- Department of Orthopaedic Surgery, Graduate School of Medical and Pharmaceutical Sciences, Chiba University, Chiba, Japan
| | - Soichi Hattori
- Department of Sports Medicine, Kameda Medical Center, Chiba, Japan
| | - Jun Sasahara
- Institute of Sports Science & Medicine, Teikyo University, Tokyo, Japan
| | - Ryuichiro Akagi
- Department of Orthopaedic Surgery, Oyumino Central Hospital, Chiba, Japan
| | - Kentaro Amaha
- Department of Orthopaedic Surgery, St. Luke's International Hospital, Tokyo, Japan
| | | | - Noriyuki Kanzaki
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Hyogo, Japan
| | - Koji Noguchi
- Department of Orthopaedic Surgery, Japan Community Health Care Organization Kurume General Hospital, Fukuoka, Japan
| | | | | | - Hiroshi Ohuchi
- Department of Sports Medicine, Kameda Medical Center, Chiba, Japan
| | - Hiroyuki Sato
- Department of Sports Medicine, Kameda Medical Center, Chiba, Japan
| | - Satoshi Takada
- Department of Orthopaedic Surgery, Dokkyo Medical University, Tochigi, Japan
| | - Kenji Takahashi
- Sports Medicine & Joint Center, Funabashi Orthopaedic Hospital, Chiba, Japan
| | - Yuichi Yamada
- Institute for Integrated Sports Medicine, School of Medicine, Keio University, Tokyo, Japan
| | - Tetsuro Yasui
- Department of Orthopaedic Surgery, Teikyo University Mizonokuchi Hospital, Kanagawa, Japan
| | - Takuji Yokoe
- Division of Orthopaedic Surgery, Department of Medicine of Sensory and Motor Organs, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - Shun Fukushima
- Department of Orthopaedic Surgery, Graduate School of Medical and Pharmaceutical Sciences, Chiba University, Chiba, Japan
| | - Daisuke Iida
- Department of Orthopaedic Surgery, Graduate School of Medical and Pharmaceutical Sciences, Chiba University, Chiba, Japan
| | - Yoshimasa Ono
- Department of Orthopaedic Surgery, Numazu City Hospital, Shizuoka, Japan
| | - Yohei Kawasaki
- Biostatistics Section, Clinical Research Center, Chiba University Hospital, Chiba, Japan
| | - Yuki Shiko
- Biostatistics Section, Clinical Research Center, Chiba University Hospital, Chiba, Japan
| | - Takahisa Sasho
- Department of Orthopaedic Surgery, Graduate School of Medical and Pharmaceutical Sciences, Chiba University, Chiba, Japan; Center for Preventive Medical Sciences, Chiba University, Chiba, Japan
| | - Seiji Ohtori
- Department of Orthopaedic Surgery, Graduate School of Medical and Pharmaceutical Sciences, Chiba University, Chiba, Japan
| |
Collapse
|
4
|
Fujishiro H, Nimura A, Azumaya M, Hattori S, Hoshi O, Akita K. Anatomical study of the bone morphology of the anterior talofibular ligament attachment. Anat Cell Biol 2023; 56:334-341. [PMID: 37482888 PMCID: PMC10520850 DOI: 10.5115/acb.23.002] [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] [Received: 01/05/2023] [Revised: 03/23/2023] [Accepted: 05/19/2023] [Indexed: 07/25/2023] Open
Abstract
Anterior talofibular ligament (ATFL) injuries are the most common cause of ankle sprains. To ensure anatomically accurate surgery and ultrasound imaging of the ATFL, anatomical knowledge of the bony landmarks around the ATFL attachment to the distal fibula is required. The purpose of the present study was to anatomically investigate the ATFL attachment to the fibula with respect to bone morphology and attachment structures. First, we analyzed 36 feet using microcomputed tomography. After excluding 9 feet for deformities, the remaining 27 feet were used for chemically debrided bone analysis and macroscopic and histological observations. Ten feet of living specimens were observed using ultrasonography. We found that a bony ridge was present at the boundary between the attachments of the ATFL and calcaneofibular ligament (CFL) to the fibula. These two attachments could be distinguished based on a difference in fiber orientation. Histologically, the ATFL was attached to the anterodistal part of the fibula via fibrocartilage anterior to the bony ridge indicating the border with the CFL attachment. Using ultrasonography in living specimens, the bony ridge and hyperechoic fibrillar pattern of the ATFL could be visualized. We established that the bony ridge corresponded to the posterior margin of the ATFL attachment itself. The ridge was obvious, and the superior fibers of the ATFL have directly attached anteriorly to it. This bony ridge could become a valuable and easy-to-use landmark for ultrasound imaging of the ATFL attachment if combined with the identification of the fibrillar pattern of the ATFL.
Collapse
Affiliation(s)
- Hitomi Fujishiro
- Department of Anatomy and Physiological Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Akimoto Nimura
- Department of Functional Joint Anatomy, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Mizuki Azumaya
- Department of Anatomy and Physiological Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Soichi Hattori
- Department of Clinical Anatomy, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
- Department of Sports Medicine, Kameda Medical Center, Chiba, Japan
| | - Osamu Hoshi
- Department of Anatomy and Physiological Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Keiichi Akita
- Department of Clinical Anatomy, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| |
Collapse
|
5
|
Hattori S, Onishi K. Ultrasound-guided surgery in musculoskeletal medicine. J Med Ultrason (2001) 2022; 49:513-515. [DOI: 10.1007/s10396-022-01255-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 08/22/2022] [Indexed: 11/09/2022]
|
6
|
Hattori S, Onishi K, Chan CK, Yamakawa S, Yano Y, Winkler PW, Hogan MV, Debski RE. Ultrasound-Guided Anterior Talofibular Ligament Repair With Augmentation Can Restore Ankle Kinematics: A Cadaveric Biomechanical Study. Orthop J Sports Med 2022; 10:23259671221111397. [PMID: 35958291 PMCID: PMC9358583 DOI: 10.1177/23259671221111397] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 05/12/2022] [Indexed: 12/26/2022] Open
Abstract
Background: Anterior talofibular ligament (ATFL) repair of the ankle is a common surgical procedure. Ultrasound (US)-guided anchor placement for ATFL repair can be performed anatomically and accurately. However, to our knowledge, no study has investigated ankle kinematics after US-guided ATFL repair. Hypothesis: US-guided ATFL repair with and without inferior extensor retinaculum (IER) augmentation will restore ankle kinematics. Study Design: Controlled laboratory study; Level of evidence, 4. Methods: A 6 degrees of freedom robotic testing system was used to apply multidirectional loads to fresh-frozen cadaveric ankles (N = 9). The following ankle states were evaluated: ATFL intact, ATFL deficient, combined ATFL repair and IER augmentation, and isolated US-guided ATFL repair. Three loading conditions (internal-external rotation torque, anterior-posterior load, and inversion-eversion torque) were applied at 4 ankle positions: 30° of plantarflexion, 15° of plantarflexion, 0° of plantarflexion, and 15° of dorsiflexion. The resulting kinematics were recorded and compared using a 1-way repeated-measures analysis of variance with the Benjamini-Hochberg test. Results: Anterior translation in response to an internal rotation torque significantly increased in the ATFL-deficient state compared with the ATFL-intact state at 30° and 15° of plantarflexion (P = .022 and .03, respectively). After the combined US-guided ATFL repair and augmentation, anterior translation was reduced significantly compared with the ATFL-deficient state at 30° and 15° of plantarflexion (P = .0012 and .005, respectively). Anterior translation was not significantly different for the isolated ATFL-repair state compared with the ATFL-deficient or ATFL-intact states at 30° and 15° of plantarflexion. Conclusion: Combined US-guided ATFL repair with augmentation of the IER reduced lateral ankle laxity due to ATFL deficiency. Isolated US-guided ATFL repair did not reduce laxity due to ATFL deficiency, nor did it increase instability compared with the intact ankle. Clinical Relevance: US-guided ATFL repair with IER augmentation is a minimally-invasive technique to reduce lateral ankle laxity due to ATFL deficiency. Isolated US-guided ATFL repair may be a viable option if accompanied by a period of immobilization.
Collapse
Affiliation(s)
- Soichi Hattori
- Orthopaedic Robotics Laboratory, Center for Biotechnology and Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Department of Sports Medicine, Kameda Medical Center, Kamogawa, Japan
- Department of Clinical Anatomy, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Kentaro Onishi
- Orthopaedic Robotics Laboratory, Center for Biotechnology and Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Calvin K. Chan
- Orthopaedic Robotics Laboratory, Center for Biotechnology and Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Department of Orthopedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Satoshi Yamakawa
- Orthopaedic Robotics Laboratory, Center for Biotechnology and Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Yuji Yano
- Orthopaedic Robotics Laboratory, Center for Biotechnology and Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Philipp W. Winkler
- Orthopaedic Robotics Laboratory, Center for Biotechnology and Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Department of Orthopedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Department of Orthopaedic Sports Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - MaCalus V. Hogan
- Orthopaedic Robotics Laboratory, Center for Biotechnology and Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Foot and Ankle Injury Research (FAIR) Group, Division of Foot and Ankle Surgery, Department of Orthopedic Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Richard E. Debski
- Orthopaedic Robotics Laboratory, Center for Biotechnology and Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Department of Orthopedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| |
Collapse
|
7
|
Nishimura A, Kawahara M, Kawachi Y, Hasegawa J, Makino S, Kitami C, Nakano T, Otani T, Nemoto M, Hattori S, Nikkuni K. Totally laparoscopic resection of right-sided colon cancer using transvaginal specimen extraction with a 10-mm-long abdominal incision. Tech Coloproctol 2022; 26:755-760. [DOI: 10.1007/s10151-022-02636-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 05/01/2022] [Indexed: 11/24/2022]
|
8
|
E. Kawaguchi, Miyai N, Zhang Y, Hattori S, Uematsu Y, Utsumi M, Takeshita T, Arita M. The association of arterial stiffness with muscle mass reduction and low muscle strength in community-dwelling elderly individuals: The Wakayama study. Atherosclerosis 2021. [DOI: 10.1016/j.atherosclerosis.2021.06.298] [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: 11/27/2022]
|
9
|
Yang J, Sun Y, Xu F, Liu W, Hayashi T, Mizuno K, Hattori S, Fujisaki H, Ikejima T. Autophagy and glycolysis independently attenuate silibinin-induced apoptosis in human hepatocarcinoma HepG2 and Hep3B cells. Hum Exp Toxicol 2021; 40:2048-2062. [PMID: 34053323 DOI: 10.1177/09603271211017609] [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: 10/21/2022]
Abstract
PURPOSE The mechanism of cytotoxicity of silibinin on two human hepatocellular carcinoma (HCC) cell lines, HepG2 (p53 wild-type) and Hep3B cells (p53 null), is examined in relation with the induction of autophagy and phosphorylation of AMP-activated protein kinase (p-AMPK). MATERIALS AND METHODS Levels of apoptosis in relation to the levels of autophagy and those of glycolysis-related proteins, glucose transporter 1/4 (Glut1/4) and hexokinase-II (HK2), in HepG2 and Hep3B cells were examined. RESULTS Silibinin-induced apoptosis was incomplete for HCC cell death in that up-regulated autophagy and/or reduced level of glycolysis, which are induced by silibinin treatment, antagonized silibinin-induced apoptosis. Inhibition of autophagy with 3-methyl adenine (3MA) or blocking of AMP-activated protein kinase (AMPK) activation with Compound C (CC) enhanced silibinin-induced apoptosis. The results confirm that AMPK involved in autophagy as well as in glycolysis remaining with silibinin is responsible for attenuation of silibinin-induced apoptosis. Blocking of AMPK or autophagy contributes to the enhancement of silibinin's cytotoxicity to HepG2 and Hep3B cells. CONCLUSION This study shows that incomplete apoptosis of HCC by silibinin treatment becomes complete by repression of autophagy and/or glycolysis.
Collapse
Affiliation(s)
- J Yang
- Department of Pharmacy, 159411The Third People's Hospital of Chengdu, Chengdu, Sichuan, People's Republic of China.,Wuya College of Innovation, 58575Shenyang Pharmaceutical University, Shenyang, Liaoning, People's Republic of China
| | - Y Sun
- Wuya College of Innovation, 58575Shenyang Pharmaceutical University, Shenyang, Liaoning, People's Republic of China
| | - F Xu
- Wuya College of Innovation, 58575Shenyang Pharmaceutical University, Shenyang, Liaoning, People's Republic of China
| | - W Liu
- Wuya College of Innovation, 58575Shenyang Pharmaceutical University, Shenyang, Liaoning, People's Republic of China
| | - T Hayashi
- Wuya College of Innovation, 58575Shenyang Pharmaceutical University, Shenyang, Liaoning, People's Republic of China.,Department of Chemistry and Life Science, School of Advanced Engineering, Kogakuin University, Hachioji, Tokyo, Japan.,Nippi Research Institute of Biomatrix, Toride, Ibaraki, Japan
| | - K Mizuno
- Nippi Research Institute of Biomatrix, Toride, Ibaraki, Japan
| | - S Hattori
- Nippi Research Institute of Biomatrix, Toride, Ibaraki, Japan
| | - H Fujisaki
- Nippi Research Institute of Biomatrix, Toride, Ibaraki, Japan
| | - T Ikejima
- Wuya College of Innovation, 58575Shenyang Pharmaceutical University, Shenyang, Liaoning, People's Republic of China.,Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, 58575Shenyang Pharmaceutical University, Shenyang, Liaoning, People's Republic of China
| |
Collapse
|
10
|
Asada-Utsugi M, Uemura K, Kubota M, Noda Y, Tashiro Y, Uemura TM, Yamakado H, Urushitani M, Takahashi R, Hattori S, Miyakawa T, Ageta-Ishihara N, Kobayashi K, Kinoshita M, Kinoshita A. Mice with cleavage-resistant N-cadherin exhibit synapse anomaly in the hippocampus and outperformance in spatial learning tasks. Mol Brain 2021; 14:23. [PMID: 33494786 PMCID: PMC7831172 DOI: 10.1186/s13041-021-00738-1] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 01/16/2021] [Indexed: 11/30/2022] Open
Abstract
N-cadherin is a homophilic cell adhesion molecule that stabilizes excitatory synapses, by connecting pre- and post-synaptic termini. Upon NMDA receptor (NMDAR) activation by glutamate, membrane-proximal domains of N-cadherin are cleaved serially by a-disintegrin-and-metalloprotease 10 (ADAM10) and then presenilin 1(PS1, catalytic subunit of the γ-secretase complex). To assess the physiological significance of the initial N-cadherin cleavage, we engineer the mouse genome to create a knock-in allele with tandem missense mutations in the mouse N-cadherin/Cadherin-2 gene (Cdh2 R714G, I715D, or GD) that confers resistance on proteolysis by ADAM10 (GD mice). GD mice showed a better performance in the radial maze test, with significantly less revisiting errors after intervals of 30 and 300 s than WT, and a tendency for enhanced freezing in fear conditioning. Interestingly, GD mice reveal higher complexity in the tufts of thorny excrescence in the CA3 region of the hippocampus. Fine morphometry with serial section transmission electron microscopy (ssTEM) and three-dimensional (3D) reconstruction reveals significantly higher synaptic density, significantly smaller PSD area, and normal dendritic spine volume in GD mice. This knock-in mouse has provided in vivo evidence that ADAM10-mediated cleavage is a critical step in N-cadherin shedding and degradation and involved in the structure and function of glutamatergic synapses, which affect the memory function.
Collapse
Affiliation(s)
- M. Asada-Utsugi
- School of Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
- Department of Neurology, Kyoto University Graduate School of Medicine, Kyoto, Japan
- Department of Neurology, Shiga University of Medical Science, Seta-Tsukinowa-Cho Otsu, Shiga, 520-2192 Japan
| | - K. Uemura
- Department of Neurology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - M. Kubota
- School of Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Y. Noda
- School of Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Y. Tashiro
- School of Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - T. M. Uemura
- Department of Neurology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - H. Yamakado
- Department of Neurology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - M. Urushitani
- Department of Neurology, Shiga University of Medical Science, Seta-Tsukinowa-Cho Otsu, Shiga, 520-2192 Japan
| | - R. Takahashi
- Department of Neurology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - S. Hattori
- Division of Systems Medical Science, Institute for Comprehensive Medical Science, Fujita Health University, Toyoake, 470-1192 Japan
| | - T. Miyakawa
- Division of Systems Medical Science, Institute for Comprehensive Medical Science, Fujita Health University, Toyoake, 470-1192 Japan
| | - N. Ageta-Ishihara
- Division of Biological Sciences, Department of Molecular Biology, Nagoya University Graduate School of Science, Nagoya, 464-8602 Japan
| | - K. Kobayashi
- Department of Pharmacology, Graduate School of Medicine, Nippon Medical School, Tokyo, 113-8602 Japan
| | - M. Kinoshita
- Division of Biological Sciences, Department of Molecular Biology, Nagoya University Graduate School of Science, Nagoya, 464-8602 Japan
| | - A. Kinoshita
- School of Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| |
Collapse
|
11
|
Hattori S, Onishi K, Yano Y, Kato Y, Ohuchi H, Hogan MV, Kumai T. Sonographically Guided Anchor Placement in Anterior Talofibular Ligament Repair Is Anatomic and Accurate. Orthop J Sports Med 2020; 8:2325967120967322. [PMID: 33354581 PMCID: PMC7734515 DOI: 10.1177/2325967120967322] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 05/21/2020] [Accepted: 06/17/2020] [Indexed: 12/27/2022] Open
Abstract
Background Arthroscopic repair is a widely accepted surgical treatment for chronic ankle instability; however, recent studies have shown that arthroscopic repair is nonanatomic in its anchor placement and resultant biomechanics. Ultrasound may improve the accuracy of the anchor placement. Hypothesis Our hypothesis was that the accuracy of anchor placement in sonographically guided anterior talofibular ligament (ATFL) repair will be comparable with that in open ATFL repair. Study Design Cohort study; Level of evidence, 3. Methods The study included 26 patients who received surgical treatment between April 2012 and October 2019 for chronic ankle instability. Fifteen patients underwent open modified Broström repair and 11 underwent sonographically guided ATFL repair. The distance between the anchor hole and the fibular obscure tubercle was measured using 3-dimensional computed tomography and was compared between the operative procedures. For comparison, a noninferiority trial was employed, with open modified Broström repair as the reference surgery. The noninferiority margin was defined as 5 mm. Results The mean ± SD distance between the anchor and fibular obscure tubercle was 6.0 ± 2.7 mm in open repair and 5.6 ± 3.3 mm in sonographically guided repair. The mean difference in distance between the techniques (open repair - sonographically guided repair) was 0.37 mm (95% CI, -2.1 to 2.9 mm). The lower margin of the confidence interval was within the noninferiority margin (-5 to 5 mm). Conclusion Anchor placement under sonographically guided ATFL repair was equivalent to that of open ATFL repair and can be considered anatomic and accurate.
Collapse
Affiliation(s)
- Soichi Hattori
- Department of Sports Medicine, Kameda Medical Center, Kamogawa, Japan.,Department of Physical Medicine and Rehabilitation, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Clinical Anatomy, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.,Foot and Ankle Injury Research Group, Division of Foot and Ankle Surgery, Department of Orthopedic Surgery, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Kentaro Onishi
- Department of Physical Medicine and Rehabilitation, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Orthopedic Surgery, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Yuji Yano
- Department of Sports Medicine, Kameda Medical Center, Kamogawa, Japan.,Department of Physical Medicine and Rehabilitation, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Foot and Ankle Injury Research Group, Division of Foot and Ankle Surgery, Department of Orthopedic Surgery, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Yuki Kato
- Department of Sports Medicine, Kameda Medical Center, Kamogawa, Japan
| | - Hiroshi Ohuchi
- Department of Sports Medicine, Kameda Medical Center, Kamogawa, Japan
| | - MaCalus V Hogan
- Foot and Ankle Injury Research Group, Division of Foot and Ankle Surgery, Department of Orthopedic Surgery, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Orthopedic Surgery, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Tsukasa Kumai
- Faculty of Sport Sciences, Waseda University, Tokyo, Japan
| |
Collapse
|
12
|
Tanaka H, Ohno N, Kajita S, Takano H, Hattori S, Imaeda Y. Evaluation of axial decay length of plasma pressure in detached plasma. Nuclear Materials and Energy 2020. [DOI: 10.1016/j.nme.2020.100812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
13
|
Shigeta K, Matsumoto K, Takeda T, Hattori S, Kaneko G, Matsushima M, Yasumizu Y, Tanaka N, Morita S, Kosaka T, Mizuno R, Asanuma H, Oya M. Comparing the oncological outcomes between pure laparoscopic radical nephroureterectomy and laparoscopic assisted nephroureterectomy for upper-tract urothelial carcinoma: A multi-center cohort study adjusted by propensity score matching. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)32771-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
|
14
|
Ota T, Murakami Y, Kozuka Y, Ohshiro C, Kihara N, Gunji Y, Hattori S, Noguchi K. P224 Valvuloplasty treatment and three-dimensional analysis for isolated cleft of the anterior mitral valve leaflet: a case report. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Introduction: Isolated cleft of the anterior mitral valve leaflet is a very rare congenital disease and a cause of mitral regurgitation
not associated with atrioventricular septal defect. In this case, we report our experience in valvuloplasty treatment for mitral regurgitation with this rare aetiology.
Case description
23-year-old Russian women. Although cardiac murmur was pointed out in her childhood and she was diagnosed as mitral regurgitation, she refused treatment. After getting married with a Japanese man and moving to Japan, her symptoms had worsened and she visited our hospital for treatment. Preoperative transthoracic echocardiography (TTE) had indicated the regurgitation from the central part of the mitral valve. Preoperative transoesophageal echocardiography (TOE) had pointed out the isolated cleft of the anterior mitral valve.
Surgical mitral valvuloplasty was scheduled, and the TOE after anaesthetic induction showed the isolated cleft of the anterior mitral valve the same as in the preoperative period and pointed out the posterior leaflet billowing. The operative finding was also similar to TOE: the largely bisected central anterior mitral valve and billowing, P2 billowing, shortening of P1 and P3, P2-3 cleft. There were no chords at the anterior cleft. The valvuloplasty was performed including five-time pump runs in total: 1) Continuous suture for the anterior cleft and ring annuloplasty were performed, and the regurgitation was seemed to be almost controlled at the water-leak test and the ink test; 2) Artificial chordae and leaflet plications were added to residual regurgitation from the posterior region; 3)The residual regurgitation was controlled to Mild but it became a lateral jet toward the ring; 4)Mild remnant flow was pointed out: the regurgitation seemed to be from the posterior cleft, where immediately below the ring suture; 5) Pericardium patch was added and the remnant flow was almost eliminated. The pump was weaned and the operation was finished without any problems.
Discussion
The cause of difficulty in this valvuloplasty was thought to be caused by the difficulty in evaluating the mitral valve morphology. It was evident that the anterior leaflet of the mitral valve was largely bisected. However, it was difficult to evaluate the coaptation line and area due to the absence of chordal cords in the anterior cleft and the billowing or shortening of the posterior leaflet. Although preoperative three-dimensional analysis helped evaluating the isolated cleft and the regurgitation was almost controlled in the evaluation in the operation field, nevertheless, a residual regurgitation occurred and indicated in the TOE after re-beating.
Conclusion
It is important and necessary to use fine evaluation of coaptation is needed in valvuloplasty for isolated cleft of the anterior mitral valve leaflet; not only apply three-dimensional analysis but also apply two-dimensional echocardiogram.
Abstract P224 Figure.
Collapse
Affiliation(s)
- T Ota
- Shonan Kamakura General Hospital, Anesthesiology, Kamakura, Japan
| | - Y Murakami
- Shonan Kamakura General Hospital, Cardiac Ultrasound Laboratory, Kamakura, Japan
| | - Y Kozuka
- Shonan Kamakura General Hospital, Cardiac Ultrasound Laboratory, Kamakura, Japan
| | - C Ohshiro
- Shonan Kamakura General Hospital, Cardiac Ultrasound Laboratory, Kamakura, Japan
| | - N Kihara
- Shonan Kamakura General Hospital, Cardiac Ultrasound Laboratory, Kamakura, Japan
| | - Y Gunji
- Shonan Kamakura General Hospital , Cardiovascular Surgery, Kamakura, Japan
| | - S Hattori
- Shonan Kamakura General Hospital , Cardiovascular Surgery, Kamakura, Japan
| | - K Noguchi
- Shonan Kamakura General Hospital , Cardiovascular Surgery, Kamakura, Japan
| |
Collapse
|
15
|
Buyo M, Takahashi S, Iwahara A, Tsuji T, Yamada S, Hattori S, Uematsu Y, Arita M, Ukai S. Metabolic Syndrome and Cognitive Function: Cross-Sectional Study on Community-Dwelling Non-Demented Older Adults in Japan. J Nutr Health Aging 2020; 24:878-882. [PMID: 33009539 DOI: 10.1007/s12603-020-1412-6] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AIM This is a cross-sectional study of relation between metabolic syndrome and cognitive function in community-dwelling non-demented older adults in Japan. We examine the effect of metabolic syndrome and its components on global cognitive function. We also aim to clarify differences of specific cognitive domains between the subjects with and without metabolic syndrome. METHODS We studied 2150 subjects aged between 60 and 90 years whose scores on mini mental state examination (MMSE) were over 23 points. We analyzed difference in MMSE scores between the subjects with and without metabolic syndrome. Logistic regression analysis was performed with MMSE score as the dependent variable and metabolic syndrome components as the independent variable adjusted with age. We also examined differences in attention, logical memory, and verbal and category fluency between the subjects with and without metabolic syndrome. RESULTS MMSE scores were not significantly different between subjects with and without metabolic syndrome. In logistic regression analysis, the score of MMSE was significantly negatively associated with triglycerides in males and significantly negatively associated with abdominal circumference in females. Subjects with metabolic syndrome showed significantly lower performance of attention tasks compared to subjects without metabolic syndrome. CONCLUSIONS Our results suggest that in community-dwelling non-demented Japanese older adults, attention but not global cognitive function may be impaired by metabolic syndrome. Inverted association between some components of metabolic syndrome and global cognitive function indicate necessity of further studies on the relation between undernutrition and cognitive function.
Collapse
Affiliation(s)
- M Buyo
- Momoko Buyo CNS MSN RN, Department of Neuropsychiatry, Wakayama Medical University, 811-1, Kimiidera, Wakayama, 641-0012 Japan, Telephone: +81-73-441-0759, Fax: +81-73-441-0769, E-mail:
| | | | | | | | | | | | | | | | | |
Collapse
|
16
|
Abstract
PURPOSE OF REVIEW Ultrasound (US) is an increasingly popular imaging modality currently used both in clinics and operating rooms. The purpose of this review is to appraise literature describing traditional lateral ankle stabilization techniques and discuss potential advantages of US-guided ankle lateral ligament stabilization. In addition, albeit limited, we will describe our experiences in perfecting this technique. RECENT FINDINGS To date, the modified open Broström-Gould technique remains as the gold standard surgical treatment for chronic ankle instability (CAI). In the past decade, modifications of this technique have been done, from a combination of arthroscopic and open procedure to an all-inside arthroscopic technique with a goal of minimizing wound complications, better outcomes, and earlier return to activity. Recently, the use of US as an adjunct to surgical procedures has gained popularity and several novel techniques have been described. The use of US in lateral ankle stabilization could allow accurate placement of the suture anchor at the anatomical attachment of the anterior talofibular ligament (ATFL) without iatrogenic damage to the neurovascular structures such as anterolateral malleolar artery, superficial peroneal nerve, and sural nerve. In summary, the use of US in ankle lateral ligament stabilization is a promising new micro-invasive technique. The theoretical advantages of US-guided ankle lateral ligament stabilization include direct visualization of desired anatomical landmarks and structures which could increase accuracy, decrease iatrogenic neurovascular damage, minimize wound complications, and improve outcomes.
Collapse
Affiliation(s)
- Soichi Hattori
- Department of Sports Medicine, Kameda Medical Center, 929 Higashi-cho, Kamogawa City, Chiba Prefecture, 2968602, Japan. .,Department of Clinical Anatomy, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.
| | - Carlo Antonio D Alvarez
- Department of Sports Medicine, Kameda Medical Center, 929 Higashi-cho, Kamogawa City, Chiba Prefecture, 2968602, Japan
| | - Stephen Canton
- Department of Orthopedic Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213, USA
| | - Macalus V Hogan
- Department of Orthopedic Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213, USA
| | - Kentaro Onishi
- Department of Orthopedic Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213, USA.,Department of Physical Medicine and Rehabilitation, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213, USA
| |
Collapse
|
17
|
Ogihara K, Kikuchi E, Okabe T, Hattori S, Yamashita R, Yoshimine S, Shirotake S, Matsumoto K, Mizuno R, Hara S, Oyama M, Niwakawa M, Oya M. Neutrophil-to-lymphocyte ratio is a useful biomarker for predicting worse clinical outcome in chemo-resistant urothelial carcinoma patients treated with pembrolizumab. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz425.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
18
|
Gautier E, Savarino J, Hoek J, Erbland J, Caillon N, Hattori S, Yoshida N, Albalat E, Albarede F, Farquhar J. Author Correction: 2600-years of stratospheric volcanism through sulfate isotopes. Nat Commun 2019; 10:2663. [PMID: 31209219 PMCID: PMC6572742 DOI: 10.1038/s41467-019-10539-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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: 11/25/2022] Open
Affiliation(s)
- E Gautier
- Univ. Grenoble Alpes, CNRS, IRD, Grenoble INP, Institut des Géosciences de l'Environnement (IGE), 54 rue Molière, 38058, Grenoble Cedex 9, France.
| | - J Savarino
- Univ. Grenoble Alpes, CNRS, IRD, Grenoble INP, Institut des Géosciences de l'Environnement (IGE), 54 rue Molière, 38058, Grenoble Cedex 9, France.
| | - J Hoek
- Department of Geology and Earth System Science Interdisciplinary Center (ESSIC), University of Maryland, College Park, MD, 20742, USA
| | - J Erbland
- Univ. Grenoble Alpes, CNRS, IRD, Grenoble INP, Institut des Géosciences de l'Environnement (IGE), 54 rue Molière, 38058, Grenoble Cedex 9, France
| | - N Caillon
- Univ. Grenoble Alpes, CNRS, IRD, Grenoble INP, Institut des Géosciences de l'Environnement (IGE), 54 rue Molière, 38058, Grenoble Cedex 9, France
| | - S Hattori
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, G1-17, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa, 226-8502, Japan
| | - N Yoshida
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, G1-17, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa, 226-8502, Japan.,Earth-Life Science Institute, Tokyo Institute of Technology, 2-12-1-IE-1 Ookayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - E Albalat
- Ecole Normale Supérieure de Lyon, CNRS and University of Lyon, 9 rue du Vercors, 69364, Lyon Cedex 7, France
| | - F Albarede
- Ecole Normale Supérieure de Lyon, CNRS and University of Lyon, 9 rue du Vercors, 69364, Lyon Cedex 7, France
| | - J Farquhar
- Department of Geology and Earth System Science Interdisciplinary Center (ESSIC), University of Maryland, College Park, MD, 20742, USA
| |
Collapse
|
19
|
Abstract
Muscle injuries commonly occur in athletes, and in severe cases, they can result in hematoma formation, leading to pain and loss of function. A technique for minimally invasive ultrasound-guided evacuation of muscle hematoma is presented. A simple and quick outpatient procedure done under local anesthesia for faster muscle recovery provided immediate decompression of the muscle compartment, leading to early return to play.
Collapse
Affiliation(s)
| | - Soichi Hattori
- Address correspondence to Soichi Hattori, M.D., Department of Sports Medicine, Kameda Medical Center, 929 Higashi-cho Kamogawa City, Chiba Prefecture 296802, Japan.
| | | | | | | |
Collapse
|
20
|
Chavez J, Hattori S, Kato Y, Takazawa S, Yamada S, Ohuchi H. The use of ultrasonography during minimally invasive Achilles tendon repair to avoid sural nerve injury. J Med Ultrason (2001) 2019; 46:513-514. [PMID: 31165354 DOI: 10.1007/s10396-019-00951-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 05/07/2019] [Indexed: 11/24/2022]
Affiliation(s)
- Joverienne Chavez
- Department of Sports Medicine, Kameda Medical Center, 929 Higashi-cho, Kamogawa City, Chiba Prefecture, 2968602, Japan
| | - Soichi Hattori
- Department of Sports Medicine, Kameda Medical Center, 929 Higashi-cho, Kamogawa City, Chiba Prefecture, 2968602, Japan.
| | - Yuki Kato
- Department of Sports Medicine, Kameda Medical Center, 929 Higashi-cho, Kamogawa City, Chiba Prefecture, 2968602, Japan
| | - Shuzo Takazawa
- Department of Sports Medicine, Kameda Medical Center, 929 Higashi-cho, Kamogawa City, Chiba Prefecture, 2968602, Japan
| | - Shin Yamada
- Department of Sports Medicine, Kameda Medical Center, 929 Higashi-cho, Kamogawa City, Chiba Prefecture, 2968602, Japan
| | - Hiroshi Ohuchi
- Department of Sports Medicine, Kameda Medical Center, 929 Higashi-cho, Kamogawa City, Chiba Prefecture, 2968602, Japan
| |
Collapse
|
21
|
Kato Y, Chavez J, Yamada S, Hattori S, Takazawa S, Ohuchi H. Beta-Tricalcium Phosphate Block for Donor Site Morbidity of the Patella in Anterior Cruciate Ligament Reconstruction Using Bone-Patellar Tendon-Bone Graft. Knee Surg Relat Res 2019; 31:113-119. [PMID: 30893992 PMCID: PMC6561672 DOI: 10.5792/ksrr.18.048] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 12/16/2018] [Accepted: 02/18/2019] [Indexed: 11/03/2022] Open
Abstract
Purpose This study aimed to investigate anterior knee symptoms in patients who underwent anterior cruciate ligament (ACL) reconstruction using bone-patellar tendon-bone (BPTB) graft followed by implantation of a beta-tricalcium phosphate (β-TCP) block as a bone void filler. Materials and Methods We retrospectively reviewed 84 cases of synthetic bone grafting using a β-TCP block for the patellar bone defect in ACL reconstruction with a BPTB autograft. Computed tomography of the operated knee was performed immediately after the surgery to evaluate whether the grafted β-TCP block protruded forward from the anterior surface of the patella. On the basis of the results, the cases were divided into a protrusion group (n=31) and a non-protrusion group (n=53). Anterior knee symptoms at 12 months postoperatively and absorption of the grafted β-TCP block were compared between the two groups. Results Except for patellofemoral crepitus, there was no significant difference in anterior knee symptoms between the two groups (p>0.05). The incidence of patellofemoral crepitus was significantly lower in the protrusion group than in the non-protrusion group (p=0.027). The groups showed no significant difference in β-TCP absorption. Conclusions The present study demonstrated that the protrusion of β-TCP that was used as a bone void filler had no adverse effects.
Collapse
Affiliation(s)
- Yuki Kato
- Department of Sports Medicine, Kameda Medical Center, Kamogawa, Japan
| | - Joverienne Chavez
- Department of Sports Medicine, Kameda Medical Center, Kamogawa, Japan
| | - Shin Yamada
- Department of Sports Medicine, Kameda Medical Center, Kamogawa, Japan
| | - Soichi Hattori
- Department of Sports Medicine, Kameda Medical Center, Kamogawa, Japan
| | - Shuzo Takazawa
- Department of Sports Medicine, Kameda Medical Center, Kamogawa, Japan
| | - Hiroshi Ohuchi
- Department of Sports Medicine, Kameda Medical Center, Kamogawa, Japan
| |
Collapse
|
22
|
Kato Y, Yamada S, Hattori S, Takazawa S, Ohuchi H. Combined autologous chondrocyte implantation and meniscus reconstruction for large chondral defect in the lateral compartment due to discoid lateral meniscus tear: A case report. Regen Ther 2018; 10:64-68. [PMID: 30581898 PMCID: PMC6299147 DOI: 10.1016/j.reth.2018.11.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 11/13/2018] [Accepted: 11/16/2018] [Indexed: 01/03/2023] Open
Abstract
Discoid lateral meniscus tear leads to large chondral defect in the lateral compartment of the knee joint. There are few effective treatments for large chondral defect in both the tibial and femoral sides with severe degenerative lateral meniscus. We have developed a combined autologous chondrocyte implantation and meniscus reconstruction technique using hamstring tendon. This technique allows biological reconstruction and avoids knee arthroplasty. Discoid lateral meniscus tear leads to large chondral defect. A combination of autologous chondrocyte implantation and meniscus reconstruction technique using hamstring tendon is introduced. This novel method allows biological reconstruction.
Collapse
Affiliation(s)
- Yuki Kato
- Department of Sports Medicine, Kameda Medical Center, Chiba, Japan
| | - Shin Yamada
- Department of Sports Medicine, Kameda Medical Center, Chiba, Japan
| | - Soichi Hattori
- Department of Sports Medicine, Kameda Medical Center, Chiba, Japan
| | - Shuzo Takazawa
- Department of Sports Medicine, Kameda Medical Center, Chiba, Japan
| | - Hiroshi Ohuchi
- Department of Sports Medicine, Kameda Medical Center, Chiba, Japan
| |
Collapse
|
23
|
Kato Y, Hirata K, Hattori S, Yamada S, Takazawa S, Ohuchi H. A new method for tensioning of a chronic tibial bony avulsion of the posterior cruciate ligament as a posteromedial bundle and augmentation by anterolateral bundle reconstruction in a bicruciate ligament injury: A case report. Asia Pac J Sports Med Arthrosc Rehabil Technol 2018; 15:13-16. [PMID: 30555791 PMCID: PMC6275229 DOI: 10.1016/j.asmart.2018.11.002] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 11/09/2018] [Accepted: 11/14/2018] [Indexed: 11/23/2022]
Abstract
Multiple ligament injury is associated with high instability; hence, it is necessary to restore stability through application of a reliable treatment strategy. We report our experiences in handling a case of ruptured anterior cruciate ligament (ACL) complicated by chronic bony avulsion of the posterior cruciate ligament (PCL). Favourable results were obtained as a result of ACR reconstruction following a new method for tensioning of the chronic tibial bony avulsion of PCL as a postero-medial bundle and augmentation by PCL anterolateral bundle reconstruction. Favourable posterior stability could be restored through application of this new technique incorporating post-reconstruction PCL reinforcement.
Collapse
Affiliation(s)
- Yuki Kato
- Department of Sports Medicine, Kameda Medical Center, Chiba, Japan.,Department of Orthopedic Surgery, Nihon University, School of Medicine, Tokyo, Japan
| | - Kazuma Hirata
- Department of Orthopedic Surgery, Nihon University, School of Medicine, Tokyo, Japan
| | - Soichi Hattori
- Department of Sports Medicine, Kameda Medical Center, Chiba, Japan
| | - Shin Yamada
- Department of Sports Medicine, Kameda Medical Center, Chiba, Japan
| | - Shuzo Takazawa
- Department of Sports Medicine, Kameda Medical Center, Chiba, Japan
| | - Hiroshi Ohuchi
- Department of Sports Medicine, Kameda Medical Center, Chiba, Japan
| |
Collapse
|
24
|
Kato Y, Chavez J, Yamada S, Hattori S, Takazawa S, Ohuchi H. A large knee osteochondral lesion treated using a combination of osteochondral autograft transfer and second-generation autologous chondrocyte implantation: A case report. Regen Ther 2018; 10:10-16. [PMID: 30525066 PMCID: PMC6260277 DOI: 10.1016/j.reth.2018.10.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Revised: 10/17/2018] [Accepted: 10/23/2018] [Indexed: 12/03/2022] Open
Abstract
Background Full-thickness knee cartilage defects greater than 4 cm2 are best treated with autologous chondrocyte implantation (ACI). Since the articular cartilage surrounding the site of implantation does not always have the normal thickness desirable for successful engraftment, there may be benefit in combining ACI with osteochondral autograft transfer, which provides immediate restoration of condylar contour and mechanical function. Case presentation A 19 year-old male who sustained a traumatic anterolateral femoral condyle osteochondral fracture underwent arthroscopic knee surgery three months after injury to harvest healthy cartilage to be sent to the Japan Tissue Engineering Co., Ltd. (J-TEC) for cartilage culture. The patient was re-admitted after four weeks to undergo a procedure using the Osteochondral Autograft Transfer System (OATS®) and the J-TEC autologous cultured cartilage (JACC®) system. Three 4.75-mm osteochondral cylindrical cores were harvested from non-weight-bearing areas of the knee and were transplanted to the lateral periphery of the lateral femoral condyle defect. The cultured cartilage was implanted to the remaining defect with a periosteal cover harvested from the anterolateral ridge of the lateral femoral condyle. Continuous passive range of motion exercises and gait retraining were immediately initiated, with strict no weight-bearing precaution on the operated limb. Partial weight-bearing was allowed four weeks after surgery, which was progressed to full weight-bearing after another two weeks. Conclusion ACI must be viewed as a complementary procedure to osteochondral transplantation and this hybrid technique appears to be a promising surgical approach and treatment option for large cartilage lesions, especially in the younger population.
Collapse
Affiliation(s)
- Yuki Kato
- Department of Sports Medicine, Kameda Medical Center, Chiba, Japan
| | | | - Shin Yamada
- Department of Sports Medicine, Kameda Medical Center, Chiba, Japan
| | - Soichi Hattori
- Department of Sports Medicine, Kameda Medical Center, Chiba, Japan
| | - Shuzo Takazawa
- Department of Sports Medicine, Kameda Medical Center, Chiba, Japan
| | - Hiroshi Ohuchi
- Department of Sports Medicine, Kameda Medical Center, Chiba, Japan
| |
Collapse
|
25
|
Kameoka T, Nakatani T, Hattori S, Takahashi S, Kuroda H. Surgical treatment and rehabilitation of fractures of amputated limbs. Ann Phys Rehabil Med 2018. [DOI: 10.1016/j.rehab.2018.05.877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
26
|
Baloch N, Hasan OH, Jessar MM, Hattori S, Yamada S. “Sports Ultrasound”, advantages, indications and limitations in upper and lower limbs musculoskeletal disorders. Review article. Int J Surg 2018; 54:333-340. [DOI: 10.1016/j.ijsu.2017.11.034] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 11/18/2017] [Accepted: 11/20/2017] [Indexed: 11/26/2022]
|
27
|
Schäfer CA, Uehara H, Konishi D, Hattori S, Matsukuma H, Murakami M, Shimizu S, Tokita S. Fluoride-fiber-based side-pump coupler for high-power fiber lasers at 2.8 μm. Opt Lett 2018; 43:2340-2343. [PMID: 29762587 DOI: 10.1364/ol.43.002340] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 04/18/2018] [Indexed: 06/08/2023]
Abstract
A side-pump coupler made of fluoride fibers was fabricated and tested. The tested device had a coupling efficiency of 83% and was driven with an incident pump power of up to 83.5 W, demonstrating high-power operation. Stable laser output of 15 W at a wavelength of around 2.8 μm was achieved over 1 h when using an erbium-doped double-clad fiber as the active medium. To the best of our knowledge, this is the first time a fluoride-glass-fiber-based side-pump coupler has been developed. A test with two devices demonstrated further power scalability.
Collapse
|
28
|
Kawahara A, Fukumitsu C, Azuma K, Taira T, Abe H, Takase Y, Murata K, Sadashima E, Hattori S, Naito Y, Akiba J. Cover Image. Cytopathology 2018. [DOI: 10.1111/cyt.12543] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
29
|
Kawahara A, Fukumitsu C, Azuma K, Taira T, Abe H, Takase Y, Murata K, Sadashima E, Hattori S, Naito Y, Akiba J. A Combined test using both cell sediment and supernatant cell-free DNA in pleural effusion shows increased sensitivity in detecting activating EGFR mutation in lung cancer patients. Cytopathology 2018; 29:150-155. [PMID: 29363841 DOI: 10.1111/cyt.12517] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/23/2017] [Indexed: 12/28/2022]
Abstract
INTRODUCTION The aim of this study was to examine whether a combined test using both cell sediment and supernatant cytology cell-free DNA (ccfDNA) is more useful in detecting EGFR mutation than using cell sediment DNA or supernatant ccfDNA alone in pleural effusion of lung cancer patients. METHODS A total of 74 lung adenocarcinoma patients with paired samples between primary tumour and corresponding metastatic tumour with both cell sediment and supernatant ccfDNA of pleural effusion cytology were enrolled in this study. Cell sediment and supernatant ccfDNA were analysed separately for EGFR mutations by polymerase chain reaction. RESULTS Out of 45 patients with mutant EGFR in primary tumours, EGFR mutations were detected in 23 cell sediments of corresponding metastases (sensitivity; 51.1%) and 20 supernatant ccfDNA corresponding metastases (sensitivity; 44.4%). By contrast, the combined test detected EGFR mutations in 27 corresponding metastases (sensitivity; 60.0%), and had a higher sensitivity than the cell sediment or the supernatant ccfDNA alone (P < .05). Out of 45 patients with mutant EGFR, 24, three and 18 were cytologically diagnosed as positive, atypical or negative, respectively. The detection rate in the combined test was highest (95.8%) in the positive group, and mutant EGFR was also detected in four of 18 samples (22.2%) in the negative group. CONCLUSIONS A combined test using both cell sediment DNA and supernatant ccfDNA samples increases the concordance rate of EGFR mutations between primary tumour and corresponding metastases. Our findings indicate that supernatant ccfDNA is useful even in cases where the cytological diagnosis is negative.
Collapse
Affiliation(s)
- A Kawahara
- Department of Diagnostic Pathology, Kurume University Hospital, Kurume, Japan
| | - C Fukumitsu
- Department of Diagnostic Pathology, Kurume University Hospital, Kurume, Japan
| | - K Azuma
- Division of Respirology, Neurology, and Rheumatology, Department of Internal Medicine, Kurume University School of Medicine, Kurume, Japan
| | - T Taira
- Department of Diagnostic Pathology, Kurume University Hospital, Kurume, Japan
| | - H Abe
- Department of Diagnostic Pathology, Kurume University Hospital, Kurume, Japan
| | - Y Takase
- Department of Diagnostic Pathology, Kurume University Hospital, Kurume, Japan
| | - K Murata
- Department of Diagnostic Pathology, Kurume University Hospital, Kurume, Japan
| | - E Sadashima
- Department of Clinical Laboratory, Tenjinkai Shin-Koga Hospital, Kurume, Japan
| | - S Hattori
- Department of Integrated Medicine, Biomedical Statistics, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Y Naito
- Department of Diagnostic Pathology, Kurume University Hospital, Kurume, Japan
| | - J Akiba
- Department of Diagnostic Pathology, Kurume University Hospital, Kurume, Japan
| |
Collapse
|
30
|
Yokota H, Mukai H, Hattori S, Yamada K, Anzai Y, Uno T. MR Imaging of the Superior Cervical Ganglion and Inferior Ganglion of the Vagus Nerve: Structures That Can Mimic Pathologic Retropharyngeal Lymph Nodes. AJNR Am J Neuroradiol 2017; 39:170-176. [PMID: 29122764 DOI: 10.3174/ajnr.a5434] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 08/28/2017] [Indexed: 01/12/2023]
Abstract
BACKGROUND AND PURPOSE The superior cervical ganglion and inferior ganglion of the vagus nerve can mimic pathologic retropharyngeal lymph nodes. We studied the cross-sectional anatomy of the superior cervical ganglion and inferior ganglion of the vagus nerve to evaluate how they can be differentiated from the retropharyngeal lymph nodes. MATERIALS AND METHODS This retrospective study consists of 2 parts. Cohort 1 concerned the signal intensity of routine neck MR imaging with 2D sequences, apparent diffusion coefficient, and contrast enhancement of the superior cervical ganglion compared with lymph nodes with or without metastasis in 30 patients. Cohort 2 used 3D neurography to assess the morphology and spatial relationships of the superior cervical ganglion, inferior ganglion of the vagus nerve, and the retropharyngeal lymph nodes in 50 other patients. RESULTS All superior cervical ganglions had homogeneously greater enhancement and lower signal on diffusion-weighted imaging than lymph nodes. Apparent diffusion coefficient values of the superior cervical ganglion (1.80 ± 0.28 × 10-3mm2/s) were significantly higher than normal and metastatic lymph nodes (0.86 ± 0.10 × 10-3mm2/s, P < .001, and 0.73 ± 0.10 × 10-3mm2/s, P < .001). Ten and 13 of 60 superior cervical ganglions were hypointense on T2-weighted images and had hyperintense spots on both T1- and T2-weighted images, respectively. The latter was considered fat tissue. The largest was the superior cervical ganglion, followed in order by the retropharyngeal lymph node and the inferior ganglion of the vagus nerve (P < .001 to P = .004). The highest at vertebral level was the retropharyngeal lymph nodes, followed, in order, by the inferior ganglion of the vagus nerve and the superior cervical ganglion (P < .001 to P = .001). The retropharyngeal lymph node, superior cervical ganglion, and inferior ganglion of the vagus nerve formed a line from anteromedial to posterolateral. CONCLUSIONS The superior cervical ganglion and the inferior ganglion of the vagus nerve can be almost always differentiated from retropharyngeal lymph nodes on MR imaging by evaluating the signal, size, and position.
Collapse
Affiliation(s)
- H Yokota
- From Diagnostic Radiology and Radiation Oncology (H.Y., H.M., S.H., T.U.), Graduate School of Medicine, Chiba University, Chiba, Japan
| | - H Mukai
- From Diagnostic Radiology and Radiation Oncology (H.Y., H.M., S.H., T.U.), Graduate School of Medicine, Chiba University, Chiba, Japan
| | - S Hattori
- From Diagnostic Radiology and Radiation Oncology (H.Y., H.M., S.H., T.U.), Graduate School of Medicine, Chiba University, Chiba, Japan
| | - K Yamada
- Department of Radiology (K.Y.), Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Y Anzai
- Department of Radiology (Y.A.), University of Utah School of Medicine Health Sciences, Salt Lake City, Utah
| | - T Uno
- From Diagnostic Radiology and Radiation Oncology (H.Y., H.M., S.H., T.U.), Graduate School of Medicine, Chiba University, Chiba, Japan
| |
Collapse
|
31
|
Bautista M, Ahmedzai S, Bouzid K, Gibson R, Gumara Y, Hassan A, Hattori S, Keefe D, Kraychete D, Lee D, Tamura K, Wang J. A framework for education and advocacy for optimal cancer pain management in resource-limited settings. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx676.005] [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: 11/13/2022] Open
|
32
|
Ohuchi H, Torres RJL, Shinga K, Ichikawa K, Kato Y, Hattori S, Yamada S. Ultrasound-Assisted Posteromedial Portal Placement of the Elbow Joint to Prevent Ulnar Nerve Injury. Arthrosc Tech 2017; 6:e1087-e1091. [PMID: 28970996 PMCID: PMC5621707 DOI: 10.1016/j.eats.2017.03.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [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: 11/14/2016] [Accepted: 03/16/2017] [Indexed: 02/03/2023] Open
Abstract
Direct posterior and posterolateral portals are the standard portals used in posterior elbow arthroscopy. A posteromedial portal in the elbow is not recommended because of its proximity to the ulnar nerve. However, iatrogenic injuries to the ulnar nerve have been reported after elbow arthroscopy using the standard posterior portals, especially in posteromedial elbow joint pathologies. We present a surgical technique applicable to posteromedial elbow pathology by using ultrasound-assisted posteromedial portal placement of the elbow joint. Through this technique, the position of the ulnar nerve is identified prior to portal creation and the instruments are introduced from an ulnar to radial direction, thus avoiding ulnar nerve injury.
Collapse
Affiliation(s)
- Hiroshi Ohuchi
- Address correspondence to Hiroshi Ohuchi, M.D., Ph.D., Department of Sports Medicine, Kameda Medical Center, 929 Higashi-cho, Kamogawa-shi, Chiba-ken, Japan 2968602.Department of Sports MedicineKameda Medical Center929 Higashi-choKamogawa-shiChiba-ken2968602Japan
| | | | | | | | | | | | | |
Collapse
|
33
|
Ohuchi H, Hattori S, Shinga K, Ichikawa K, Yamada S. Ultrasound-Assisted Endoscopic Carpal Tunnel Release. Arthrosc Tech 2016; 5:e483-7. [PMID: 27656366 PMCID: PMC5021238 DOI: 10.1016/j.eats.2016.01.035] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Accepted: 01/27/2016] [Indexed: 02/03/2023] Open
Abstract
Various surgical procedures for carpal tunnel syndrome exist, such as open release, ultrasound-guided percutaneous release, and endoscopic release. Postoperative pain, scarring, and slow recovery to normal function are reported complications of open release. Damage to vessels and the median nerve and its branches underlying the transverse carpal ligament is a reported complication of ultrasound-guided percutaneous release. Damage to the superficial palmar arch and incomplete release are reported complications of endoscopic release. By performing endoscopic carpal tunnel release with ultrasound assistance, we could visualize neurovascular structures directly with the endoscope and also indirectly with ultrasound to minimize complications. We could also evaluate the morphologic changes of the median nerve dynamically before and after the release. We discuss the technique for this procedure and outline pearls and pitfalls for success.
Collapse
Affiliation(s)
- Hiroshi Ohuchi
- Address correspondence to Hiroshi Ohuchi, M.D., Ph.D., Department of Sports Medicine, Kameda Medical Center, 929 Higashi-cho, Kamogawa-shi, Chiba-ken, 296-8602, Japan.Department of Sports MedicineKameda Medical Center929 Higashi-choKamogawa-shiChiba-ken296-8602Japan
| | | | | | | | | |
Collapse
|
34
|
Ishii N, Teye K, Fukuda S, Uehara R, Hachiya T, Koga H, Tsuchisaka A, Numata S, Ohyama B, Tateishi C, Tsuruta D, Furumura M, Hattori S, Kawakami T, Ohata C, Hashimoto T. Anti-desmocollin autoantibodies in nonclassical pemphigus. Br J Dermatol 2015; 173:59-68. [PMID: 25640111 DOI: 10.1111/bjd.13711] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/25/2015] [Indexed: 11/26/2022]
Abstract
BACKGROUND Despite the established pathogenic role of anti-desmoglein (Dsg) antibodies in classical pemphigus, the significance of autoantibodies to another desmosomal cadherin, desmocollin (Dsc) is at present unknown. No consistent immunoassay for immunoglobulin (Ig) G autoantibodies to Dscs has been developed. OBJECTIVES The aim of this study was to develop reliable assays to detect anti-Dsc autoantibodies. METHODS We expressed soluble recombinant proteins (RPs) of human Dsc1-3 in mammalian cells and examined sera of various types of pemphigus, including 79 paraneoplastic pemphigus (PNP) sera, by novel enzyme-linked immunosorbent assays (ELISAs) using the RPs. We also performed ELISAs of Dsc baculoproteins and used the complementary DNA (cDNA) transfection method, and compared the results with those of mammalian ELISAs. RESULTS Through mammalian ELISAs, IgG autoantibodies to Dsc1, Dsc2 and Dsc3 were detected in 16.5%, 36.7% and 59.5% of PNP sera, respectively, and considerable numbers of pemphigus herpetiformis (PH) and pemphigus vegetans (PVeg) sera reacted strongly with Dsc1 and Dsc3. Mammalian ELISAs were highly specific and more sensitive than baculoprotein ELISAs or the cDNA transfection method. Several Dsc-positive sera, particularly PH sera, showed no reactivity with Dsgs. The reactivity of PNP serum and PVeg serum with Dscs was not abolished by pre-absorption with Dsg RPs. CONCLUSIONS The results of these novel ELISAs indicated that IgG anti-Dsc autoantibodies were frequently detected and potentially pathogenic in nonclassical pemphigus.
Collapse
Affiliation(s)
- N Ishii
- Department of Dermatology, Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology, 67 Asahimachi, Kurume, Fukuoka, 830-0011, Japan
| | - K Teye
- Department of Dermatology, Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology, 67 Asahimachi, Kurume, Fukuoka, 830-0011, Japan
| | - S Fukuda
- Department of Dermatology, Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology, 67 Asahimachi, Kurume, Fukuoka, 830-0011, Japan
| | - R Uehara
- Intellectual Property and Clinical Development Department/Business Development Division, Medical & Biological Laboratories Co., Ltd, Nagoya, Japan
| | - T Hachiya
- Antibody Engineering Department/Manufacturing Division, Medical & Biological Laboratories Co., Ltd, Nagoya, Japan
| | - H Koga
- Department of Dermatology, Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology, 67 Asahimachi, Kurume, Fukuoka, 830-0011, Japan
| | - A Tsuchisaka
- Department of Dermatology, Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology, 67 Asahimachi, Kurume, Fukuoka, 830-0011, Japan
| | - S Numata
- Department of Dermatology, Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology, 67 Asahimachi, Kurume, Fukuoka, 830-0011, Japan
| | - B Ohyama
- Department of Dermatology, Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology, 67 Asahimachi, Kurume, Fukuoka, 830-0011, Japan
| | - C Tateishi
- Department of Dermatology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - D Tsuruta
- Department of Dermatology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - M Furumura
- Department of Dermatology, Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology, 67 Asahimachi, Kurume, Fukuoka, 830-0011, Japan
| | - S Hattori
- Biostatistics Center, Kurume University, Kurume, Japan
| | - T Kawakami
- Department of Dermatology, St Marianna University School of Medicine, Kawasaki, Japan
| | - C Ohata
- Department of Dermatology, Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology, 67 Asahimachi, Kurume, Fukuoka, 830-0011, Japan
| | - T Hashimoto
- Department of Dermatology, Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology, 67 Asahimachi, Kurume, Fukuoka, 830-0011, Japan
| |
Collapse
|
35
|
Hayashi H, Kawabata Y, Fujii T, Hattori S, Yamamoto Y, Eiji H, Takashi S, Tajima Y. 445. Validation of POSSUM scoring system in abdominal surgery for patients with malignant diseases: A multi-institutional analysis. Eur J Surg Oncol 2014. [DOI: 10.1016/j.ejso.2014.08.433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
|
36
|
Otabe Y, Hattori S, Yamatsu K. Sedentary behavior and academic performance in Japanese junior high school students. Sci Sports 2014. [DOI: 10.1016/j.scispo.2014.08.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
37
|
Azuma K, Ota K, Kawahara A, Hattori S, Iwama E, Harada T, Matsumoto K, Takayama K, Takamori S, Kage M, Hoshino T, Nakanishi Y, Okamoto I. Association of PD-L1 overexpression with activating EGFR mutations in surgically resected nonsmall-cell lung cancer. Ann Oncol 2014; 25:1935-1940. [PMID: 25009014 DOI: 10.1093/annonc/mdu242] [Citation(s) in RCA: 497] [Impact Index Per Article: 49.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Recent clinical trials have shown that immune-checkpoint blockade yields a clinical response in a subset of individuals with advanced nonsmall-cell lung cancer (NSCLC). We examined whether the expression of programmed death-ligand 1 (PD-L1) is related to clinicopathologic or prognostic factors in patients with surgically resected NSCLC. PATIENTS AND METHODS The expression of PD-L1 was evaluated by immunohistochemical analysis in 164 specimens of surgically resected NSCLC. Cell surface expression of PD-L1 in NSCLC cell lines was quantified by flow cytometry. RESULTS Expression of PD-L1 in tumor specimens was significantly higher for women than for men, for never smokers than for smokers, and for patients with adenocarcinoma than for those with squamous cell carcinoma. Multivariate analysis revealed that the presence of epidermal growth factor receptor gene (EGFR) mutations and adenocarcinoma histology were significantly associated with increased PD-L1 expression in a manner independent of other factors. Cell surface expression of PD-L1 was also significantly higher in NSCLC cell lines positive for activating EGFR mutations than in those with wild-type EGFR. The EGFR inhibitor erlotinib downregulated PD-L1 expression in the former cell lines but not in the latter, suggesting that PD-L1 expression is increased by EGFR signaling conferred by activating EGFR mutations. A high level of PD-L1 expression in resected tumor tissue was associated with a significantly shorter overall survival for NSCLC patients. CONCLUSIONS High expression of PD-L1 was associated with the presence of EGFR mutations in surgically resected NSCLC and was an independent negative prognostic factor for this disease.
Collapse
Affiliation(s)
- K Azuma
- Division of Respirology, Neurology, and Rheumatology, Department of Internal Medicine, Kurume University School of Medicine, Kurume
| | - K Ota
- Research Institute for Disease of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka
| | - A Kawahara
- Department of Diagnostic Pathology, Kurume University Hospital, Kurume
| | - S Hattori
- Biostatistics Center, Kurume University, Kurume
| | - E Iwama
- Research Institute for Disease of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka
| | - T Harada
- Research Institute for Disease of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka
| | - K Matsumoto
- Research Institute for Disease of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka
| | - K Takayama
- Research Institute for Disease of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka
| | - S Takamori
- Department of Surgery, Kurume University School of Medicine, Kurume
| | - M Kage
- Department of Diagnostic Pathology, Kurume University Hospital, Kurume
| | - T Hoshino
- Division of Respirology, Neurology, and Rheumatology, Department of Internal Medicine, Kurume University School of Medicine, Kurume
| | - Y Nakanishi
- Research Institute for Disease of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka; Center for Clinical and Translational Research, Kyushu University Hospital, Fukuoka, Japan
| | - I Okamoto
- Center for Clinical and Translational Research, Kyushu University Hospital, Fukuoka, Japan.
| |
Collapse
|
38
|
Yamaguchi T, Kawahara A, Hattori S, Taira T, Abe H, Sanada S, Akiba J, Nishio S, Ushijima K, Kamura T, Kage M. Cytological nuclear atypia classification can predict prognosis in patients with endometrial cancer. Cytopathology 2014; 26:157-66. [DOI: 10.1111/cyt.12149] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/17/2014] [Indexed: 12/29/2022]
Affiliation(s)
- T. Yamaguchi
- Department of Diagnostic Pathology; Kurume University Hospital; Kurume Japan
| | - A. Kawahara
- Department of Diagnostic Pathology; Kurume University Hospital; Kurume Japan
| | - S. Hattori
- Biostatistics Center; Kurume University; Kurume Japan
| | - T. Taira
- Department of Diagnostic Pathology; Kurume University Hospital; Kurume Japan
| | - H. Abe
- Department of Diagnostic Pathology; Kurume University Hospital; Kurume Japan
| | - S. Sanada
- Department of Pathology; Kurume University School of Medicine; Kurume Japan
| | - J. Akiba
- Department of Pathology; Kurume University School of Medicine; Kurume Japan
| | - S. Nishio
- Department of Obstetrics and Gynecology; Kurume University School of Medicine; Kurume Japan
| | - K. Ushijima
- Department of Obstetrics and Gynecology; Kurume University School of Medicine; Kurume Japan
| | - T. Kamura
- Department of Obstetrics and Gynecology; Kurume University School of Medicine; Kurume Japan
| | - M. Kage
- Department of Diagnostic Pathology; Kurume University Hospital; Kurume Japan
| |
Collapse
|
39
|
Ikegami K, Konno A, Hattori S, Matsuda C, Setou M. Severe ciliopathy-related phenotypes in mice with dysregulation of tubulin polyglutamylation. Cilia 2012. [PMCID: PMC3555832 DOI: 10.1186/2046-2530-1-s1-p90] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
|
40
|
Hattori S, Li Q, Matsui N, Nishino H. Treadmill running combined with microdialysis can evaluate motor deficit and improvement following dopaminergic grafts in 6-OHDA lesioned rats. Restor Neurol Neurosci 2012; 6:65-72. [PMID: 21551732 DOI: 10.3233/rnn-1993-6107] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
To evaluate the physiological role of striatal dopamine (DA) during exercise and the mechanism of functional recovery mediated by grafted DAergic neurons, the locomotor ability (treadmill running) and DA turnover were investigated using treadmill running combined with in vivo microdialysis in the intact control rats, 6-hydroxydopamine (6-OHDA) lesioned rats (hemi-parkinsonian model rats) and DAergic cell grafted rats. The 3 groups of rats were trained to run on a straight treadmill at a speed of 1,800 cm/min for 20 min every day for 7 consecutive days. If the rats could not follow the speed they got electrostimulation (ES) from the grid behind the treadmill belt. The numbers of ES rats received during treadmill running were counted to quantify the locomotor ability. Control rats could keep up with the treadmill easily (0-1 ES/10 min), whereas lesioned rats could not follow the speed (80-100 ES/10 min). Most of the grafted rats received only a few ES, but a few received over 100 ES/10 min. Extracellular DA and its metabolites, dihydroxyphenyl acetic acid (DOPAC) and homovanillic acid (HVA), were measured by in vivo microdialysis and high-performance liquid chromatography (HPLC) during and after treadmill running. In control rats the basal levels of DA, DOPAC and HVA were 2.3 fmol/μl, 1,109.8 fmol/μl and 612.2 fmol/μl, respectively. They increased up to 130%, 140% and 160% by running. In 6-OHDA lesioned rats basal values of DA, DOPAC and HVA were less than 10% of controls. We did not perform microdialysis in these rats since they got too much ES during running. In grafted rats that showed good recovery in locomotor ability, DA returned to almost control level (1.9 fmol/μl), but those of DOPAC (127.8 fmol/μl) and HVA (100.2 fmol/μl) were still low. DA, DOPAC and HVA increased up to 130%, 130% and 150% by running in a similar pattern as in intact rats. These results suggest that grafted neurons can release and metabolize DA in the host striatum both tonically and phasically in relation with internal and external stimuli and also suggest that treadmill running ability is a good indicator of DA turnover in the striatum. Thus, the treadmill running test with microdialysis is useful for quantitative evaluation of motor function in grafted animals.
Collapse
Affiliation(s)
- S Hattori
- Department of Orthopedics, Nagoya City University Medical School, Mizuho-ku, Nagoya 467, Japan Department of Physiology, Nagoya City University Medical School, Mizuho-ku, Nagoya 467, Japan
| | | | | | | |
Collapse
|
41
|
Sugiyama T, Yoneda M, Kuraishi T, Hattori S, Inoue Y, Sato H, Kai C. Measles virus selectively blind to signaling lymphocyte activation molecule as a novel oncolytic virus for breast cancer treatment. Gene Ther 2012; 20:338-47. [PMID: 22717740 DOI: 10.1038/gt.2012.44] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Oncolytic viruses hold much promise as novel therapeutic agents that can be combined with conventional therapeutic modalities. Measles virus (MV) is known to enter cells using the signaling lymphocyte activation molecule (SLAM), which is expressed on cells of the immune system. Although human breast cancer cell lines do not express SLAM, we found that a wild-type MV (HL strain) efficiently infected various breast cancer cell lines, causing cell death. Based on this finding, we used reverse genetics to generate a recombinant MV selectively unable to use SLAM (rMV-SLAMblind). The rMV-SLAMblind lacked infectivity for SLAM-positive lymphoid cells, while retaining oncolytic activity against breast cancer cells. We showed that, unlike the MV vaccine strains, rMV-SLAMblind used PVRL4 (polio virus receptor-related 4) as a receptor to infect breast cancer cells and not the ubiquitously expressed CD46. Consistent with this, rMV-SLAMblind infected CD46-positive primary normal human cells at a much-reduced level, whereas a vaccine strain of the Edmonston lineage (rMV-Edmonston) efficiently infected and killed them. The rMV-SLAMblind showed antitumor activity against human breast cancer xenografts in immunodeficient mice. The oncolytic activity of rMV-SLAMblind was significantly greater than that of rMV-Edmonston. To assess the in vivo safety, three monkeys seronegative for MV were inoculated with rMV-SLAMblind, and no clinical symptoms were documented. On the basis of these results, rMV-SLAMblind could be a promising candidate as a novel oncolytic virus for breast cancer treatment.
Collapse
Affiliation(s)
- T Sugiyama
- Laboratory Animal Research Center, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | | | | | | | | | | | | |
Collapse
|
42
|
Takenaka M, Toh U, Seki N, Kawahara A, Hattori S, Iwakuma N, Yamaguchi R, Yano H, Shirouzu K, Kage M. 335 FOXP3 Expression in Tumor Cells Associated with the Prognosis in Breast Cancer Patients. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)70401-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
43
|
Tsujikawa M, Nishigaki H, Yoshikawa M, Furuki R, Takahashi K, Adan-Kubo J, Shimamura Y, Urayama T, Hattori S, Sakai K, Yunoki M, Ikuta K. Variability of parvovirus B19 genotype 2 in plasma products with different compositions in the inactivation sensitivity by liquid-heating. Vox Sang 2011; 102:93-9. [PMID: 21781123 DOI: 10.1111/j.1423-0410.2011.01523.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND AND OBJECTIVES Our previous report showed that parvovirus B19 genotype 1 in different solutions derived from plasma preparations showed different heat-sensitivity patterns during liquid-heating. In this study, we similarly examined B19 genotype 2. MATERIALS AND METHODS Two plasma samples one containing B19 genotype 1 and the other genotype 2 DNA were used. Four process samples collected immediately before the heat treatment step in the manufacture of albumin, immunoglobulin, haptoglobin and antithrombin preparations were spiked with B19 and subsequently treated at 60°C for 10 h. A low pH immunoglobulin solution was also spiked with B19 and treated at room temperature for 14 days. Infectivity was then measured. RESULTS B19 genotype 2, similar to genotype 1, showed three patterns of inactivation: (i) a rapid inactivation in the albumin and immunoglobulin preparations, (ii) a slow inactivation in the haptoglobin preparation and (iii) only limited inactivation in the antithrombin preparation. Its sensitivity in the low pH immunoglobulin solutions also resembled that of genotype 1. CONCLUSION Both genotypes 1 and 2 of B19 varied in sensitivity to liquid-heating and low pH among different plasma preparations.
Collapse
Affiliation(s)
- M Tsujikawa
- Osaka Research Laboratory, Research and Development Division, Benesis Corporation, Osaka, Japan.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
44
|
Ide H, Kikuchi E, Yasumizu Y, Hattori S, Hasegawa M, Miyajima A, Oya M, Kim SY, Song SY, Kim MS, Lee JY, Lee HM, Choi HY, Yoo NJ, Lee SH, Obara W, Tsunoda T, Yoshida K, Takata R, Togashi A, Katagiri T, Nakamura Y, Fujioka T. BASIC SCIENCE. Jpn J Clin Oncol 2011. [DOI: 10.1093/jjco/hyq253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
45
|
Hattori Y, Jojima T, Tomizawa A, Satoh H, Hattori S, Kasai K, Hayashi T. A glucagon-like peptide-1 (GLP-1) analogue, liraglutide, upregulates nitric oxide production and exerts anti-inflammatory action in endothelial cells. Diabetologia 2010; 53:2256-63. [PMID: 20593161 DOI: 10.1007/s00125-010-1831-8] [Citation(s) in RCA: 143] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2010] [Accepted: 05/24/2010] [Indexed: 01/12/2023]
Abstract
AIMS/HYPOTHESIS Glucagon-like peptide-1 (GLP-1), a member of the proglucagon-derived peptide family, was seen to exert favourable actions on cardiovascular function in preclinical and clinical studies. The mechanisms through which GLP-1 modulates cardiovascular function are complex and incompletely understood. We thus investigated whether the GLP-1 analogue, liraglutide, which is an acylated GLP-1, has protective effects on vascular endothelial cells. METHODS Nitrite and nitrate were measured in medium with an automated nitric oxide detector. Endothelial nitric oxide synthase (eNOS) activation was assessed by evaluating the phosphorylation status of the enzyme and evaluating eNOS activity by citrulline synthesis. Nuclear factor kappaB (NF-kappaB) activation was assessed by reporter gene assay. RESULTS Liraglutide dose-dependently increased nitric oxide production in HUVECs. It also caused eNOS phosphorylation, potentiated eNOS activity and restored the cytokine-induced downregulation of eNOS (also known as NOS3) mRNA levels, which is dependent on NF-kappaB activation. We therefore examined the effect of liraglutide on TNFalpha-induced NF-kappaB activation and NF-kappaB-dependent expression of proinflammatory genes. Liraglutide dose-dependently inhibited NF-kappaB activation and TNFalpha-induced IkappaB degradation. It also reduced TNFalpha-induced MCP-1 (also known as CCL2), VCAM1, ICAM1 and E-selectin mRNA expression. Liraglutide-induced enhancement of nitric oxide production and suppression of NF-kappaB activation were attenuated by the AMP-activated protein kinase (AMPK) inhibitor compound C or AMPK (also known as PRKAA1) small interfering RNA. Indeed, liraglutide induced phosphorylation of AMPK, which occurs through a signalling pathway independent of cyclic AMP. CONCLUSIONS/INTERPRETATION Liraglutide exerts an anti-inflammatory effect on vascular endothelial cells by increasing nitric oxide production and suppressing NF-kappaB activation, partly at least through AMPK activation. These effects may explain some of the observed vasoprotective properties of liraglutide, as well as its beneficial effects on the cardiovascular system.
Collapse
Affiliation(s)
- Y Hattori
- Department of Endocrinology and Metabolism, Dokkyo University School of Medicine, Mibu, Tochigi 321-0293, Japan.
| | | | | | | | | | | | | |
Collapse
|
46
|
Ishikura K, Yoshikawa N, Hattori S, Sasaki S, Iijima K, Nakanishi K, Matsuyama T, Yata N, Ando T, Honda M. Treatment with microemulsified cyclosporine in children with frequently relapsing nephrotic syndrome. Nephrol Dial Transplant 2010; 25:3956-62. [DOI: 10.1093/ndt/gfq318] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
47
|
Fujita H, Ozawa S, Kuwano H, Ueda Y, Hattori S, Yanagawa T. Esophagectomy for cancer: clinical concerns support centralizing operations within the larger hospitals. Dis Esophagus 2010; 23:145-52. [PMID: 19515188 DOI: 10.1111/j.1442-2050.2009.00986.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Esophagectomy needs experienced surgical techniques and a well-trained perioperative care team. There are now many reports that the mortality rate after esophagectomy is higher in those hospitals with a low volume of esophagectomy and/or low surgeon's volume. The purpose of this study is to decide the respective numbers of esophagectomy operations per year to define low-volume and high-volume hospitals in Japan. If medical policy aims to further reduce mortality and morbidity associated with esophagectomy, then esophagectomy operations should be further centralized, away from low-volume hospitals, into high-volume hospitals. The Japanese Association for Thoracic Surgery has accumulated the surgical outcomes from 31 380 esophagectomy operations, registered from 709 institutes during the period from 2001 to 2006. These institutes are here classified into six groups according to the number of esophagectomy operations per year as 4 or less, 5-9, 10-19, 20-39, 40-79, and 80 or more. Using a statistical model-selection procedure by information criteria, these six groups are then classified into three categories as low-volume, medium-volume, and as high-volume hospitals. Among the 31 380 patients registered, overall, 390 patients (1.2%) died within 30 days, and 1187 patients (3.8%) died during the primary hospital stay. The odds ratio of the greatest volume group to the minimum volume group was 0.307 for the 30-day mortality rate, and 0.288 for the in-hospital mortality rate. For both the 30-day mortality rate and the in-hospital mortality rate, a hospital with less than five esophagectomy operations per year was classified as a low-volume hospital. A hospital with 40 or more esophagectomy operations per year was classified as a high-volume hospital. Concerning the number of esophagectomy operations performed per year in Japan, low-volume hospitals are defined as those where esophagectomy is performed less than five times per year, and high-volume hospitals are defined as those where esophagectomy is performed 40 or more times per year. If medical policy in Japan aims to further decrease the mortality after esophagectomy, then esophagectomy operations should be limited in these identified low-volume hospitals.
Collapse
Affiliation(s)
- H Fujita
- Department of Surgery, School of Medicine, Kurume University, Kurume, Fukuoka 830-0011, Japan.
| | | | | | | | | | | | | |
Collapse
|
48
|
Suda M, Kubota F, Aihara Y, Hiraoka T, Aoyama Y, Hattori S, Fukuda M, Mikuni M. A case of lithium intoxication with periodic sharp waves. Pharmacopsychiatry 2009; 42:122-3. [PMID: 19452381 DOI: 10.1055/s-0028-1112131] [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] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
49
|
Takeshima N, Miyakawa H, Okuda K, Hattori S, Hagiwara S, Takatani J, Noguchi T. Evaluation of the therapeutic results of epiduroscopic adhesiolysis for failed back surgery syndrome. Br J Anaesth 2009; 102:400-7. [PMID: 19164308 DOI: 10.1093/bja/aen383] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND No data for patients with failed back surgery syndrome (FBSS) based on the location of adhesions separated by epiduroscopic adhesiolysis have been reported. METHODS We performed epiduroscopic adhesiolysis on 28 FBSS patients to examine the impact of differences in the locations of the separated regions on the treatment results. We performed fluoroscopic imaging through the sacral hiatus to assess the condition of adhesions in the epidural space during the post-adhesiolysis observation period. RESULTS In patients in whom only the epidural space was separated by adhesiolysis, there was a significant improvement in the Roland-Morris disability questionnaire (RDQ) score until 12 weeks after adhesiolysis, but the score gradually returned to the preoperative value thereafter. Among patients in whom the nerve root responsible for radicular pain was separated, there was a long-term improvement in the RDQ, Oswestry disability index 2.0 (ODI), and Japanese Orthopedic Association Assessment of Treatment (JOA) scores. Among patients in whom both the epidural space and the nerve root responsible for pain were separated, there was a 12 week improvement in the RDQ score and 24 week improvements in the ODI and JOA scores. CONCLUSIONS Progressive epidural imaging after adhesiolysis suggested that pain was caused by re-adhesion around the nerve root. Since re-adhesion of the nerve root required some time, the effect of adhesiolysis was maintained for extended periods in these cases. We suggest that epiduroscopic adhesiolysis is an effective therapy for FBSS patients, and that adhesiolysis of the nerve root may exhibit the long-term (24 weeks) efficacy in patients with pain.
Collapse
Affiliation(s)
- N Takeshima
- Oita University Faculty of Medicine, Department of Anesthesiology and Intensive Care Medicine, 1-1 Idaigaoka, Hasama, Oita 879-5593, Japan.
| | | | | | | | | | | | | |
Collapse
|
50
|
Kawahara A, Akagi Y, Hattori S, Mizobe T, Shirouzu K, Ono M, Yanagawa T, Kuwano M, Kage M. Higher expression of deoxyuridine triphosphatase (dUTPase) may predict the metastasis potential of colorectal cancer. J Clin Pathol 2008; 62:364-9. [PMID: 19052026 PMCID: PMC2656677 DOI: 10.1136/jcp.2008.060004] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [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] [Indexed: 11/06/2022]
Abstract
Aims: 5-Fluorouracil (5-FU) is one of the most widely used anticancer drugs; however, the activity of 5-FU is determined by the presence of several enzymes that limit its activation or degradation, and these include dihydropyrimidine dehydrogenase (DPD), orotate phosphoribosyl transferase (OPRT), thymidylate synthase (TS), thymidine kinase (TK), thymidine phosphorylase (TP) and deoxyuridine triphosphatase (dUTPase). The aim of this study was to compare the expression levels of these enzymes between the primary colorectal cancer of patients with and without distant metastases. Furthermore, there was a comparison of these expression levels between the primary tumour and the corresponding metastasis. Methods: Of 55 patients with colorectal cancer, 20 had no metastasis and the other 35 had distant metastasis. A strong expression was classified as positive, while weak to moderate or no expression was negative by immunohistochemistry. Results: Of the six 5-FU-related enzymes, the numbers of patients with expression of dUTPase (54% versus 15%; p = 0.005), TK (26% versus 0%; p = 0.019) and DPD (17% versus 45%; p = 0.033) were significantly different in those with primary tumours with metastasis compared with those with non-metastasis, respectively. The altered expression of OPRT (34.3%), TS (40.0%) and dUTPase (42.9%) was significantly greater from primary to metastasis among the 35 patients with metastasis. By contrast, the expression of OPRT, TS and dUTPase was decreased in 6, 5 and 7 patients, respectively, in metastatic sites. Conclusions: From this comparative study of the six 5-FU-related enzymes in colorectal cancer, the expression of dUTPase was most significantly different between primary tumours and their corresponding metastatic tumour. It is suggested that dUTPase may be a predictive biomarker for the metastatic potential of colorectal cancer.
Collapse
Affiliation(s)
- A Kawahara
- Department of Diagnostic Pathology, Kurume University Hospital, Japan.
| | | | | | | | | | | | | | | | | |
Collapse
|