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Ohtsuki K, Sawada M, Yoshizaki W, Ishimori T, Sawamoto N, Fushimi Y, Toda H. Quantitative susceptibility mapping and a nonlinearly transformed atlas for targeting the ventral intermediate nucleus of the thalamus in a patient with tremor and thalamic hypertrophy: illustrative case. J Neurosurg Case Lessons 2024; 7:CASE23709. [PMID: 38560927 PMCID: PMC10988233 DOI: 10.3171/case23709] [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] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 02/22/2024] [Indexed: 04/04/2024]
Abstract
BACKGROUND The ventral intermediate nucleus (Vim) of the thalamus is a surgical target for treating various types of tremor. Because it is difficult to visualize the Vim using standard magnetic resonance imaging, the structure is usually targeted based on the anterior and posterior commissures. This standard targeting method is practical in most patients but not in those with thalamic asymmetry. The authors examined the usefulness of quantitative susceptibility mapping (QSM) and transformed Vim atlas images to estimate the Vim localization in a patient with tremor and significant thalamic hypertrophy. OBSERVATIONS A 51-year-old right-handed female had experienced a predominant left-hand action tremor for 6 years. Magnetic resonance imaging showed significant hypertrophy of the right thalamus and caudal shift of the thalamic ventral border. The authors referred to the QSM images to localize the decreased susceptibility area within the lateral ventral thalamic nuclei to target the Vim. In addition, the nonlinearly transformed Vim atlas images complemented the imaging-based targeting. The radiofrequency thalamotomy at the modified Vim target relieved the tremor completely. LESSONS A combination of QSM and nonlinear transformation of the thalamic atlas can be helpful in the targeting method of the Vim for tremor patients with thalamic asymmetry.
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Affiliation(s)
| | | | | | - Takayoshi Ishimori
- Diagnostic Radiology, Medical Research Institute Kitano Hospital, Osaka, Japan; and
| | | | - Yasutaka Fushimi
- Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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Man V, Cockburn J, Flouty O, Gander PE, Sawada M, Kovach CK, Kawasaki H, Oya H, Howard Iii MA, O'Doherty JP. Temporally organized representations of reward and risk in the human brain. Nat Commun 2024; 15:2162. [PMID: 38461343 PMCID: PMC10924934 DOI: 10.1038/s41467-024-46094-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 02/13/2024] [Indexed: 03/11/2024] Open
Abstract
The value and uncertainty associated with choice alternatives constitute critical features relevant for decisions. However, the manner in which reward and risk representations are temporally organized in the brain remains elusive. Here we leverage the spatiotemporal precision of intracranial electroencephalography, along with a simple card game designed to elicit the unfolding computation of a set of reward and risk variables, to uncover this temporal organization. Reward outcome representations across wide-spread regions follow a sequential order along the anteroposterior axis of the brain. In contrast, expected value can be decoded from multiple regions at the same time, and error signals in both reward and risk domains reflect a mixture of sequential and parallel encoding. We further highlight the role of the anterior insula in generalizing between reward prediction error and risk prediction error codes. Together our results emphasize the importance of neural dynamics for understanding value-based decisions under uncertainty.
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Affiliation(s)
- Vincent Man
- Division of the Humanities and Social Sciences, California Institute of Technology, Pasadena, CA, 91125, USA.
| | - Jeffrey Cockburn
- Division of the Humanities and Social Sciences, California Institute of Technology, Pasadena, CA, 91125, USA
| | - Oliver Flouty
- Department of Neurosurgery and Brain Repair, University of South Florida, Tampa, FL, 33606, USA
| | - Phillip E Gander
- Department of Neurosurgery, University of Iowa Hospitals and Clinics, Iowa City, IA, 52242, USA
- Department of Radiology, University of Iowa Hospitals and Clinics, Iowa City, IA, 52242, USA
- Iowa Neuroscience Institute, University of Iowa Carver College of Medicine, Iowa City, IA, 52242, USA
| | - Masahiro Sawada
- Department of Neurosurgery, University of Iowa Hospitals and Clinics, Iowa City, IA, 52242, USA
| | - Christopher K Kovach
- Department of Neurosurgery, University of Iowa Hospitals and Clinics, Iowa City, IA, 52242, USA
- Department of Neurosurgery, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Hiroto Kawasaki
- Department of Neurosurgery, University of Iowa Hospitals and Clinics, Iowa City, IA, 52242, USA
| | - Hiroyuki Oya
- Department of Neurosurgery, University of Iowa Hospitals and Clinics, Iowa City, IA, 52242, USA
- Iowa Neuroscience Institute, University of Iowa Carver College of Medicine, Iowa City, IA, 52242, USA
| | - Matthew A Howard Iii
- Department of Neurosurgery, University of Iowa Hospitals and Clinics, Iowa City, IA, 52242, USA
- Iowa Neuroscience Institute, University of Iowa Carver College of Medicine, Iowa City, IA, 52242, USA
| | - John P O'Doherty
- Division of the Humanities and Social Sciences, California Institute of Technology, Pasadena, CA, 91125, USA
- Computation and Neural Systems, California Institute of Technology, Pasadena, CA, 91125, USA
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Hayashi H, Hashikata H, Sawada M, Toda H. Low back pain improvement after cervical laminoplasty in patients without tandem lumbar stenosis. Eur Spine J 2023; 32:4437-4443. [PMID: 37736774 DOI: 10.1007/s00586-023-07951-7] [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] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 08/09/2023] [Accepted: 09/11/2023] [Indexed: 09/23/2023]
Abstract
PURPOSE This study aimed to demonstrate the impact of lumbar spinal stenosis (LSS) on LBP after cervical laminoplasty for cervical spinal stenosis by analyzing the clinical characteristics and surgical outcomes. METHODS This retrospective cohort study analyzed 56 consecutive patients with cervical spinal stenosis who underwent cervical laminoplasty. Data on age, sex, Japanese Orthopaedic Association (JOA) scores, JOA Back Pain Evaluation Questionnaire (BPEQ), and visual analog scale (VAS) were collected. The patients with VAS for LBP ≥ 30 or more were included and divided into two groups: without LSS [LSS (-)]or with LSS [LSS (+)]. Preoperative clinical characteristics and postoperative changes were compared between the groups. RESULTS Preoperative VAS for LBP were 50.7 ± 16.2 mm and 59.8 ± 19.5 mm in the LSS (+) and LSS (-), respectively (p = 0.09). Patients in the LSS (-) were younger (57.6 ± 11.2 vs. 70.7 ± 8.6, p < 0.001) and showed significantly milder preoperative lumbar symptoms in terms of JOA and BPEQ. Patients in the LSS (-) group showed more postoperative changes in low back pain (18.3 ± 26.4 vs. - 8.3 ± 37.6, p = 0.005) and lumbar function (10.8 ± 25.7 vs. - 2.0 ± 22.5, p = 0.04) at BPEQ, and higher recovery in terms of VAS of LBP (23.0 ± 23.8 mm vs. 5.3 ± 25.9 mm, p = 0.008) and buttocks and low limbs (12.5 ± 35.0 mm vs. - 4.3 ± 24.4 mm, p = 0.029). Nine patients in the LSS (+) group underwent lumbar surgery at 12.8 ± 8.5 months after cervical laminoplasty. CONCLUSION LBP improved after cervical laminoplasty in patients without lumbar stenosis.
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Affiliation(s)
- Hideki Hayashi
- Department of Neurosurgery, Medical Research Institute Kitano Hospital, PIIF Tazuke Kofukai, 2-4-20 Ohgimachi, Kita-Ku, Osaka, 530-8480, Japan.
| | - Hirokuni Hashikata
- Department of Neurosurgery, Medical Research Institute Kitano Hospital, PIIF Tazuke Kofukai, 2-4-20 Ohgimachi, Kita-Ku, Osaka, 530-8480, Japan
| | - Masahiro Sawada
- Department of Neurosurgery, Medical Research Institute Kitano Hospital, PIIF Tazuke Kofukai, 2-4-20 Ohgimachi, Kita-Ku, Osaka, 530-8480, Japan
| | - Hiroki Toda
- Department of Neurosurgery, Medical Research Institute Kitano Hospital, PIIF Tazuke Kofukai, 2-4-20 Ohgimachi, Kita-Ku, Osaka, 530-8480, Japan
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Mizuno R, Sawada M, Tanaka T, Shiraishi Y, Ohashi T, Shigematsu N, Oya M. Comparison of the Efficacy of Low Dose Tadalafil with Tamsulosin against Lower Urinary Tract Symptoms and Sexual Dysfunction after Low Dose Rate Prostate Brachytherapy. Int J Radiat Oncol Biol Phys 2023; 117:e418. [PMID: 37785377 DOI: 10.1016/j.ijrobp.2023.06.1570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Patients with clinically localized prostate cancer (PCa) can be curatively treated with different modalities, including low dose rate (LDR) prostate brachytherapy (PB). LDR-PB allows the patient a relatively short recovery time compared with other treatment modalities such as prostatectomy. However, PB might exert distinct impact on quality of life, lower urinary tract symptoms (LUTS) and sexual dysfunction (SD) are two major concerns. The aim of present study was to assess prospectively the efficacy of low dose tadalafil treatment on both SD and LUTS compared with tamsulosin treatment in patients treated PB for localized PCa. MATERIALS/METHODS Patients scheduled for PB with I-125 seeds for low or intermediate-risk localized PCa at our institution were eligible for this study. The prescribed dose was set at 160 gray. Participants were randomized into two groups; those started treating with a daily use of 0.2 mg of tamsulosin hydrochloride or 5 mg of tadalafil just after PB. The duration of the study was 12 months and the patients were assessed for urinary and sexual function status at baseline, and 1, 3, 6, and 12 months after PB. The primary study endpoints were both changes from baseline in urinary and sexual function status. RESULTS Between July 2015 and August 2020, 120 participants were enrolled in this study. The median age was 68 years with the median PSA of 6.5 ng/ml. A total 15 patients were excluded within 6 months after randomization. All subjective LUTS findings, including International Prostate Symptom Score (IPSS), and Over Active Bladder Symptom Score (OABSS), were significantly deteriorated at 1, 3, and 6 months after PB compared with baseline in both groups, respectively (p<0.05). Among objective LUTS findings, a significant decrease in maximum urinary flow rate (Qmax) was found at 1, 3, 6, and 12 months after PB compared with baseline in both groups, respectively (p<0.05). A significant increase in post void residual urine (PVR) was found at 1, 3, and 6 months after PB compared to baseline in tadalafil group, whereas no significant increase was seen in tamsulosin group. There were no statistically significant differences between the 2 groups in scores of the total International Index of Erectile Function (IIEF)-15 and Erection Hardness Score (EHS) before and at 1 month post PB. The EHS was significantly higher in tadalafil group compared with tamsulosin group at 3, 6 and 12 months (p = 0.001, p = 0.004, and p = 0.019, respectively). The EHS after PB in tadalafil group was not significantly decreased from baseline. CONCLUSION After LDR-PB, tamsulosin treatment significantly decreased PVR compared with tadalafil. On the other hand, tadalafil contributed to maintain erection hardness compared with tamsulosin.
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Affiliation(s)
- R Mizuno
- Dept of Urology, Keio university, school of medicine, Tokyo, Japan
| | - M Sawada
- Keio University Graduate School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - T Tanaka
- Department of Radiology, Keio University School of Medicine, Tokyo, Japan
| | - Y Shiraishi
- Department of Radiology, Keio University School of Medicine, Tokyo, Japan
| | - T Ohashi
- Department of Radiology, Keio University School of Medicine, Tokyo, Japan
| | - N Shigematsu
- Department of Radiology, Keio University School of Medicine, Tokyo, Japan
| | - M Oya
- Dept of Urology, Keio university, school of medicine, Tokyo, Japan
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Sawada M, Yoshino-Saito K, Ninomiya T, Oishi T, Yamashita T, Onoe H, Takada M, Nishimura Y, Isa T. Reorganization of Corticospinal Projections after Prominent Recovery of Finger Dexterity from Partial Spinal Cord Injury in Macaque Monkeys. eNeuro 2023; 10:ENEURO.0209-23.2023. [PMID: 37468328 PMCID: PMC10408784 DOI: 10.1523/eneuro.0209-23.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 07/11/2023] [Indexed: 07/21/2023] Open
Abstract
We investigated morphologic changes in the corticospinal tract (CST) to understand the mechanism underlying recovery of hand function after lesion of the CST at the C4/C5 border in seven macaque monkeys. All monkeys exhibited prominent recovery of precision grip success ratio within a few months. The trajectories and terminals of CST from the contralesional (n = 4) and ipsilesional (n = 3) hand area of primary motor cortex (M1) were investigated at 5-29 months after the injury using an anterograde neural tracer, biotinylated dextran amine (BDA). Reorganization of the CST was assessed by counting the number of BDA-labeled axons and bouton-like swellings in the gray and white matters. Rostral to the lesion (at C3), the number of axon collaterals of the descending axons from both contralesional and ipsilesional M1 entering the ipsilesional and contralesional gray matter, respectively, were increased. Caudal to the lesion (at C8), axons originating from the contralesional M1, descending in the preserved gray matter around the lesion, and terminating in ipsilesional Laminae VI/VII and IX were observed. In addition, axons and terminals from the ipsilesional M1 increased in the ipsilesional Lamina IX after recrossing the midline, which were not observed in intact monkeys. Conversely, axons originating from the ipsilesional M1 and directed toward the contralesional Lamina VII decreased. These results suggest that multiple reorganizations of the corticospinal projections to spinal segments both rostral and caudal to the lesion originating from bilateral M1 underlie a prominent recovery in long-term after spinal cord injury.
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Affiliation(s)
- Masahiro Sawada
- Department of Developmental Physiology, National Institute for Physiological Sciences, Okazaki 444-8585, Japan
- Department of Neurosurgery, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan
| | - Kimika Yoshino-Saito
- Department of Developmental Physiology, National Institute for Physiological Sciences, Okazaki 444-8585, Japan
| | - Taihei Ninomiya
- Systems Neuroscience, Primate Research Institute, Kyoto University, Inuyama 484-8506, Japan
| | - Takao Oishi
- Systems Neuroscience, Primate Research Institute, Kyoto University, Inuyama 484-8506, Japan
- Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, Saitama 332-0012, Japan
| | - Toshihide Yamashita
- Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, Saitama 332-0012, Japan
- Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, Saitama 332-0012, Japan
| | - Hirotaka Onoe
- Human Brain Research Center, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan
| | - Masahiko Takada
- Systems Neuroscience, Primate Research Institute, Kyoto University, Inuyama 484-8506, Japan
- Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, Saitama 332-0012, Japan
| | - Yukio Nishimura
- Department of Developmental Physiology, National Institute for Physiological Sciences, Okazaki 444-8585, Japan
- Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, Saitama 332-0012, Japan
- Neural Prosthetics Project, Tokyo Metropolitan Institute of Medical Science, Tokyo 156-8506, Japan
- The graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
- Precursory Research for Embryonic Science and Technology, Japan Science and Technology Agency, Saitama 332-0012, Japan
| | - Tadashi Isa
- Department of Developmental Physiology, National Institute for Physiological Sciences, Okazaki 444-8585, Japan
- Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, Saitama 332-0012, Japan
- Human Brain Research Center, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan
- The graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
- Department of Neuroscience, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan
- Institute for the Advanced Study of Human Biology (WPI-ASHBi), Kyoto University, Kyoto 606-8501, Japan
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Man V, Cockburn J, Flouty O, Gander PE, Sawada M, Kovach CK, Kawasaki H, Oya H, Howard MA, O'Doherty JP. Temporally organized representations of reward and risk in the human brain. bioRxiv 2023:2023.05.09.539916. [PMID: 37214975 PMCID: PMC10197553 DOI: 10.1101/2023.05.09.539916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The value and uncertainty associated with choice alternatives constitute critical features along which decisions are made. While the neural substrates supporting reward and risk processing have been investigated, the temporal organization by which these computations are encoded remains elusive. Here we leverage the high spatiotemporal precision of intracranial electroencephalography (iEEG) to uncover how representations of decision-related computations unfold in time. We present evidence of locally distributed representations of reward and risk variables that are temporally organized across multiple regions of interest. Reward outcome representations across wide-spread regions follow a temporally cascading order along the anteroposterior axis of the brain. In contrast, expected value can be decoded from multiple regions at the same time, and error signals in both reward and risk domains reflect a mixture of sequential and parallel encoding. We highlight the role of the anterior insula in generalizing between reward prediction error (RePE) and risk prediction error (RiPE), within which the encoding of RePE in the distributed iEEG signal predicts RiPE. Together our results emphasize the utility of uncovering temporal dynamics in the human brain for understanding how computational processes critical for value-based decisions under uncertainty unfold.
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Andou M, Yanai S, Hada T, Kanno K, Sakate S, Sawada M, Kato K, Shimada K, Yoshino Y. Management for Ureteral Injury during Laparoscopic or Robotic Hysterectomy: Minimally Invasive Strategies. J Minim Invasive Gynecol 2022. [DOI: 10.1016/j.jmig.2022.09.244] [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: 11/26/2022]
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Sakate S, Andou M, Semba S, Ochi Y, Sawada M, Kanno K, Yanai S. 7360 Surgical Management of Ileocecal Endometriosis, 6 Cases Treated with Laparoscopic Ileocecal Resection. J Minim Invasive Gynecol 2022. [DOI: 10.1016/j.jmig.2022.09.285] [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: 11/25/2022]
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Yanai S, Andou M, Kanno K, Sakate S, Sawada M, Ochi Y, Semba S. Intraoperative Ultrasound Elastography Guided Rectal Shaving for Endometriosis. J Minim Invasive Gynecol 2022. [DOI: 10.1016/j.jmig.2022.09.186] [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: 11/25/2022]
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Kanno K, Yanai S, Sawada M, Sakate S, Andou M. Tips and Tricks for Nerve-Sparing Modified Radical Hysterectomy for Deep Endometriosis with Firefly Technology. J Minim Invasive Gynecol 2022. [DOI: 10.1016/j.jmig.2022.09.125] [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: 11/25/2022]
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Sawada M, Adolphs R, Dlouhy BJ, Jenison RL, Rhone AE, Kovach CK, Greenlee JDW, Howard Iii MA, Oya H. Author Correction: Mapping effective connectivity of human amygdala subdivisions with intracranial stimulation. Nat Commun 2022; 13:5679. [PMID: 36167812 PMCID: PMC9515150 DOI: 10.1038/s41467-022-33286-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Masahiro Sawada
- Department of Neurosurgery, Carver College of Medicine, University of Iowa, Iowa City, IA, USA.,Department of Neurosurgery, Tazuke Kofukai Medical Research Institute and Kitano Hospital, Osaka, Japan
| | - Ralph Adolphs
- Division of Humanities and Social Sciences, California Institute of Technology, Pasadena, CA, USA
| | - Brian J Dlouhy
- Department of Neurosurgery, Carver College of Medicine, University of Iowa, Iowa City, IA, USA.,Iowa Neuroscience Institute, University of Iowa, Iowa City, IA, USA
| | - Rick L Jenison
- Department of Neuroscience, University of Wisconsin - Madison, Madison, WI, USA
| | - Ariane E Rhone
- Department of Neurosurgery, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
| | - Christopher K Kovach
- Department of Neurosurgery, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
| | - Jeremy D W Greenlee
- Department of Neurosurgery, Carver College of Medicine, University of Iowa, Iowa City, IA, USA.,Iowa Neuroscience Institute, University of Iowa, Iowa City, IA, USA
| | - Matthew A Howard Iii
- Department of Neurosurgery, Carver College of Medicine, University of Iowa, Iowa City, IA, USA.,Iowa Neuroscience Institute, University of Iowa, Iowa City, IA, USA.,Pappajohn Biomedical Institute, University of Iowa, Iowa City, IA, USA
| | - Hiroyuki Oya
- Department of Neurosurgery, Carver College of Medicine, University of Iowa, Iowa City, IA, USA. .,Iowa Neuroscience Institute, University of Iowa, Iowa City, IA, USA.
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Sawada M, Adolphs R, Dlouhy BJ, Jenison RL, Rhone AE, Kovach CK, Greenlee JDW, Howard Iii MA, Oya H. Mapping effective connectivity of human amygdala subdivisions with intracranial stimulation. Nat Commun 2022; 13:4909. [PMID: 35987994 PMCID: PMC9392722 DOI: 10.1038/s41467-022-32644-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Accepted: 08/08/2022] [Indexed: 01/21/2023] Open
Abstract
The primate amygdala is a complex consisting of over a dozen nuclei that have been implicated in a host of cognitive functions, individual differences, and psychiatric illnesses. These functions are implemented through distinct connectivity profiles, which have been documented in animals but remain largely unknown in humans. Here we present results from 25 neurosurgical patients who had concurrent electrical stimulation of the amygdala with intracranial electroencephalography (electrical stimulation tract-tracing; es-TT), or fMRI (electrical stimulation fMRI; es-fMRI), methods providing strong inferences about effective connectivity of amygdala subdivisions with the rest of the brain. We quantified functional connectivity with medial and lateral amygdala, the temporal order of these connections on the timescale of milliseconds, and also detail second-order effective connectivity among the key nodes. These findings provide a uniquely detailed characterization of human amygdala functional connectivity that will inform functional neuroimaging studies in healthy and clinical populations.
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Affiliation(s)
- Masahiro Sawada
- Department of Neurosurgery, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
- Department of Neurosurgery, Tazuke Kofukai Medical Research Institute and Kitano Hospital, Osaka, Japan
| | - Ralph Adolphs
- Division of Humanities and Social Sciences, California Institute of Technology, Pasadena, CA, USA
| | - Brian J Dlouhy
- Department of Neurosurgery, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
- Iowa Neuroscience Institute, University of Iowa, Iowa City, IA, USA
| | - Rick L Jenison
- Department of Neuroscience, University of Wisconsin - Madison, Madison, WI, USA
| | - Ariane E Rhone
- Department of Neurosurgery, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
| | - Christopher K Kovach
- Department of Neurosurgery, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
| | - Jeremy D W Greenlee
- Department of Neurosurgery, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
- Iowa Neuroscience Institute, University of Iowa, Iowa City, IA, USA
| | - Matthew A Howard Iii
- Department of Neurosurgery, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
- Iowa Neuroscience Institute, University of Iowa, Iowa City, IA, USA
- Pappajohn Biomedical Institute, University of Iowa, Iowa City, IA, USA
| | - Hiroyuki Oya
- Department of Neurosurgery, Carver College of Medicine, University of Iowa, Iowa City, IA, USA.
- Iowa Neuroscience Institute, University of Iowa, Iowa City, IA, USA.
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Sawada M, Shiraishi Y, Nemoto T, Tanaka T, Kota R, Koike N, Shigematsu N. PO-1796 Dosimetric comparison of rectal dose reduction methods in brachytherapy for cervical cancer. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)03759-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Morioka H, Hirayama T, Sugisawa T, Murata K, Shibukawa M, Ebina J, Sawada M, Hanashiro S, Nagasawa J, Yanagihashi M, Uchi M, Kawabe K, Washizawa N, Ebihara S, Nakajima T, Kano O. Robot-assisted training using hybrid assistive limb ameliorates gait ability in patients with amyotrophic lateral sclerosis. J Clin Neurosci 2022; 99:158-163. [PMID: 35279589 DOI: 10.1016/j.jocn.2022.02.032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 02/17/2022] [Accepted: 02/21/2022] [Indexed: 11/24/2022]
Abstract
OBJECTIVE The Hybrid Assistive Limb (HAL; CYBERDYNE, Inc., Japan) is a wearable robot device that provides effective gait assistance according to voluntary intention by detecting weak bioelectrical signals of neuromuscular activity on the surface of the skin. We used HAL for patients with amyotrophic lateral sclerosis (ALS) to determine whether HAL training had an effect on their gait ability. METHODS We conducted a single-center, single-arm, observational study. Patients with ALS underwent HAL training once per day (20-40 min per session) for 9-10 days for at least 4 weeks. Gait ability was evaluated using the 2-minute walk test, the 10-meter walk test without the assistance of HAL, and activities of daily living (ADL) using the Barthel Index and Functional Independence Measures before and after a full course of HAL training. RESULTS There were no dropouts or adverse events during the observation period. Gait function improved after HAL training. The 2-minute walk test revealed a mean gait distance of 73.87 m (36.65) at baseline and 89.9m (36.70) after HAL training (p = 0.004). The 10-meter walk test showed significantly improved cadence, although gait speed, step length on the 10-m walk, or ADL measurements did not change significantly. CONCLUSIONS Although HAL is not a curative treatment for ALS, our data suggest that HAL may be effective in ameliorating and preserving gait ability in patients with ALS.
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Affiliation(s)
- Harumi Morioka
- Department of Neurology, Toho University Faculty of Medicine, 6-11-1 Omori-Nishi, Ota-ku, Tokyo 143-8541, Japan
| | - Takehisa Hirayama
- Department of Neurology, Toho University Faculty of Medicine, 6-11-1 Omori-Nishi, Ota-ku, Tokyo 143-8541, Japan
| | - Tatsuki Sugisawa
- Department of Rehabilitation Medicine, Toho University Faculty of Medicine, 6-11-1 Omori-Nishi, Ota-ku, Tokyo 143-8541, Japan
| | - Kiyoko Murata
- Department of Neurology, Toho University Faculty of Medicine, 6-11-1 Omori-Nishi, Ota-ku, Tokyo 143-8541, Japan
| | - Mari Shibukawa
- Department of Neurology, Toho University Faculty of Medicine, 6-11-1 Omori-Nishi, Ota-ku, Tokyo 143-8541, Japan
| | - Junya Ebina
- Department of Neurology, Toho University Faculty of Medicine, 6-11-1 Omori-Nishi, Ota-ku, Tokyo 143-8541, Japan
| | - Masahiro Sawada
- Department of Neurology, Toho University Faculty of Medicine, 6-11-1 Omori-Nishi, Ota-ku, Tokyo 143-8541, Japan
| | - Sayori Hanashiro
- Department of Neurology, Toho University Faculty of Medicine, 6-11-1 Omori-Nishi, Ota-ku, Tokyo 143-8541, Japan
| | - Junpei Nagasawa
- Department of Neurology, Toho University Faculty of Medicine, 6-11-1 Omori-Nishi, Ota-ku, Tokyo 143-8541, Japan
| | - Masaru Yanagihashi
- Department of Neurology, Toho University Faculty of Medicine, 6-11-1 Omori-Nishi, Ota-ku, Tokyo 143-8541, Japan
| | - Masayuki Uchi
- Department of Rehabilitation Medicine, Toho University Faculty of Medicine, 6-11-1 Omori-Nishi, Ota-ku, Tokyo 143-8541, Japan
| | - Kiyokazu Kawabe
- Department of Neurology, Toho University Faculty of Medicine, 6-11-1 Omori-Nishi, Ota-ku, Tokyo 143-8541, Japan
| | - Naohiro Washizawa
- Nutrition Therapy Center, Toho University Faculty of Medicine, 6-11-1 Omori-Nishi, Ota-ku, Tokyo 143-8541, Japan
| | - Satoru Ebihara
- Department of Rehabilitation Medicine, Toho University Faculty of Medicine, 6-11-1 Omori-Nishi, Ota-ku, Tokyo 143-8541, Japan
| | - Takashi Nakajima
- Niigata National Hospital, National Hospital Organization, 3-52 Akasaka Kashiwazaki City, Niigata 945-8585, Japan
| | - Osamu Kano
- Department of Neurology, Toho University Faculty of Medicine, 6-11-1 Omori-Nishi, Ota-ku, Tokyo 143-8541, Japan.
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Morioka H, Murata K, Sugisawa T, Shibukawa M, Ebina J, Sawada M, Hanashiro S, Nagasawa J, Yanagihashi M, Hirayama T, Uchi M, Kawabe K, Ebihara S, Murakami Y, Nakajima T, Kano O. Effects of Long-term Hybrid Assistive Limb Use on Gait in Patients with Amyotrophic Lateral Sclerosis. Intern Med 2022; 61:1479-1484. [PMID: 35569927 PMCID: PMC9177366 DOI: 10.2169/internalmedicine.8030-21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Objective To assess the long-term effects of hybrid assistive limb (HAL) treatment on gait in patients with amyotrophic lateral sclerosis (ALS). Methods Three courses of treatment with HAL were administered to three women with ALS. Each course had a four- to five-week duration, during which the treatment was performed nine times, with a rest period of at least two months between each course. Gait ability (2-minutes-walk and 10-m-walk tests), ALS Functional Rating Scale-Revised, and respiratory function tests were performed before and after each treatment course. Patients Patients diagnosed with ALS, according to the updated Awaji criteria, by board-certified neurologists in the Department of Neurology and Department of Rehabilitation Medicine, Toho University Omori Faculty of Medicine between January and December 2019 were recruited. Results The average time from the start to the end of the 3 courses was 319.7±33.7 days. A multiple regression analysis was performed for the 2-minutes-walk and 10-m-walk tests, using the baseline value, each participant's ID, and time point as covariates. Changes after each course were considered outcomes. Following the 3 treatment courses, the 2-minutes walk distance improved by 16.61 m (95% confidence interval, -9.33-42.54) compared with the baseline value, but this improvement was not statistically significant (p=0.21). However, cadence significantly improved by 1.30 steps (95% confidence interval, 0.17-2.42; p=0.02). Conclusion Long-term, repetitive HAL treatments may help patients with ALS maintain their gait.
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Affiliation(s)
- Harumi Morioka
- Department of Neurology, Toho University Faculty of Medicine, Japan
| | - Kiyoko Murata
- Department of Neurology, Toho University Faculty of Medicine, Japan
| | - Tatsuki Sugisawa
- Department of Rehabilitation Medicine, Toho University Faculty of Medicine, Japan
| | - Mari Shibukawa
- Department of Neurology, Toho University Faculty of Medicine, Japan
| | - Junya Ebina
- Department of Neurology, Toho University Faculty of Medicine, Japan
| | - Masahiro Sawada
- Department of Neurology, Toho University Faculty of Medicine, Japan
| | - Sayori Hanashiro
- Department of Neurology, Toho University Faculty of Medicine, Japan
| | - Junpei Nagasawa
- Department of Neurology, Toho University Faculty of Medicine, Japan
| | | | | | - Masayuki Uchi
- Department of Rehabilitation Medicine, Toho University Faculty of Medicine, Japan
| | - Kiyokazu Kawabe
- Department of Neurology, Toho University Faculty of Medicine, Japan
| | - Satoru Ebihara
- Department of Rehabilitation Medicine, Toho University Faculty of Medicine, Japan
| | - Yoshitaka Murakami
- Department of Medical Statistics, Toho University Faculty of Medicine, Japan
| | - Takashi Nakajima
- Niigata National Hospital, National Hospital Organization, Japan
| | - Osamu Kano
- Department of Neurology, Toho University Faculty of Medicine, Japan
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Andou M, Kanno K, Sakate S, Sawada M, Yanai S, Hada T. Colostomy-Free Bowel Injury Repair. J Minim Invasive Gynecol 2021. [DOI: 10.1016/j.jmig.2021.09.438] [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]
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17
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Yanai S, Andou M, Sakate S, Sawada M, Kanno K. A New Insight of the Fascia in Gynecologic Surgery, “the Dissectable Layer”. J Minim Invasive Gynecol 2021. [DOI: 10.1016/j.jmig.2021.09.669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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18
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Andou M, Yanai S, Kanno K, Sakate S, Sawada M, Hada T. Laparoscopic Extraperitoneal Total Retroperitoneal Dissection- the Right Approach. J Minim Invasive Gynecol 2021. [DOI: 10.1016/j.jmig.2021.09.012] [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: 11/16/2022]
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19
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Yoshida G, Matsumura H, Masumoto K, Nakamura H, Toyoda A, Nobuhara F, Iwai S, Nishikawa K, Hayashi K, Ishioka J, Hanaki H, Miyauchi H, Nagahashi S, Sawada M, Goto K, Yamamoto Y, Miura T, Bessho K. Investigation into activation of accelerators at various synchrotron radiation facilities in Japan. J NUCL SCI TECHNOL 2021. [DOI: 10.1080/00223131.2021.1985646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Go Yoshida
- High Energy Accelerator Research Organization (KEK), Ibaraki Japan
| | | | | | - Hajime Nakamura
- High Energy Accelerator Research Organization (KEK), Ibaraki Japan
| | - Akihiro Toyoda
- High Energy Accelerator Research Organization (KEK), Ibaraki Japan
| | | | - Shohei Iwai
- Tokyo Nuclear Services Co., Ltd, Tokyo, Japan
| | - Koichi Nishikawa
- High Energy Accelerator Research Organization (KEK), Ibaraki Japan
| | - Kenji Hayashi
- Institute for Molecular Science, National Institutes of Natural Sciences, Okazaki, Japan
| | | | - Hirofumi Hanaki
- Japan Synchrotron Radiation Research Institute, Hyogo, Japan
| | - Hiroshi Miyauchi
- High Energy Accelerator Research Organization (KEK), Ibaraki Japan
| | - Shinya Nagahashi
- High Energy Accelerator Research Organization (KEK), Ibaraki Japan
| | | | | | | | - Taichi Miura
- High Energy Accelerator Research Organization (KEK), Ibaraki Japan
| | - Kotaro Bessho
- High Energy Accelerator Research Organization (KEK), Ibaraki Japan
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Oe K, Sawada M, Nakamura T, Iida H, Saito T. Daptomycin for the Treatment of Gram-Positive Periprosthetic Hip Infections: Can Daptomycin Prevent the Implant Removal? Cureus 2021; 13:e15842. [PMID: 34322334 PMCID: PMC8298194 DOI: 10.7759/cureus.15842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/22/2021] [Indexed: 11/17/2022] Open
Abstract
Introduction Management of periprosthetic hip infections (PHIs) generally consists of implant removal and thorough debridement, accompanied by appropriate antibiotic therapy. Daptomycin (DAP) is a novel antibiotic, which allowed for implant retention in several patients after treating their infected joints. However, there is no consensus about implant retention or removal during the treatment of PHIs. The aim of this study was to examine the effect of DAP and to determine a surgical treatment strategy. Methods This study retrospectively evaluated 20 patients between August 2014 and December 2018, divided into implant retention (n=9) and implant removal groups (n=11). Infection control and risk of recurrent infection were evaluated. Infection control was defined as not requiring implant removal after the final treatment. Results Infection control rates in implant retention and implant removal groups were 67% and 90%, respectively. All late chronic infections resulted in failure cases within the implant retention group. In the implant retention group, mean preoperative risk scores for successful cases were significantly higher than those for failure cases (p<0.05). Conclusions Patients with low risk did not require implant removal, suggesting that DAP may be a breakthrough alternative to traditional PHI management.
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Affiliation(s)
- Kenichi Oe
- Department of Orthopaedic Surgery, Kansai Medical University, Hirakata, JPN
| | - Masahiro Sawada
- Department of Orthopaedic Surgery, Kansai Medical University, Hirakata, JPN
| | - Tomohisa Nakamura
- Department of Orthopaedic Surgery, Kansai Medical University, Hirakata, JPN
| | - Hirokazu Iida
- Department of Orthopaedic Surgery, Kansai Medical University, Hirakata, JPN
| | - Takanori Saito
- Department of Orthopaedic Surgery, Kansai Medical University, Hirakata, JPN
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21
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Ilic L, Sawada M. The temporal evolution of income polarization in Canada's largest CMAs. PLoS One 2021; 16:e0251430. [PMID: 34101744 PMCID: PMC8186789 DOI: 10.1371/journal.pone.0251430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 04/26/2021] [Indexed: 11/18/2022] Open
Abstract
Income polarization is a pressing issue which is increasingly discussed by academics and policymakers. The present research examines income polarization in Canada’s eight largest Census Metropolitan Areas (CMAs) using data at the census-tract (CT) level between 1971 and 2016. Generally, there are significant decreasing trends in the middle-income population with simultaneously increasing trends in low-income groups. The high-income groups have been relatively stable with fewer significant increasing population trends. Using conventional mapping and cartograms, patterns of the spatial evolution of income inequality are illustrated. Every CMA examined contains an increasing trend of spatial fragmentation at the patch level within each CMA’s landscape mosaic. The results of a spatial autocorrelation analysis at the sub-patch, CT level, exhibit significant spatial clustering of high-income CTs as one process that dominates the increasingly fragmented landscape mosaic.
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Affiliation(s)
- Lazar Ilic
- Laboratory for Applied Geomatics and GIS Science (LAGGISS), Department of Geography, Environment and Geomatics, University of Ottawa, Ottawa, Canada
- * E-mail:
| | - M. Sawada
- Laboratory for Applied Geomatics and GIS Science (LAGGISS), Department of Geography, Environment and Geomatics, University of Ottawa, Ottawa, Canada
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22
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Anand K, Pal A, Alam M, Dan S, Kumar S, Ghosh S, Kumari S, Das A, Sawada M, Mohan A, Sathe VG, Chatterjee S. Emergence of metamagnetic transition, re-entrant cluster glass and spin phonon coupling in Tb 2CoMnO 6. J Phys Condens Matter 2021; 33:275802. [PMID: 33957615 DOI: 10.1088/1361-648x/abfe94] [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] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 05/06/2021] [Indexed: 06/12/2023]
Abstract
The double perovskite compound Tb2CoMnO6has been investigated using x-ray absorption spectroscopy (XAS), Raman spectroscopy, magnetic measurements andab initioband structure calculations. It is observed that both anti-ferromagnetic (AFM) and ferromagnetic (FM) phase coexist in this material. The presence of anti-site disorder (ASD) has been established from the analysis of neutron diffraction data. Moreover, a prominent metamagnetic transition is observed in theM(H) behavior that has been explained with the drastic reorientation of the pinned domain which are aligned antiparallel by the antiphase boundaries (APBs) at zero field. The ASD further gives rise to spin frustration at low temperature which leads to the re-entrant cluster glass ∼33 K. The coupling between phononic degree of freedom and spin in the system has also been demonstrated. It is observed that the theoretical calculation is consistent with that of the experimentally observed behavior.
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Affiliation(s)
- Khyati Anand
- Department of Physics, Indian Institute of Technology (BHU) Varanasi 221005, India
| | - Arkadeb Pal
- Department of Physics, Indian Institute of Technology (BHU) Varanasi 221005, India
| | - Mohd Alam
- Department of Physics, Indian Institute of Technology (BHU) Varanasi 221005, India
| | - Sambhab Dan
- Department of Physics, Indian Institute of Technology (BHU) Varanasi 221005, India
| | - Shiv Kumar
- Hiroshima Synchrotron Radiation Center, Hiroshima University, Kagamiyama 2-313, Higashi Hiroshima 739-0046, Japan
| | - Surajit Ghosh
- Department of Physics, Indian Institute of Technology (BHU) Varanasi 221005, India
| | - Seema Kumari
- Department of Physics, Indian Institute of Technology (BHU) Varanasi 221005, India
| | - A Das
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Masahiro Sawada
- Hiroshima Synchrotron Radiation Center, Hiroshima University, Kagamiyama 2-313, Higashi Hiroshima 739-0046, Japan
| | - Anita Mohan
- Department of Physics, Indian Institute of Technology (BHU) Varanasi 221005, India
| | - Vasant G Sathe
- UGC-DAE Consortium for Scientific Research, University Campus, Khandwa Road, Indore 452001, India
| | - Sandip Chatterjee
- Department of Physics, Indian Institute of Technology (BHU) Varanasi 221005, India
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23
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Caulley L, Sawada M, Crighton E, Khoury M, Kontorinis G. Association between socioeconomic indicators and geographic distribution of vestibular schwannomas in West Scotland: a 15-year review. J Laryngol Otol 2020; 134:1-9. [PMID: 33267923 DOI: 10.1017/s0022215120002212] [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: 11/07/2022]
Abstract
OBJECTIVE Socioeconomic risk factors may contribute to geographic variation in diseases, but studies are limited due to lack of large available cohorts. METHOD A geographic analysis was performed of the association between socioeconomic risk factors and the distribution of vestibular schwannomas in adults diagnosed with sporadic vestibular schwannomas through the National Health Services in the West of Scotland from 2000 to 2015. RESULTS A total of 511 sporadic vestibular schwannomas were identified in a population of over 3.1 million. Prevalence of vestibular schwannomas were lowest in cases with good health (-0.64, 95 per cent confidence interval: -0.93,-0.38; p = 0.002) and level 1 qualifications (-0.562, 95 per cent confidence interval: -0.882 to -0.26; p = 0.01). However, these risk factors did not demonstrate consistent linearity of correlations. Prevalence was lower in people originating from European Union accession countries from April 2001 to March 2011 (-0.63, 95 per cent confidence interval: -0.84 to -0.43; p = 0.002). No correlation between distribution of vestibular schwannomas and socioeconomic risk factors met our threshold criteria (± 0.7). CONCLUSION This study demonstrated that there is little variation in distribution of vestibular schwannomas by socioeconomic risk factors.
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Affiliation(s)
- L Caulley
- Department of Otolaryngology-Head and Neck Surgery, University of Ottawa, Canada
- Department of Epidemiology, Erasmus University Medical Center Rotterdam, The Netherlands
- Ottawa Hospital Research Institute, Canada
| | - M Sawada
- Department of Geography, Environment and Geomatics, University of Ottawa, Canada
| | - E Crighton
- Department of Geography, Environment and Geomatics, University of Ottawa, Canada
| | - M Khoury
- Department of Undergraduate Medicine, University of Ottawa, Canada
| | - G Kontorinis
- Department of Otolaryngology-Head and Neck Surgery, Queen Elizabeth University Hospital, Glasgow, Scotland, UK
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Yanagihashi M, Okamoto R, Morioka H, Sawada M, Matsumoto S, Ikeda T, Kano O. Coronary spastic angina after the administration of intravenous immunoglobulin in myasthenia gravis: a case report. BMC Neurol 2020; 20:319. [PMID: 32859168 PMCID: PMC7453555 DOI: 10.1186/s12883-020-01901-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 08/23/2020] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Myasthenia gravis (MG) is an autoimmune disease caused by antibodies that block or destroy nicotinic acetylcholine receptors at the neuromuscular junction. Most of MG patients need immunosuppression agents in addition to treatments that alleviate the symptoms. Intravenous immunoglobulin (IVIg) and plasma exchange are specific treatments given to patients with severe MG and myasthenia gravis crisis. IVIg therapy can cause an increase in serum viscosity; therefore, the risk for thromboembolic events, such as stroke, myocardial infarction, and pulmonary embolism, are reported after IVIg therapy.
Case presentation
An MG patient was treated with pyridostigmine bromide and prednisolone. The patient’s symptoms worsened 26 days after the commencement of treatment and was presented with head drop and dyspnea. The patient was diagnosed with MG crisis and IVIg was initiated. However, the patient reported chest pain and dyspnea 3 days after IVIg had started. An electrocardiogram (ECG) revealed ST elevations in leads II, III, and aVF. A cardiac catheterization was performed and stenosis, obstruction, and sclerosis were ruled out. Glyceryl trinitrate relieved the patient’s symptoms, suggesting coronary spastic angina (CSA).
Conclusions
We report the first case of CSA after IVIg. Practitioners should be aware of the potential risks of CSA when administering IVIg for MG patients, in particular in old patients with vascular risk factors.
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Kubo Y, Sugiyama S, Takachu R, Sugiura T, Sawada M, Kobori K, Kobori M. Effects of preoperative low-intensity training with slow movement on early quadriceps weakness after total knee arthroplasty in patients with knee osteoarthritis: a retrospective propensity score-matched study. BMC Sports Sci Med Rehabil 2020; 12:72. [PMID: 33292439 PMCID: PMC7693521 DOI: 10.1186/s13102-020-00223-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 11/22/2020] [Indexed: 11/10/2022]
Abstract
Background Severe and early quadriceps weakness (QW) after total knee arthroplasty (TKA), which is caused by acute inflammation resulting from surgical trauma and tourniquet-induced ischemia-reperfusion (IR) injury, can be especially problematic. We focused on tourniquet-induced IR injury, because it has been shown to be preventable through ischemic and exercise preconditioning. Low-intensity resistance exercise with slow movement and tonic force generation (LST) share some similarities with ischemic and exercise preconditioning. The present study primarily aimed to clarify the efficacy of preoperative LST program as prehabilitation for early QW among patients with TKA using propensity score matching analysis. Methods This single-center retrospective observational study used data from patients with knee osteoarthritis (n = 277) who were scheduled to undergo unilateral TKA between August 2015 and January 2017. Those with missing outcome data due to their inability to perform tests were excluded. The LST group included participants who performed LST and aerobic exercise (LST session) more than seven times for three months prior to surgery. The control group included participants who performed less than eight LST sessions, a general and light exercise or had no exercise for three months prior to surgery. Knee circumference, thigh volume, knee pain during quadriceps strength test (QST) and timed up and go test (TUG), quadriceps strength, and TUG were measured before and 4 days after surgery. Knee swelling, thigh swelling, Δknee pain, QW, and ΔTUG were determined by comparing pre- and postoperative measurements. Results Propensity score matching generated 41 matched pairs who had nearly balanced characteristics. The LST group had a significantly lower knee and thigh swelling, QW, and ΔTUG compared to the control group (all, p < 0.05). No significant differences in Δknee pain during the QST and TUG were observed between both groups (both, p > 0.05). Conclusions The present study demonstrated the beneficial effects of preoperative LST program on knee swelling, thigh swelling, QW, and walking disability immediately after TKA.
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Affiliation(s)
- Yusuke Kubo
- Department of Rehabilitation, Kobori Orthopedic Clinic, 548-2 Nearaichou, Kita-ku, Hamamatsu City, Shizuoka, 433-8108, Japan.
| | - Shuhei Sugiyama
- Department of Rehabilitation, Kobori Orthopedic Clinic, 548-2 Nearaichou, Kita-ku, Hamamatsu City, Shizuoka, 433-8108, Japan
| | - Rie Takachu
- Department of Rehabilitation, Kobori Orthopedic Clinic, 548-2 Nearaichou, Kita-ku, Hamamatsu City, Shizuoka, 433-8108, Japan
| | - Takeshi Sugiura
- Department of Rehabilitation, Kobori Orthopedic Clinic, 548-2 Nearaichou, Kita-ku, Hamamatsu City, Shizuoka, 433-8108, Japan
| | - Masahiro Sawada
- Department of Rehabilitation, Kobori Orthopedic Clinic, 548-2 Nearaichou, Kita-ku, Hamamatsu City, Shizuoka, 433-8108, Japan
| | - Kaori Kobori
- Department of Rehabilitation, Kobori Orthopedic Clinic, 548-2 Nearaichou, Kita-ku, Hamamatsu City, Shizuoka, 433-8108, Japan
| | - Makoto Kobori
- Department of Rehabilitation, Kobori Orthopedic Clinic, 548-2 Nearaichou, Kita-ku, Hamamatsu City, Shizuoka, 433-8108, Japan
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Andou M, Sawada M, Yanai S, Kanno K, Sakate S. Robotic Extraperitoneal Para-Aortic and Pelvic Lymphadenectomy with the Aid of the Double Bipolar Method. J Minim Invasive Gynecol 2020. [DOI: 10.1016/j.jmig.2020.08.352] [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: 10/23/2022]
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Andou M, Kanno K, Sawada M. Robotic Radical Trachelectomy Using the Double Bipolar Method- Aiming for a Bloodless Operative Field. J Minim Invasive Gynecol 2020. [PMCID: PMC7571960 DOI: 10.1016/j.jmig.2020.08.180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Study Objective To report the application of the double bipolar technique in a patient with 1b1 cervical cancer who wished to preserve her fertility potential. Design After experiencing 105 cases of laparoscopic and robotic radical trachelectomy with a 5 year survival rate of 98% and the birth of 29 babies from 51 of these patients who attempted pregnancy, we introduced the double bipolar method to overcome technical difficulties of the procedure due to the necessity for precise dissection and reconstruction in the deep pelvis. We will show our operative techniques, such as nerve sparing radical trachelectomy and retroperitoneal lymphadenectomy for early invasive cervical cancer in a bloodless operative field. Setting Urban general hospital. Patients or Participants Robotic radical trachelectomy using the double bipolar method was performed in three patients with 1b1 cervical cancer. Interventions After Robotic radical trachelectomy using monopolar scissors in 30 cases of stage Ib1 cervical cancer, we considered techniques for a more bloodless operative field. The double bipolar method (DBM) was originated by a robotic gastrointestinal surgeon, Prof Ichiro Uyama. Using robotic Maryland forceps as a cutting device allows for pinpoint accuracy that cannot be found in other instruments. It is important for bladder and ureteral dissection and exposure of vessels. Cuts are made at a very limited point by a lightning strike mechanism, meaning there is minimal thermal spread to adjacent organs. Measurements and Main Results Blood loss was 250ml in the cases presented. In surgeries not using the DBM(n=34), the blood loss ranged from 350ml(100-1200ml). While there is no supporting data, the dissection of the ureter was very smooth. Conclusion A bloodless operative field allows for accurate dissection and can prevent intraoperative injuries. The double bipolar method is able to provide precision cutting and limit thermal spread to adjacent tissue, reducing injury and allowing for a clear operative field.
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Sawada M. A Case of Robotic Radical Parametrectomy for the Treatment Uterine Cervical Cancer Discovered after Simple Hysterectomy. J Minim Invasive Gynecol 2020. [DOI: 10.1016/j.jmig.2020.08.350] [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: 10/23/2022]
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Naruo Y, Uechi S, Sawada M, Funatsu A, Shimojo F, Ida S, Hara M. Ferromagnetic metal conversion directly from two-dimensional nickel hydroxide. Nanotechnology 2020; 31:435602. [PMID: 32629443 DOI: 10.1088/1361-6528/aba304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
We have demonstrated a direct metallic conversion from nickel hydroxide nanosheets to nickel metal nanostructures by thermal annealing in vacuum. The metal transition of the single-layer nanosheets deposited on a Si substrate was revealed by x-ray absorption near edge structure (XANES) measurements. The XANES signal significantly changed at annealing temperatures above 250 °C. The metal transition temperature coincides with the reported temperatures at which layered nickel hydroxide nanosheets are converted to nickel oxide nanosheets by calcination in air. Auger measurements confirmed that a dissociation of oxygen from the hydroxide nanosheet induces the metallic conversion. The converted nickel metallic structures exhibit ferromagnetic behavior revealed by x-ray magnetic circular dichroism (XMCD) measurement. Atomic force microscopy measurements indicate that diffusions of nickel atoms on the substrates leads to a structural change from a 2D-like structure to a particle-like structure.
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Affiliation(s)
- Yuhsuke Naruo
- Graduate School of Science and Technology, Kumamoto University, Kumamoto 860-8555, Japan
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Singh P, Alam M, Kumar S, Anand K, Gangwar VK, Ghosh S, Sawada M, Shimada K, Singh RK, Ghosh AK, Chatterjee S. Roles of Re-entrant cluster glass state and spin-lattice coupling in magneto-dielectric behavior of giant dielectric double perovskite La 1.8Pr 0.2CoFeO 6. J Phys Condens Matter 2020; 32:445801. [PMID: 32688353 DOI: 10.1088/1361-648x/aba778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
La based Co-Fe combined double perovskite (La1.8Pr0.2CoFeO6) was synthesized and the dielectric (zero-field and in-field), magnetic, x-ray absorption and Raman spectroscopy measurements have been investigated for La1.8Pr0.2CoFeO6 double perovskite. The existence of re-entrant cluster glass state is observed. The magneto-dielectric (MD) is found in two temperature regions (25-80 K and 125-275 K). It has been demonstrated that the observed MD at low and high temperatures are respectively due to the spin freezing and the spin-lattice coupling. Furthermore, the very large dielectric constant and the low loss suggest that La1.8Pr0.2CoFeO6 is very important from the application point of view.
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Affiliation(s)
- Prajyoti Singh
- Department of Physics, Indian Institute of Technology (BHU), Varanasi-221005, India
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Umeda A, Sawada M, Watanabe N, Suzuki M, Naganawa T, Ashihara K, Kurumizawa M, Hirano D, Hashimoto T, Nishino J, Fukaya S, Yoshida S, Yasuoka H. AB0619 PROGNOSTIC FACTORS OF PATIENTS WITH ANTI-MDA5 ANTIBODY-POSITIVE DERMATOMYOSITIS COMPLICATED WITH INTERSTITIAL PNEUMONIA -A JAPANESE SINGLE CENTER STUDY-. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.2708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Anti-melanoma differentiation-associated gene 5 antibody (anti-MDA5 Ab)-positive dermatomyositis (DM) is frequently associated with rapidly progressive interstitial pneumonia (RPIP), whose prognosis is assumed to be poor[1]. Although outcome of DM-RPIP has been reported to be improved by early immunosuppressive therapy, we still experience the cases with severe outcome. Only several reports mentioned the prognostic factors and they have not been fully elucidated.Objectives:To identify the predictors of prognosis in patients with anti-MDA5 Ab-positive DM associated with interstitial pneumonia (DM-IP).Methods:Anti-MDA5 Ab-positive DM-IP patients admitted to Fujita Health University Hospital between January 2010 and October 2019 were consecutively included and stratified into 2 groups, the survived and the deceased groups. DM was diagnosed according to the criteria proposed by Bohan and Peter[2]. Clinically amyopathic DM was diagnosed according to the criteria proposed by Sontheimer [3]. Diagnosis of IP was based on findings of high resolution CT scan (HRCT). The definition of RPIP was rapid exacerbation of hypoxemia or HRCT findings in a period of days to one month after the onset. Clinical features and prognosis of the patients were collected retrospectively and compared between groups. Candidates of predictors are extracted by the univariable analysis using Fisher’s exact test for dichotic parameters and Wilcoxon signed-rank test for continuous parameters and multivariable analysis using logistic regression analysis. Receiver operating characteristic (ROC) curve analysis was examined to obtain the cut-off level. Survival was examined using Kaplan-Meier method and Log-rank test.Results:Twenty-one patients were involved. Eight were deceased and 13 were survived. The deceased group had a higher ratio of male (75% versus 25%, p= 0.018). All deceased cases were with RPIP and 67 % in the survived cases. Levels of serum ferritin (4490 versus 646 ng/mL, p = 0.0026), CRP (2.1 versus 0.9 mg/dL, p = 0.0490), CK (1150 versus 290 U/L, p = 0.017), AST (194 versus 108 U/L, p = 0.025) and LDH (674 versus 368 U/L, p = 0.011) were higher in the deceased group. Interestingly, skin ulcers were tended to be more frequent (12.5% versus 87.5%, p= 0.0587), and anti-SS-A antibody was also more frequently detected (14.3% versus 85.7%, p=0.0072) in the survived group. Using ROC analysis cut-off values were 963 ng/mL for serum ferritin level (sensitivity 100%, specificity 83%), 0.7 mg/dL for CRP (sensitivity 75%, specificity 69%), 308 U/L for CK (sensitivity 88%, specificity 77%), 62 U/L for ALT (sensitivity 100%, specificity 62%), and 454 U/L for LDH (sensitivity 88%, specificity 77%). Patients were divided into two groups based on these cut-offs or based on dichotic parameters and survival was examined between 2 groups. Except CRP and anti-SS-A antibody, survival was significantly worse in parameter-positive or higher groups. Interestingly, anti-SS-A antibody-positive group had better outcome compared with those without.Conclusion:In our analysis, novel candidates such as serum CK, AST, and LDH levels were newly extracted and parameters previously reported was also included and those were also associated with the clinical outcome. In addition, anti-SS-A antibody was identified as a novel protective factor associated with a good outcome.References:[1]Nakashima R, Hosono Y, Mimori T. Clinical significance and new detection system of autoantibodies in myositis with interstitial lung disease. Lupus 2016;25:925-33.[2]Bohan A, Peter JB. Polymyositis and dermatomyositis. N Eng J Med 1975;292:344-7.[3]Sontheimer RD. Dermatomyositis: an overview of recent progress with emphasis on dermatologic aspects. Dermatol Clin 2000;20:387-408.Disclosure of Interests:None declared
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Sawada M, Nakae T, Munemitsu T, Hojo M. Functional Connectivity Analysis and Prediction of Pain Relief in Association with Spinal Decompression Surgery. World Neurosurg 2020; 139:e316-e324. [PMID: 32298822 DOI: 10.1016/j.wneu.2020.03.200] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 03/27/2020] [Accepted: 03/29/2020] [Indexed: 10/24/2022]
Abstract
BACKGROUND Although spinal decompression surgery is an effective treatment for myelopathy-induced upper limb pain, some postoperative patients suffer from residual pain in spite of adequate decompression. However, the neural mechanism underlying the poor outcome of pain relief is still unclear. The goal of this study was to explore the brain mechanisms involved in the poor recovery of upper limb pain after the spinal decompression surgery by using functional connectivity (FC) analysis. METHODS In this cross-sectional study, 17 patients who underwent cervical spinal decompression surgery were included. Functional MRI (fMRI) during a tactile stimulus for each hand was performed at 1 day before and 7 days after the surgery. In total, 34 fMRI scans (17 left and right upper limbs, respectively) were obtained before and after the surgery, respectively. The patients were divided into poor-recovery and good-recovery groups, and then we searched for the FC that was related to poor-recovery. RESULTS The poor-recovery group (n = 15) showed significantly stronger connectivity between the postcentral gyrus (postCG) and dorsolateral prefrontal cortex (DLPFC) than the good-recovery group (n = 12) preoperatively. When the cutoff value of the preoperative FC between the left postCG and right middle frontal gyrus included in DLPFC was >0.17, the sensitivity and specificity for poor recovery were 73% and 75%, respectively. CONCLUSIONS Our study showed that FC between the postCG and DLPFC may be a predictor of pain relief. This result suggested that assessing FC can lead to more informed surgical interventions for cervical spondylotic myelopathy.
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Affiliation(s)
- Masahiro Sawada
- Department of Neurosurgery, Shiga General Hospital, Moriyama, Japan.
| | - Takuro Nakae
- Department of Neurosurgery, Shiga General Hospital, Moriyama, Japan
| | | | - Masato Hojo
- Department of Neurosurgery, Shiga General Hospital, Moriyama, Japan
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Suzuki M, Onoe K, Sawada M, Takahashi N, Higo N, Murata Y, Tsukada H, Isa T, Onoe H, Nishimura Y. The Ventral Striatum is a Key Node for Functional Recovery of Finger Dexterity After Spinal Cord Injury in Monkeys. Cereb Cortex 2019; 30:3259-3270. [PMID: 31813974 PMCID: PMC7197201 DOI: 10.1093/cercor/bhz307] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 11/15/2019] [Accepted: 11/20/2019] [Indexed: 11/13/2022] Open
Abstract
In a recent study, we demonstrated that the ventral striatum (VSt) controls finger movements directly during the early recovery stage after spinal cord injury (SCI), implying that the VSt may be a part of neural substrates responsible for the recovery of dexterous finger movements. The VSt is accepted widely as a key node for motivation, but is not thought to be involved in the direct control of limb movements. Therefore, whether a causal relationship exists between the VSt and motor recovery after SCI is unknown, and the role of the VSt in the recovery of dexterous finger movements orfinger movements in general after SCI remains unclear. In the present study, functional brain imaging in a macaque model of SCI revealed a strengthened functional connectivity between motor-related areas and the VSt during the recovery process for precision grip, but not whole finger grip after SCI. Furthermore, permanent lesion of the VSt impeded the recoveryof precision grip, but not coarse grip. Thus, the VSt was needed specifically for functional recovery of dexterous finger movements. These results suggest that the VSt is the key node of the cortical reorganization required for functional recovery of finger dexterity.
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Affiliation(s)
- Michiaki Suzuki
- Neural Prosthesis Project, Dementia and Higher Brain Function, Tokyo Metropolitan Institute of Medical Science, Setagaya, Tokyo 156-8506, Japan.,Department of Developmental Physiology, National Institute for Physiological Sciences, Okazaki, Aichi 444-8585, Japan.,Department of Physiological Sciences, School of Life Science, SOKENDAI (The Graduate University for Advanced Studies), Hayama, Kanagawa 240-0193, Japan.,Department of Neuroscience, Graduate School of Medicine and Faculty of Medicine, Kyoto University, Sakyo, Kyoto 606-8501, Japan.,Japan Society for the Promotion of Science, Chiyoda, Tokyo 102-0083, Japan
| | - Kayo Onoe
- Laboratory for Pathophysiological and Health Science, RIKEN Center for Biosystems Dynamics Research, Kobe, Hyogo 650-0047, Japan
| | - Masahiro Sawada
- Department of Developmental Physiology, National Institute for Physiological Sciences, Okazaki, Aichi 444-8585, Japan.,Department of Neurosurgery, Graduate School of Medicine, Kyoto University, Sakyo, Kyoto 606-8501, Japan
| | - Nobuaki Takahashi
- Department of Developmental Physiology, National Institute for Physiological Sciences, Okazaki, Aichi 444-8585, Japan
| | - Noriyuki Higo
- Human Informatics Research Institute, National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8568, Japan
| | - Yumi Murata
- Human Informatics Research Institute, National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8568, Japan
| | - Hideo Tsukada
- Central Research Laboratory, Hamamatsu Photonics, Hamamatsu, Shizuoka 434-8601, Japan
| | - Tadashi Isa
- Department of Developmental Physiology, National Institute for Physiological Sciences, Okazaki, Aichi 444-8585, Japan.,Department of Physiological Sciences, School of Life Science, SOKENDAI (The Graduate University for Advanced Studies), Hayama, Kanagawa 240-0193, Japan.,Department of Neuroscience, Graduate School of Medicine and Faculty of Medicine, Kyoto University, Sakyo, Kyoto 606-8501, Japan.,Intitute for the Advanced Study of Human Biology (WPI-ASHBi), Kyoto University, Sakyo, Kyoto 606-8501, Japan.,Human Brain Research Center, Graduate School of Medicine and Faculty of Medicine, Kyoto University, Sakyo, Kyoto 606-8507, Japan
| | - Hirotaka Onoe
- Human Brain Research Center, Graduate School of Medicine and Faculty of Medicine, Kyoto University, Sakyo, Kyoto 606-8507, Japan
| | - Yukio Nishimura
- Neural Prosthesis Project, Dementia and Higher Brain Function, Tokyo Metropolitan Institute of Medical Science, Setagaya, Tokyo 156-8506, Japan.,Department of Developmental Physiology, National Institute for Physiological Sciences, Okazaki, Aichi 444-8585, Japan.,Department of Physiological Sciences, School of Life Science, SOKENDAI (The Graduate University for Advanced Studies), Hayama, Kanagawa 240-0193, Japan.,Department of Neuroscience, Graduate School of Medicine and Faculty of Medicine, Kyoto University, Sakyo, Kyoto 606-8501, Japan
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Ichikawa F, Andou M, Shirane T, Sakate S, Sawada M, Shirane A. Development of Training for Laparoscopic Surgery Using an Expert's Surgical Movie Simulator. J Minim Invasive Gynecol 2019. [DOI: 10.1016/j.jmig.2019.09.624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Shirane A, Andou M, Ichikawa F, Shirane T, Sawada M, Sakate S. Mastering the Anterior Approach of Laparoscopic Hysterectomy for the Huge Uterus. J Minim Invasive Gynecol 2019. [DOI: 10.1016/j.jmig.2019.09.584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Shirane A, Andou M, Shirane T, Ichikawa F, Sakate S, Sawada M. Recurrence of Endometriosis After Laparoscopic Hysterectomy. J Minim Invasive Gynecol 2019. [DOI: 10.1016/j.jmig.2019.09.764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Shirane T, Andou M, Ichikawa F, Sawada M, Shirane A, Sakate S. 2758 Easy-to-Master Slipknot. J Minim Invasive Gynecol 2019. [DOI: 10.1016/j.jmig.2019.09.257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Sawada M, Andou M, Ichikawa F, Shirane T, Sakate S, Shirane A. A Case of Recurrent Uterine Leiomyosarcoma Treated with Complete Laparoscopic Resection. J Minim Invasive Gynecol 2019. [DOI: 10.1016/j.jmig.2019.09.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Sawada M, Oe K, Hirata M, Kawamura H, Ueda N, Nakamura T, Iida H, Saito T. Linezolid versus daptomycin treatment for periprosthetic joint infections: a retrospective cohort study. J Orthop Surg Res 2019; 14:334. [PMID: 31651331 PMCID: PMC6814137 DOI: 10.1186/s13018-019-1375-7] [Citation(s) in RCA: 5] [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: 07/12/2019] [Accepted: 09/13/2019] [Indexed: 11/17/2022] Open
Abstract
Background Linezolid (LZD) and daptomycin (DAP) are predominantly used to target gram-positive pathogens; however, treatment effectiveness and adverse reactions for periprosthetic joint infections (PJIs) remain unknown. The aim of this study was to compare the effectiveness and adverse reactions of LZD and DAP for PJIs. Methods This study retrospectively evaluated 82 patients between June 2009 and December 2017, to compare the effectiveness of LZD (group L, n = 39) and DAP (group D, n = 43) for treatment of PJIs harboring gram-positive microorganisms. Surgical options used with LZD or DAP therapy included implant retention, implant removal, and a shift to another appropriate antibiotic. Infection control was defined as not requiring implant removal after the final treatment. Results Gram-positive pathogens were isolated from 72% of group L and 70% of group D patients, respectively. Whole infection control rates against gram-positive pathogens in groups L and D were 79% and 77%, respectively. Furthermore, infection control rates were 94% and 58% in group L and 75% and 80% in group D, without and with implant removal, respectively. Significantly higher clinical success rates and lower adverse event rates were observed in group D, including higher red blood cell and platelet counts and lower C-reactive protein (CRP) levels. Conclusions Although the effectiveness of LZD and DAP was equivalent in terms of infection control rates for refractory PJIs with gram-positive pathogens, DAP therapy significantly decreased CRP levels and caused fewer adverse events than LZD treatment.
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Affiliation(s)
- Masahiro Sawada
- Department of Orthopaedic Surgery, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka, 573-1010, Japan
| | - Kenichi Oe
- Department of Orthopaedic Surgery, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka, 573-1010, Japan.
| | - Masayuki Hirata
- Department of Orthopaedic Surgery, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka, 573-1010, Japan
| | - Hiroshi Kawamura
- Department of Orthopaedic Surgery, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka, 573-1010, Japan
| | - Narumi Ueda
- Department of Orthopaedic Surgery, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka, 573-1010, Japan
| | - Tomohisa Nakamura
- Department of Orthopaedic Surgery, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka, 573-1010, Japan
| | - Hirokazu Iida
- Department of Orthopaedic Surgery, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka, 573-1010, Japan
| | - Takanori Saito
- Department of Orthopaedic Surgery, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka, 573-1010, Japan
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Kato K, Sawada M, Nishimura Y. Bypassing stroke-damaged neural pathways via a neural interface induces targeted cortical adaptation. Nat Commun 2019; 10:4699. [PMID: 31619680 PMCID: PMC6796004 DOI: 10.1038/s41467-019-12647-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 09/20/2019] [Indexed: 12/03/2022] Open
Abstract
Regaining the function of an impaired limb is highly desirable in paralyzed individuals. One possible avenue to achieve this goal is to bridge the interrupted pathway between preserved neural structures and muscles using a brain–computer interface. Here, we demonstrate that monkeys with subcortical stroke were able to learn to use an artificial cortico-muscular connection (ACMC), which transforms cortical activity into electrical stimulation to the hand muscles, to regain volitional control of a paralysed hand. The ACMC induced an adaptive change of cortical activities throughout an extensive cortical area. In a targeted manner, modulating high-gamma activity became localized around an arbitrarily-selected cortical site controlling stimulation to the muscles. This adaptive change could be reset and localized rapidly to a new cortical site. Thus, the ACMC imparts new function for muscle control to connected cortical sites and triggers cortical adaptation to regain impaired motor function after stroke. Monkeys were trained to use an artificial cortico-muscular connection (ACMC) to regain control over a paralyzed hand following subcortical stroke. Control over the paralyzed hand was accompanied by the appearance of localized high-gamma modulation in the cortex, which could be rapidly reset and relocalized to a different cortical site to reactivate motor control.
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Affiliation(s)
- Kenji Kato
- Department of Developmental Physiology, National Institute for Physiological Sciences, 38 Nishigonaka, Myodaiji, Okazaki, Aichi, 444-8585, Japan.,Department of Physiological Sciences, School of Life Science, The Graduate University for Advanced Studies, SOKENDAI, Shonan Village, Hayama, Kanagawa, 240-0193, Japan.,Japan Society for The Promotion of Science, Kojimachi Business Center Building, 5-3-1 Kojimachi, Chiyoda, Tokyo, 102-0083, Japan.,Center of Assistive Robotics and Rehabilitation for Longevity and Good Health, National Center for Geriatrics and Gerontology, 7-430, Morioka, Obu, Aichi, 474-8511, Japan
| | - Masahiro Sawada
- Department of Developmental Physiology, National Institute for Physiological Sciences, 38 Nishigonaka, Myodaiji, Okazaki, Aichi, 444-8585, Japan.,Department of Neurosurgery, Graduate School of Kyoto University, 54 Shogoin-kawaharacho, Sakyo, Kyoto, 606-8507, Japan
| | - Yukio Nishimura
- Department of Developmental Physiology, National Institute for Physiological Sciences, 38 Nishigonaka, Myodaiji, Okazaki, Aichi, 444-8585, Japan. .,Department of Physiological Sciences, School of Life Science, The Graduate University for Advanced Studies, SOKENDAI, Shonan Village, Hayama, Kanagawa, 240-0193, Japan. .,Neural Prosthesis Project, Department of Dementia and Higher Brain Function, Tokyo Metropolitan Institute of Medical Science, 2-1-6, Kamikitazawa, Setagaya, Tokyo, 158-8506, Japan. .,Department of Neuroscience, Graduate School of Medicine and Faculty of Medicine, Kyoto University, Yoshida-Konoe, Sakyo, Kyoto, 606-8501, Japan. .,Precursory Research for Embryonic Science and Technology, Japan Science and Technology Agency, Sanban-tyo, Chiyoda, Tokyo, 102-0076, Japan.
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Pal A, Ghosh S, Joshi AG, Kumar S, Patil S, Gupta PK, Singh P, Gangwar VK, Prakash P, Singh RK, Schwier EF, Sawada M, Shimada K, Ghosh AK, Das A, Chatterjee S. Investigation of multi-mode spin-phonon coupling and local B-site disorder in Pr 2CoFeO 6 by Raman spectroscopy and correlation with its electronic structure by XPS and XAS studies. J Phys Condens Matter 2019; 31:275802. [PMID: 30921773 DOI: 10.1088/1361-648x/ab144f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Electronic structure of Pr2CoFeO6 (at 300 K) was investigated by x-ray photoemission spectroscopy (XPS) and x-ray absorption spectroscopy techniques. All three cations, i.e. Pr, Co and Fe were found to be trivalent in nature. XPS valance band analysis suggested the system to be insulating in nature. The analysis suggested that Co3+ ions exist in low spin state in the system. Moreover, Raman spectroscopy study indicated the random distribution of the B-site ions (Co/Fe) triggered by same charge states. In temperature-dependent Raman study, the relative heights of the two observed phonon modes exhibited anomalous behaviour near magnetic transition temperature T N ~ 270 K, thus indicating towards interplay between spin and phonon degrees of freedom in the system. Furthermore, clear anomalous softening was observed below T N which confirmed the existence of strong spin-phonon coupling occurring for at least two phonon modes of the system. The line width analysis of the phonon modes essentially ruled out the role of magnetostriction effect in the observed phonon anomaly. The investigation of the lattice parameter variation across T N (obtained from the temperature-dependent neutron diffraction measurements) further confirmed the existence of the spin-phonon coupling.
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Affiliation(s)
- Arkadeb Pal
- Department of Physics, Indian Institute of Technology (BHU), Varanasi 221005, India
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Ilic L, Sawada M, Zarzelli A. Deep mapping gentrification in a large Canadian city using deep learning and Google Street View. PLoS One 2019; 14:e0212814. [PMID: 30865701 PMCID: PMC6415887 DOI: 10.1371/journal.pone.0212814] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 02/08/2019] [Indexed: 11/18/2022] Open
Abstract
Gentrification is multidimensional and complex, but there is general agreement that visible changes to neighbourhoods are a clear manifestation of the process. Recent advances in computer vision and deep learning provide a unique opportunity to support automated mapping or ‘deep mapping’ of perceptual environmental attributes. We present a Siamese convolutional neural network (SCNN) that automatically detects gentrification-like visual changes in temporal sequences of Google Street View (GSV) images. Our SCNN achieves 95.6% test accuracy and is subsequently applied to GSV sequences at 86110 individual properties over a 9-year period in Ottawa, Canada. We use Kernel Density Estimation (KDE) to produce maps that illustrate where the spatial concentration of visual property improvements was highest within the study area at different times from 2007–2016. We find strong concordance between the mapped SCNN results and the spatial distribution of building permits in the City of Ottawa from 2011 to 2016. Our mapped results confirm those urban areas that are known to be undergoing gentrification as well as revealing areas undergoing gentrification that were previously unknown. Our approach differs from previous works because we examine the atomic unit of gentrification, namely, the individual property, for visual property improvements over time and we rely on KDE to describe regions of high spatial intensity that are indicative of gentrification processes.
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Affiliation(s)
- Lazar Ilic
- Laboratory for Applied Geomatics and GIS Science (LAGGISS), Department of Geography, Environment and Geomatics, University of Ottawa, Ottawa, Canada
| | - M. Sawada
- Laboratory for Applied Geomatics and GIS Science (LAGGISS), Department of Geography, Environment and Geomatics, University of Ottawa, Ottawa, Canada
- * E-mail:
| | - Amaury Zarzelli
- Laboratory for Applied Geomatics and GIS Science (LAGGISS), Department of Geography, Environment and Geomatics, University of Ottawa, Ottawa, Canada
- l’École nationale des sciences géographiques (ENSG-Géomatique), Paris, Champs-sur-Marne, France
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Ikeda K, Sawada M, Morioka H, Nagasawa J, Miura K, Hanashiro S, Kyuzen M, Yanagihashi M, Takazawa T, Murata K, Kawabe K, Iwasaki Y. Abstract WP233: Distinct Vascular Profile in Middle-Aged Migraineurs: Higher Pulse Wave Velocity, Putaminal État Criblé and Incomplete Posterior Circle of Willis. Stroke 2019. [DOI: 10.1161/str.50.suppl_1.wp233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background:
Migraineurs may develop stroke and cardiovascular diseases (CVD). We evaluated vascular findings in middle-aged migraineurs without CVD risks.
Methods:
Migraine was diagnosed according to ICHD-3 by direct interview and neurological examination. Migraine was classified into migraine with aura (MA) and migraine without aura (MO). Frequency of migraine attacks were denoted as < 1 /mo or ≥ 1 /mo. Severity of migraine was scaled by Headache Impact Test-6. Usual CVD risk factors of smoking, obesity, hypertension, diabetes mellitus and dyslipidemia were examined. Brachial-ankle pulse wave velocity (baPWV) and ankle brachial index (ABI) were measured using a plethysmography. Brain magnetic resonance imaging (MRI) and angiography (MRA) were performed. Circle of Willis (CW) on MRA was morphologically classified into 2 types: complete posterior CW defined as the presence of both posterior communicating arteries and both P1 segments of posterior cerebral arteries, and other patterns of incomplete posterior CW (Ikeda et al. Headache 2007).
Results:
A total of 317 migraineurs (235 women and 82 men) were diagnosed. Thirty patients with CVD risk factors were excluded, and the study was completed in 287 migraineurs (215 women and 72 men), MA (n=56) and MO (n=231). Mean age (SD) was 44.0 (9.3) years. Consecutive 300 age- and sex-matched controls without migraine and CVD risks were prepared during the study. Compared to controls, baPWV was increased in migraineurs (P<0.05) and MA patients (P<0.01). ABI did not differ between migraineurs and controls. Other clinical findings of migraineurs were not linked to baPWV and ABI. MRI disclosed higher frequency of putaminal état criblé in migraineurs (P<0.05) and MA patients (P<0.01) compared to controls. Three MA patients were diagnosed with hereditary cerebral angiopathy of CADASIL (n=1), Moyamoya disease (n=1) and cavernous angioma (n=1). Morphological CW studies lower frequency of complete posterior CW in migraineurs (P<0.05) and MA patients (P<0.01) compared to controls.
Conclusion:
The present study suggested vascular changes of baPWV, putaminal état criblé and CW shape in migraineurs, especially in MA sufferers. The distinct vascular profile could contribute to higher risk of stroke and CVD in migraineurs.
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Affiliation(s)
- Ken Ikeda
- Neurology, Toho Univ Omori Med Cntr, Tokyo, Japan
| | | | | | | | - Ken Miura
- Neurology, Toho Univ Omori Med Cntr, Tokyo, Japan
| | | | - Maya Kyuzen
- Neurology, Toho Univ Omori Med Cntr, Tokyo, Japan
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44
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Andou M, Sawada M, Hamasaki Y, Shirane A. Combined Robotic and Laparoscopic Surgical Staging for Endometrial Cancer. J Minim Invasive Gynecol 2018. [DOI: 10.1016/j.jmig.2018.09.017] [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]
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45
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Andou M, Sawada M, Hamasaki Y, Shirane A. Minimally Invasive Repair for Urinary Tract Fistula. J Minim Invasive Gynecol 2018. [DOI: 10.1016/j.jmig.2018.09.536] [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: 11/16/2022]
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46
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Sawada M, Andou M, Hamasaki Y, Shirane A. Assistants Improve the Surgical Quality! Safer and Quicker—The Roles and the Techniques of 1st Assistant Surgeon in Laparoscopic Surgery. J Minim Invasive Gynecol 2018. [DOI: 10.1016/j.jmig.2018.09.472] [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]
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47
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Shirane A, Hamasaki Y, Andou M, Sawada M. Concurrent ART and Laparoscopic Surgery for Intestinal Endometriosis. J Minim Invasive Gynecol 2018. [DOI: 10.1016/j.jmig.2018.09.565] [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]
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48
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Shirane A, Andou M, Sawada M, Hamasaki Y. Laparoscopic Needle Handling. J Minim Invasive Gynecol 2018. [DOI: 10.1016/j.jmig.2018.09.420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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49
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Andou M, Sawada M, Hamasaki Y, Shirane A. Vagino-Laparoscopic Approach for Pelvic Organ Prolapse. J Minim Invasive Gynecol 2018. [DOI: 10.1016/j.jmig.2018.09.759] [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]
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50
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Kokabu T, Mori T, Matsushima H, Tarumi Y, Yoriki K, Kuroboshi H, Sawada M, Umemura S, Kitawaki J. Estrogen-related receptor α as a potential molecular target for endometrial cancer therapy. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy268.046] [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: 11/12/2022] Open
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