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Ogawa H, Sengoku M, Nakamura Y, Shimokawa T, Ohnishi K, Akiyama H. Increase in the Posterior Tibial Slope Provides Better Joint Awareness and Patient Satisfaction in Cruciate-Retaining Total Knee Arthroplasty. J Knee Surg 2024; 37:316-325. [PMID: 37192658 DOI: 10.1055/a-2094-8967] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
The effect of the posterior tibial slope (PTS) in cruciate-retaining total knee arthroplasty (CR-TKA) on clinical outcomes remains unclear. We aimed to investigate (1) the effect of alteration of the PTS on clinical outcomes, including patient satisfaction and joint awareness, and (2) the relationship between the patient-reported outcomes, the PTS, and compartment loading. Based on the alteration of the PTS after CR-TKA, 39 and 16 patients were stratified into increased and decreased PTS groups, respectively. Clinical evaluation was performed by the Knee Society Score (KSS) 2011 and the Forgotten Joint Score-12 (FJS-12). Compartment loading was intraoperatively assessed. KSS 2011 (symptoms, satisfaction, and total score) was significantly higher (p = 0.018, 0.023, and 0.040, respectively), and FJS ("climbing stairs?") was significantly lower (p = 0.025) in the increased PTS group compared with the decreased PTS group. The decrease in both medial and lateral compartment loading of Δ45°, Δ90°, and ΔFull was significantly greater in the increased PTS group than in the decreased PTS group (p< 0.01 for both comparisons). Medial compartment loading of Δ45°, Δ90°, and ΔFull significantly correlated with KSS 2011 for "symptom" (r = - 0.4042, -0.4164, and -0.4010, respectively; p = 0.0267, 0.0246, and 0.0311, respectively). ΔPTS significantly correlated with medial compartment loading differentials of Δ45°, Δ90°, and ΔFull (r = - 0.3288, -0.3792, and -0.4424, respectively; p = 0.0358, 0.01558, and 0.0043, respectively). Patients with increased PTS showed better symptoms and higher patient satisfaction compared with those with decreased PTS following CR-TKA, possibly due to a greater decrease in compartment loading during knee flexion.Level of evidence:level IV, therapeutic case series.
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Affiliation(s)
- Hiroyasu Ogawa
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Gifu, Japan
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Ogaki, Gifu, Japan
| | - Masaya Sengoku
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Ogaki, Gifu, Japan
| | - Yutaka Nakamura
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Ogaki, Gifu, Japan
| | - Tetsuya Shimokawa
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Ogaki, Gifu, Japan
| | - Kazuichiro Ohnishi
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Ogaki, Gifu, Japan
| | - Haruhiko Akiyama
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Gifu, Japan
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Nakamura Y, Ogawa H, Ichikawa K, Sohmiya K, Sengoku M, Shimokawa T, Onishi K, Akiyama H. A new magnetic resonance imaging grading system for anterior cruciate ligament myxoid degeneration in osteoarthritis of the knee. Orthop Traumatol Surg Res 2024; 110:103740. [PMID: 37913867 DOI: 10.1016/j.otsr.2023.103740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 07/27/2023] [Accepted: 08/28/2023] [Indexed: 11/03/2023]
Abstract
BACKGROUND This study aimed to investigate association between magnetic resonance imaging (MRI) and histological findings of degenerated anterior cruciate ligament (ACL) in knee osteoarthritis (OA), and based on this result, to develop a new ACL degeneration grading system by MRI that corresponds to histological findings of degenerated ACL. HYPOTHESIS MRI signal intensity of the ACL could correspond to histological findings of collagen degeneration. PATIENTS AND METHODS A collection of 106 ACL specimens from 85 patients who underwent primary total knee arthroplasty was investigated for signal intensity of the ACL and muscle on axial Fat-saturated proton density-weighted MRI and MRI signal intensity ratio (ACL/muscle) was calculated. The correlation between ACL histological degeneration and MRI ACL/muscle signal intensity ratio was analyzed. The ACL was stratified into 3 grades based on signal intensity relative to muscle intensity (grade 1, low; grade 2, iso; and grade 3, high), and the extent to ACL degeneration in each MRI ACL degeneration grade was evaluated. RESULTS Collagen degeneration (53.5±24.0%) and myxoid change (25.2±18.8%) in degenerated ACL significantly correlated with MRI signal intensity ratio of the ACL/muscle (r=0.62, p<0.0001; r=0.67, p<0.0001). ACL were assigned to grade 1 (n=22 [20.8%]), grade 2 (n=56 [52.8%]), and grade 3 (n=28 [26.4%]). ACL collagen degeneration was 34.8±18.4% in grade 1, 49.3±21.7% in grade 2, and 76.6±12.0% in grade 3. ACL myxoid change was 10.0±11.3% in grade 1, 21.3±14.1% in grade 2, and 45.0±15.3% in grade 3. DISCUSSION The ACL/muscle signal intensity ratio on MRI correlated with the extent to ACL myxoid degeneration. The new MRI ACL degeneration grade is helpful to estimate the extent to ACL myxoid degeneration in knee OA. LEVEL OF EVIDENCE III; retrospective cohort study.
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Affiliation(s)
- Yutaka Nakamura
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu, 501-1194 Japan
| | - Hiroyasu Ogawa
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu, 501-1194 Japan; Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Hayashi-machi 6-85-1, Ogaki, Gifu, 503-0015 Japan.
| | - Katsuhiro Ichikawa
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu, 501-1194 Japan
| | - Kazuki Sohmiya
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu, 501-1194 Japan
| | - Masaya Sengoku
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Hayashi-machi 6-85-1, Ogaki, Gifu, 503-0015 Japan
| | - Tetsuya Shimokawa
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Hayashi-machi 6-85-1, Ogaki, Gifu, 503-0015 Japan
| | - Kazuichiro Onishi
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Hayashi-machi 6-85-1, Ogaki, Gifu, 503-0015 Japan
| | - Haruhiko Akiyama
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu, 501-1194 Japan
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Ogawa H, Nakamura Y, Sengoku M, Shimokawa T, Ohnishi K, Akiyama H. Effect of medial opening wedge distal tibial tuberosity osteotomy on possible neuropathic pain in patients with osteoarthritis of the knee. Knee 2023; 43:114-121. [PMID: 37385112 DOI: 10.1016/j.knee.2023.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 03/22/2023] [Accepted: 06/05/2023] [Indexed: 07/01/2023]
Abstract
BACKGROUND There is a paucity of literature regarding the changes and features of neuropathic pain (NP) in knee osteoarthritis (OA) following medial opening wedge distal tibial tuberosity osteotomy (OWDTO). This study aimed to investigate the effect of OWDTO on NP in knee OA; we hypothesized that OWDTO improves knee symptoms and functions and also meets patient satisfaction in those with knee OA with possible NP or without NP. METHODS Fifty-two consecutive patients who underwent OWDTO were categorized into the unlikely NP and possible NP groups using the painDETECT questionnaire. The Western Ontario and McMaster Universities Arthritis Index (WOMAC) score and the Knee Society Score 2011 (KSS 2011) were compared between the groups preoperatively and at the 1-year follow-up. RESULTS The number of patients having possible NP significantly decreased from 12 (23.1%) preoperatively to one (1.9%) postoperatively (p < 0.001). The patient with postoperative possible NP also had possible NP preoperatively. All preoperative sub-scores of WOMAC were significantly higher in the possible NP group than in the unlikely NP group (p = 0.018, 0.013, 0.004, and 0.005, respectively); however, the postoperative scores did not differ between the two groups. Regarding the KSS 2011, the preoperative scores for symptom and functional activities were significantly lower in the possible NP group than in the unlikely NP group (p = 0.031 and 0.024, respectively). CONCLUSIONS OWDTO is an effective surgery for patients with possible NP; it improves symptoms and knee function as well as meets patient satisfaction. LEVEL OF EVIDENCE Level IV, therapeutic case series.
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Affiliation(s)
- Hiroyasu Ogawa
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine. Yanagido 1-1, Gifu 501-1194, Japan; Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital. Hayashi-machi 6-85-1, Ogaki, Gifu 503-0015, Japan.
| | - Yutaka Nakamura
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital. Hayashi-machi 6-85-1, Ogaki, Gifu 503-0015, Japan
| | - Masaya Sengoku
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital. Hayashi-machi 6-85-1, Ogaki, Gifu 503-0015, Japan
| | - Tetsuya Shimokawa
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital. Hayashi-machi 6-85-1, Ogaki, Gifu 503-0015, Japan
| | - Kazuichiro Ohnishi
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital. Hayashi-machi 6-85-1, Ogaki, Gifu 503-0015, Japan
| | - Haruhiko Akiyama
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine. Yanagido 1-1, Gifu 501-1194, Japan
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Koshino H, Osaka M, Shimokawa T, Kaneda M, Taniguchi S, Minamoto T, Yaoi K, Azuma M, Higo K, Osaka N. Cooperation and competition between the default mode network and frontal parietal network in the elderly. Front Psychol 2023; 14:1140399. [PMID: 37275713 PMCID: PMC10237017 DOI: 10.3389/fpsyg.2023.1140399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 04/26/2023] [Indexed: 06/07/2023] Open
Abstract
Recent research has shown that the Default Mode Network (DMN) typically exhibits increased activation during processing of social and personal information but shows deactivation during working memory (WM) tasks. Previously, we reported the Frontal Parietal Network (FPN) and DMN showed coactivation during task preparation whereas the DMN exhibited deactivation during task execution in working memory tasks. Aging research has shown that older adults exhibited decreased functional connectivity in the DMN relative to younger adults. Here, we investigated whether age-related cognitive decline is related to a reduced relationship between the FPN and DMN using a working memory task during the execution period. First, we replicated our previous finding that the FPN and DMN showed coactivation during the preparation period, whereas the DMN showed deactivation during the execution period. The older adults showed reduced DMN activity during task preparation and reduced deactivation during task execution; however, they exhibited a higher magnitude of activation in the FPN than the young individuals during task execution. Functional connectivity analyses showed that the elderly group, compared to the young group, showed weaker correlations within the FPN and the DMN, weaker positive correlations between the FPN and DMN during task preparation, and weaker negative correlations between the FPN and DMN during execution. The results suggest that cognitive decline in the older adults might be related to reduced connectivity within the DMN as well as between the FPN and DMN.
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Affiliation(s)
- Hideya Koshino
- Department of Psychology, California State University, San Bernardino, CA, United States
| | - Mariko Osaka
- Graduate School of Human Sciences, Osaka University, Suita, Osaka, Japan
- Center for Information and Neural Networks (CiNet), National Institute of Information and Communications Technology (NICT), Suita, Osaka, Japan
| | - Tetsuya Shimokawa
- Center for Information and Neural Networks (CiNet), National Institute of Information and Communications Technology (NICT), Suita, Osaka, Japan
| | - Mizuki Kaneda
- Center for Information and Neural Networks (CiNet), National Institute of Information and Communications Technology (NICT), Suita, Osaka, Japan
| | - Seira Taniguchi
- Center for Information and Neural Networks (CiNet), National Institute of Information and Communications Technology (NICT), Suita, Osaka, Japan
| | - Takehiro Minamoto
- Graduate School of Human Sciences, Osaka University, Suita, Osaka, Japan
| | - Ken Yaoi
- Department of Psychology, Graduate School of Letters, Kyoto University, Kyoto, Japan
| | - Miyuki Azuma
- Center for Information and Neural Networks (CiNet), National Institute of Information and Communications Technology (NICT), Suita, Osaka, Japan
| | - Katsuki Higo
- Center for Information and Neural Networks (CiNet), National Institute of Information and Communications Technology (NICT), Suita, Osaka, Japan
| | - Naoyuki Osaka
- Department of Psychology, Graduate School of Letters, Kyoto University, Kyoto, Japan
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Yamashita M, Shimokawa T, Tanemura R. Age-related learning difficulty through trial-and-error method associated with decreased default mode network integration in healthy middle-aged adults. J Clin Exp Neuropsychol 2023; 45:433-442. [PMID: 37540061 DOI: 10.1080/13803395.2023.2242106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 07/21/2023] [Indexed: 08/05/2023]
Abstract
INTRODUCTION Efficient learning is critical to adapting to different environments. There are well-known learning principles in cognitive rehabilitation, including errorless (EL) and trial-and-error (T&E) learning; however, little is known about their underlying neural mechanisms. In the current study, to understand the age-related changes in learning benefits and neural mechanisms applying EL and T&E learning methods in healthy middle-aged adults, we conducted a graph theoretical analysis using functional magnetic resonance imaging data and analyzed the relationship between learning benefits and age, as well as functional network connectivity and age, with both learning principles. METHOD A total of 43 participants performed a color-name association task through EL and T&E learning methods. We focused on the functional connectivity patterns of the default mode network (DMN) since previous studies demonstrated this network to be more distinctive and important for the T&E learning method than EL. Within-network functional connectivity was used as the graph metric. RESULTS Age showed significant moderate negative correlations with T&E scores and within-DMN functional connectivity in the test state following T&E learning. Conversely, age was not significantly correlated with EL scores or within-DMN functional connectivity in either the EL learning or test states. CONCLUSIONS Our findings demonstrate the age-related learning decline associated with decreased DMN integration with aging, when applying the T&E method but not the EL method, even in healthy middle-aged adults. Relationships between the underlying neural network and age are different depending on the learning method. This suggests the need to take into consideration the remaining learning ability through the T&E learning method compared to normal aging and to utilize residual DMN functioning, in addition to the comparison between score differences between EL and T&E methods, when tailoring an individual learning approach.
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Affiliation(s)
- Madoka Yamashita
- Department of Rehabilitation, Kansai Medical University, Osaka, Japan
- Department of Rehabilitation Science, Graduate School of Health Sciences Discipline, Life and Medical Sciences Area, Kobe University, Hyogo, Japan
| | - Tetsuya Shimokawa
- Graduate School of Information Science and Technology, Osaka University, Osaka, Japan
| | - Rumi Tanemura
- Department of Rehabilitation, Kansai Medical University, Osaka, Japan
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Ogi Y, Egi H, Ishimaru K, Koga S, Yoshida M, Kikuchi S, Akita S, Sugishita H, Matsumoto H, Shimokawa T, Takeuchi A, Watanabe Y. Cadaveric and CT angiography study of vessels around the transverse colon mesentery. World J Surg Oncol 2023; 21:36. [PMID: 36747176 PMCID: PMC9901106 DOI: 10.1186/s12957-023-02919-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 01/30/2023] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Laparoscopic and robotic surgery for transverse colon cancer are difficult due to complex fusion of the foregut and midgut and variation of the vessels of the transverse colon. Although the vessels of the right colon have been investigated, middle colic artery (MCA) variation and the relationship with vessels around the transvers colon are unknown. We investigated variation of the MCA using computed tomography angiography (CTA) and cadaver specimen and the relationship between the superior mesenteric vein (SMV) and MCA using CTA. The classification of vessels around the transverse colon may lead to safer and reliable surgery. METHODS This study included 505 consecutive patients who underwent CTA in our institution from 2014 to 2020 and 44 cadaver specimens. Vascular anatomical classifications and relationships were analyzed using CT images. RESULTS The MCA was defined as the arteries arising from the superior mesenteric artery (SMA) that flowed into the transverse colon at the distal ends. The classifications were as follows: type I, branching right and left from common trunk; type II, the right and left branches bifurcated separately from the SMA; and type III, the MCA branched from a vessel other than the SMA. Type II was subclassified into two subtypes, type IIa with one left branch and type IIb with two or more left branches from SMA. In the CTA and cadaver studies, respectively, the classifications were as follows: type I, n = 290 and n = 31; type IIa, n = 211 and n = 13; type IIb, n = 3 and n = 0; and type III, n = 1 and n = 0. We classified the relationship between the MCA and left side of the SMV into three types: type A, a common trunk runs along the left edge of the SMV (n = 173; 59.7%); type B, a right branch of the MCA runs along the left edge of the SMV (n = 116; 40.0%); and type C, the MCA runs dorsal of the SMV (n = 1; 0.3%). CONCLUSIONS This study revealed that The MCA branching classifications and relationship between the SMV and MCA. Preoperative CT angiography may be able to reliably identify vessel variation, which may be useful in clinical practice.
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Affiliation(s)
- Yusuke Ogi
- grid.452478.80000 0004 0621 7227Division of Gastrointestinal Surgery and Surgical Oncology, Ehime University Hospital, Toon City, Ehime 454 Shitsukawa791-0295 Japan
| | - Hiroyuki Egi
- Division of Gastrointestinal Surgery and Surgical Oncology, Ehime University Hospital, Toon City, Ehime, 454 Shitsukawa791-0295, Japan.
| | - Kei Ishimaru
- grid.452478.80000 0004 0621 7227Division of Gastrointestinal Surgery and Surgical Oncology, Ehime University Hospital, Toon City, Ehime 454 Shitsukawa791-0295 Japan
| | - Shigehiro Koga
- grid.452478.80000 0004 0621 7227Division of Gastrointestinal Surgery and Surgical Oncology, Ehime University Hospital, Toon City, Ehime 454 Shitsukawa791-0295 Japan
| | - Motohira Yoshida
- grid.452478.80000 0004 0621 7227Division of Gastrointestinal Surgery and Surgical Oncology, Ehime University Hospital, Toon City, Ehime 454 Shitsukawa791-0295 Japan
| | - Satoshi Kikuchi
- grid.452478.80000 0004 0621 7227Division of Gastrointestinal Surgery and Surgical Oncology, Ehime University Hospital, Toon City, Ehime 454 Shitsukawa791-0295 Japan
| | - Satoshi Akita
- grid.452478.80000 0004 0621 7227Division of Gastrointestinal Surgery and Surgical Oncology, Ehime University Hospital, Toon City, Ehime 454 Shitsukawa791-0295 Japan
| | - Hiroki Sugishita
- grid.452478.80000 0004 0621 7227Division of Gastrointestinal Surgery and Surgical Oncology, Ehime University Hospital, Toon City, Ehime 454 Shitsukawa791-0295 Japan
| | - Hironori Matsumoto
- grid.452478.80000 0004 0621 7227Division of Gastrointestinal Surgery and Surgical Oncology, Ehime University Hospital, Toon City, Ehime 454 Shitsukawa791-0295 Japan
| | - Tetsuya Shimokawa
- grid.255464.40000 0001 1011 3808Division of Developmental Biology and Functional Genomics, Graduate School of Medicine, Ehime University, 454 Shitsukawa, Toon City, Ehime 795-0295 Japan
| | - Akihide Takeuchi
- grid.255464.40000 0001 1011 3808Division of Developmental Biology and Functional Genomics, Graduate School of Medicine, Ehime University, 454 Shitsukawa, Toon City, Ehime 795-0295 Japan
| | - Yuji Watanabe
- grid.452478.80000 0004 0621 7227Division of Gastrointestinal Surgery and Surgical Oncology, Ehime University Hospital, Toon City, Ehime 454 Shitsukawa791-0295 Japan
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Khan S, Takeuchi A, Nabeka H, Khan F, Shimokawa T, Takanezawa S, Saitou T, Imamura T, Tachibana T, Nishizono A, Hamada F, Matsuda S. Administration of prosaposin-derived neurotrophic factor to neural tube defects facilitates regeneration and restores neurological functions. iScience 2023; 26:106277. [PMID: 37153447 PMCID: PMC10156616 DOI: 10.1016/j.isci.2023.106277] [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] [Received: 12/12/2022] [Revised: 01/24/2023] [Accepted: 02/20/2023] [Indexed: 03/03/2023] Open
Abstract
Neural tube defects (NTDs) cause fetal and pediatric deaths or lifelong neurological disabilities. No effective treatment is currently available for NTDs. We attempted to elucidate the pathogenesis of NTDs and propose a therapeutic strategy. Intra-amniotic treatment with prosaposin-derived 18-mer peptide (PS18) protected the spinal cord from secondary damage and rescued neurological function in an established chicken model of spina bifida aperta (SBA), the severe type of NTDs. PS18 promoted the formation of a neuroectodermal covering over the defective neural tube within 24-h after treatment, enhanced the regeneration/restoration process, and decreased apoptotic activity in the developing spinal cord. PS18 reduced the SBA wound and almost completely formed the spinal cord. SBA chicks that received PS18 exhibited relatively normal walking and sensorimotor responses, and reduced pain-associated behavior in postnatal life. In conclusion, PS18 is a promising therapeutic agent for NTDs and may be useful for treating other types of spinal cord injuries.
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Affiliation(s)
- Sakirul Khan
- Department of Developmental Biology and Functional Genomics, Ehime University Graduate School of Medicine, Toon, Ehime 791-0295, Japan
- Department of Microbiology, Faculty of Medicine, Oita University, Yufu, Oita 879-5593, Japan
| | - Akihide Takeuchi
- Department of Developmental Biology and Functional Genomics, Ehime University Graduate School of Medicine, Toon, Ehime 791-0295, Japan
| | - Hiroaki Nabeka
- Department of Physiological Chemistry, College of Pharmaceutical Sciences, School of Clinical Pharmacy, Matsuyama University, Matsuyama, Ehime 790-8578, Japan
| | - Farzana Khan
- Department of Developmental Biology and Functional Genomics, Ehime University Graduate School of Medicine, Toon, Ehime 791-0295, Japan
- Department of Human Anatomy, Faculty of Medicine, Oita University, Yufu, Oita 879-5593, Japan
| | - Tetsuya Shimokawa
- Department of Developmental Biology and Functional Genomics, Ehime University Graduate School of Medicine, Toon, Ehime 791-0295, Japan
| | - Sota Takanezawa
- Department of Molecular Medicine for Pathogenesis, Ehime University Graduate School of Medicine, Toon, Ehime 791-0295, Japan
| | - Takashi Saitou
- Department of Molecular Medicine for Pathogenesis, Ehime University Graduate School of Medicine, Toon, Ehime 791-0295, Japan
| | - Takeshi Imamura
- Department of Molecular Medicine for Pathogenesis, Ehime University Graduate School of Medicine, Toon, Ehime 791-0295, Japan
| | - Tetsuya Tachibana
- Department of Agrobiological Science, Faculty of Agriculture, Ehime University, Matsuyama, Ehime 790-8566, Japan
| | - Akira Nishizono
- Department of Microbiology, Faculty of Medicine, Oita University, Yufu, Oita 879-5593, Japan
- Research Center for Global and Local Infectious Diseases, Oita University, Yufu, Oita 879-5593, Japan
| | - Fumihiko Hamada
- Department of Human Anatomy, Faculty of Medicine, Oita University, Yufu, Oita 879-5593, Japan
| | - Seiji Matsuda
- Department of Developmental Biology and Functional Genomics, Ehime University Graduate School of Medicine, Toon, Ehime 791-0295, Japan
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Ogawa H, Nakamura Y, Sengoku M, Shimokawa T, Sohmiya K, Ohnishi K, Matsumoto K, Akiyama H. Can radiological findings detect neuropathic pain in patients with osteoarthritis of the knee undergoing surgery? J Orthop Surg (Hong Kong) 2023; 31:10225536231158149. [PMID: 36787881 DOI: 10.1177/10225536231158149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/16/2023] Open
Abstract
OBJECTIVES The mechanism underlying neuropathic pain (NP) in osteoarthritis (OA) of the knee is not completely understood. This study aimed to investigate whether possible NP in patients with knee OA undergoing knee surgery is associated with specific radiological findings. METHODS This study included 197 patients who underwent knee surgery for symptomatic knee OA. Clinical evaluation was performed using the Central Sensitization Inventory (CSI), Western Ontario and McMaster Universities Arthritis Index (WOMAC), and PainDETECT questionnaire. Radiological evaluation was performed using the hip-knee-ankle (HKA) angle, posterior tibial slope (PTS), varus and valgus laxities, and magnetic resonance imaging OA Knee Score (MOAKS). Radiological findings were compared between patients with possible and unlikely NP. Logistic regression analysis was performed to identify the predictive factors for NP. RESULTS There were 163 and 34 patients with unlikely NP and with possible NP, respectively. The percentage of patients with CSI score ≥ 40 was significantly higher in the possible NP group than in the unlikely NP group (17.6% vs. 6.1%). Patients with possible NP had worse WOMAC scores than patients with unlikely NP. There were no significant positive associations between the possible NP and radiological findings in knee OA. Regression analysis showed no predictive factors for possible NP. CONCLUSIONS Possible NP is not associated with specific radiological findings in knee OA. Patients with possible NP may mediate CS and experience more severe symptoms, including decreased knee function and lower quality of life, than patients with unlikely NP.
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Affiliation(s)
- Hiroyasu Ogawa
- Department of Orthopaedic Surgery, 215099Gifu University Graduate School of Medicine, Gifu, Japan.,Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Ogaki, Gifu, Japan
| | - Yutaka Nakamura
- Department of Orthopaedic Surgery, 215099Gifu University Graduate School of Medicine, Gifu, Japan
| | - Masaya Sengoku
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Ogaki, Gifu, Japan
| | - Tetsuya Shimokawa
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Ogaki, Gifu, Japan
| | - Kazuki Sohmiya
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Ogaki, Gifu, Japan
| | - Kazuichiro Ohnishi
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Ogaki, Gifu, Japan
| | - Kazu Matsumoto
- Department of Orthopaedic Surgery, 215099Gifu University Graduate School of Medicine, Gifu, Japan
| | - Haruhiko Akiyama
- Department of Orthopaedic Surgery, 215099Gifu University Graduate School of Medicine, Gifu, Japan
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Ogawa H, Sengoku M, Shimokawa T, Nakamura Y, Ohnishi K, Matsumoto K, Akiyama H. Extra-articular factors of the femur and tibia affecting knee balance in mechanically aligned total knee arthroplasty. Orthop Traumatol Surg Res 2022; 108:103297. [PMID: 35508294 DOI: 10.1016/j.otsr.2022.103297] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 02/22/2022] [Accepted: 03/21/2022] [Indexed: 02/03/2023]
Abstract
PURPOSE Although the joint gap distance and compartment loading of the knee are different parameters for obtaining balanced knees in patients with total knee arthroplasty (TKA), the extent to which a balanced knee is achieved in patients with mechanically aligned TKA (MA-TKA) is unclear. This study aimed to investigate the anatomical factors that affect the ligament balancing in MA-TKA according to a gap balancing technique by measured resection technique. METHODS The relationship between compartment loading, gap distance, and lower limb alignment was analysed in forty-three patients who underwent navigation-assisted MA-TKA with the minimum soft-tissue release. Radiographic parameters included hip-knee-ankle (HKA) angle, femorotibial angle, mechanical lateral distal femoral angle (mLDFA), medial proximal tibial angle, posterior tibial slope, varus and valgus joint line convergence angle, femoral valgus angle, femoral shaft curve, and tibial shaft curve (TSC). RESULTS The postoperative HKA angle was 0.4±1.5°, with one coronal alignment outlier (2.3%). The gap distance showed four unbalanced knees for extension (9.3%) and flexion (9.3%), whereas the compartment loading identified 17 unbalanced knees (39.5%) at extension, 8 (18.6%) at 45° flexion, 7 (16.2%) at 90° flexion, and 10 (23.2%) at full flexion in MA-TKA. Mediolateral differentials of compartment loading correlated with femoral valgus angle (0°, 45°, and 90° flexion), mLDFA (45° and 90° flexion), and TSC (45° and 90° flexion). Femoral valgus angle and TSC were risk factors of the mediolateral differentials of compartment loading. CONCLUSION Extra-articular factors of femoral valgus angle, mLDFA, and TSC were associated with the mediolateral imbalance of compartmental loading, suggesting there is a limit to obtaining balanced knees in MA-TKA due to these unadjustable extra-articular factors. LEVEL OF EVIDENCE IV, therapeutic case series.
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Affiliation(s)
- Hiroyasu Ogawa
- Department of Orthopaedic Surgery, Ogaki-Tokushukai Hospital, Hayashi-machi 6-85-1, 503-0015 Ogaki, Gifu, Japan; Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, 501-1194 Gifu, Japan.
| | - Masaya Sengoku
- Department of Orthopaedic Surgery, Ogaki-Tokushukai Hospital, Hayashi-machi 6-85-1, 503-0015 Ogaki, Gifu, Japan
| | - Tetsuya Shimokawa
- Department of Orthopaedic Surgery, Ogaki-Tokushukai Hospital, Hayashi-machi 6-85-1, 503-0015 Ogaki, Gifu, Japan
| | - Yutaka Nakamura
- Department of Orthopaedic Surgery, Ogaki-Tokushukai Hospital, Hayashi-machi 6-85-1, 503-0015 Ogaki, Gifu, Japan
| | - Kazuichiro Ohnishi
- Department of Orthopaedic Surgery, Ogaki-Tokushukai Hospital, Hayashi-machi 6-85-1, 503-0015 Ogaki, Gifu, Japan
| | - Kazu Matsumoto
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, 501-1194 Gifu, Japan
| | - Haruhiko Akiyama
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, 501-1194 Gifu, Japan
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10
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Nakamura Y, Ogawa H, Sohmiya K, Sengoku M, Shimokawa T, Ohnishi K, Matsumoto K, Akiyama H. Relationship between histological changes of the anterior cruciate ligament and knee function in osteoarthritis patients. Orthop Traumatol Surg Res 2022; 108:103341. [PMID: 35643361 DOI: 10.1016/j.otsr.2022.103341] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 04/06/2022] [Accepted: 04/12/2022] [Indexed: 02/03/2023]
Abstract
BACKGROUND The function of the anterior cruciate ligament (ACL) in osteoarthritis (OA) of the knee remains to be elucidated. The purpose of this study is to evaluate histological changes of the ACL in end-stage knee OA and to clarify the relationship between histological changes in the ACL and knee function. HYPOTHESIS The hypothesis in this study was that ACL degeneration in knee OA is associated with decreased knee function. PATIENTS AND METHODS Eighty-two ACL specimens from 65 patients who underwent primary total knee arthroplasty (TKA) were investigated. The correlation between histological changes of the ACL (myxoid changes, chondroid metaplasia, total collagen degeneration, microcyst formation, vascular proliferation, and inflammatory cell infiltration) and knee function (range of motion, anterior tibial translation test, knee extension muscle strength, one-leg standing time, and functional reach test) were investigated. Age, body mass index, joint space narrowing, osteophyte formation, lower extremity alignment, and knee medial/lateral instability were also evaluated. RESULTS Myxoid change in the ACLs was significantly negatively correlated with one-leg standing time. Chondroid metaplasia was not correlated with knee function. Collagen degeneration in the ACL was significantly negatively correlated with knee flexion angle and one-leg standing time. In addition, a negative correlation between microcyst formation and knee flexion angle was noted. Osteophyte formation, particularly lateral femoral intercondylar osteophytes, was correlated with myxoid changes. The other parameters did not correlate with ACL histological changes. DISCUSSION Myxoid changes in the ACL were shown to correlate with knee function. The osteophyte score, particularly as related to lateral femoral intercondylar osteophytes, correlated with the severity of myxoid changes in the ACL in knee OA. Precise ACL evaluation should be included in the indications for ACL-retaining surgeries because ACL degeneration may be related to decreased knee function after surgery. LEVEL OF EVIDENCE IV, Diagnostic case series.
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Affiliation(s)
- Yutaka Nakamura
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Hayashi-machi 6-85-1, 503-0015 Ogaki, Gifu, Japan; Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, 501-1194 Gifu, Japan
| | - Hiroyasu Ogawa
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Hayashi-machi 6-85-1, 503-0015 Ogaki, Gifu, Japan; Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, 501-1194 Gifu, Japan.
| | - Kazuki Sohmiya
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Hayashi-machi 6-85-1, 503-0015 Ogaki, Gifu, Japan
| | - Masaya Sengoku
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Hayashi-machi 6-85-1, 503-0015 Ogaki, Gifu, Japan
| | - Tetsuya Shimokawa
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Hayashi-machi 6-85-1, 503-0015 Ogaki, Gifu, Japan
| | - Kazuichiro Ohnishi
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Hayashi-machi 6-85-1, 503-0015 Ogaki, Gifu, Japan
| | - Kazu Matsumoto
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, 501-1194 Gifu, Japan
| | - Haruhiko Akiyama
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, 501-1194 Gifu, Japan
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Wu Q, Nakazato S, Yang B, Shimokawa T. A neural basis of rational inattention models: consistency of cognitive cost with the mutual information criterion. Neuroreport 2022; 33:649-655. [PMID: 36126262 PMCID: PMC9477864 DOI: 10.1097/wnr.0000000000001829] [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] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 08/07/2022] [Indexed: 12/04/2022]
Abstract
The rational inattention model has recently attracted much attention as a promising candidate to model bounded rationality in the research field of decision-making and game theory. However, in contrast to this energetic promotion of the theoretical works, empirical verification of the validity of the RI model has not progressed much. Furthermore, to our knowledge, the central assumption of the RI model, that the amount of mutual information obtained from signals adequately represents the cognitive cost of information, has not been tested from a neuroscientific perspective. The purpose of the present study was to test whether the amount of mutual information adequately represents the cognitive cost of information from a neuroscientific perspective. We proposed a sequential investment task, in which the two main models of RI can be treated simultaneously in a more realistic experimental environment. We used a model-fitting approach to analyze the subjective information cost, and compared the model parameters representing the information cost with the concentration of oxidized hemoglobin in the brain blood. Our results showed that the cost parameter λ of the stochastic choice type model, which fits the behavioral data of the present experiment better than the Kalman filter type model, was significantly positively correlated with the activation status of the rostral prefrontal cortex and dorsolateral prefrontal cortex. The cognitive cost represented by the amount of mutual information employed in the RI model is consistent with the activation of brain regions associated with cognitive cost, and, thus, indirectly supports the assumption of the RI model.
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Affiliation(s)
- Qi Wu
- Graduate School of Management, Tokyo University of
Science
| | | | - Bojian Yang
- Graduate School of Management, Tokyo University of
Science
- Sony Group Corporation, Tokyo, Japan
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12
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Ogawa H, Nakamura Y, Sengoku M, Shimokawa T, Sohmiya K, Ohnishi K, Matsumoto K, Akiyama H. Thinner tuberosity osteotomy is more resistant to axial load in medial open-wedge distal tuberosity proximal tibial osteotomy: A biomechanical study. Knee 2022; 38:62-68. [PMID: 35930894 DOI: 10.1016/j.knee.2022.07.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 06/20/2022] [Accepted: 07/18/2022] [Indexed: 02/02/2023]
Abstract
BACKGROUND The purpose of this study was to investigate axial load resistance of the tibia depending on the thickness of tibial tuberosity osteotomy in medial open-wedge distal tuberosity proximal tibial osteotomy (OWDTO). The hypothesis is that a thin tibial tuberosity osteotomy shows high axial load resistance of the tibia. METHODS The OWDTO model was constructed from imitation bones of the tibia. Distal tibial tuberosity osteotomy was performed with thicknesses of 7, 14, and 21 mm (n = 5 for each group). Cyclic axial-load fatigue tests were performed to investigate the strain at five measurement points on the OWDTO model. An axial-load failure test was also performed to investigate the maximum strain for failure. RESULTS The 7-mm OWDTO model showed a significantly lower stain range than the 14-mm model at the middle part of the lateral hinge (P = 0.0263, mean difference: -852.6 με), posterior part (P = 0.0465, mean difference: -1040.0 με), posterior tibial cortex (P < 0.0001, mean difference: -583.4 με), and plate (P = 0.0029, mean difference: -121.6 με). There were no significant differences in the strain at the tibial tuberosity between the groups. The axial load for complete failure was significantly higher in the 7-mm model than in the 21-mm model (P = 0.0010, mean difference: 2577.0 N). The failure points were at the lateral hinges. CONCLUSIONS Thinner distal tibial tuberosity osteotomy is more resistant to axial load and may be recommended for the prevention of tibial and lateral hinge fractures after OWDTO.
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Affiliation(s)
- Hiroyasu Ogawa
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Gifu, Japan; Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Ogaki, Gifu, Japan.
| | - Yutaka Nakamura
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Masaya Sengoku
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Ogaki, Gifu, Japan
| | - Tetsuya Shimokawa
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Ogaki, Gifu, Japan
| | - Kazuki Sohmiya
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Ogaki, Gifu, Japan
| | - Kazuichiro Ohnishi
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Ogaki, Gifu, Japan
| | - Kazu Matsumoto
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Haruhiko Akiyama
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Gifu, Japan
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Ogawa H, Nakamura Y, Sengoku M, Shimokawa T, Sohmiya K, Ohnishi K, Matsumoto K, Akiyama H. Medial proximal tibial angle at the posterior tibial plateau represents the pre-arthritic constitutional medial proximal tibial angle in anterior cruciate ligament-intact, advanced osteoarthritis of the knee. Knee Surg Sports Traumatol Arthrosc 2022; 30:2941-2947. [PMID: 35088097 DOI: 10.1007/s00167-022-06890-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 01/08/2022] [Indexed: 10/19/2022]
Abstract
PURPOSE In kinematically aligned total knee arthroplasty (TKA), it is necessary to infer the pre-arthritic constitutional medial proximal tibial angle (MPTA) in advanced osteoarthritis (OA) of the knee with bone loss. The aim of this study was to investigate whether MPTA at the posterior tibial plateau represents the pre-arthritic constitutional MPTA in anterior cruciate ligament (ACL)-intact, advanced OA knees. It was hypothesized that MPTA at the posterior tibial plateau represents the pre-arthritic constitutional MPTA of ACL-intact, advanced knee OA. METHODS One hundred varus, anterior cruciate ligament (ACL)-intact, advanced OA knees were analysed. The hip-knee-ankle (HKA) angle and MPTA were assessed on computed radiography (CR) and MPTAs at the anterior, middle, and posterior part of the tibial plateau were assessed on computed tomography (CT) images. The association between these parameters was also analysed. RESULTS CR images showed an HKA angle of 172.4 ± 4.1° and MPTA of 84.3 ± 2.5°. CT images showed different MPTAs in the three regions, ranging from 83.9 ± 2.4° to 85.9 ± 2.8°. The middle MPTA was the lowest at 83.9 ± 2.4°. HKA angle correlated with the middle MPTA (r = 0.3355, 95% confidence interval [CI] 0.1489-0.4991, p = 0.0006) and ΔMPTA (Middle-Posterior) (r = 0.5128, 95% CI 0.3518-0.6443, p < 0.0001). CONCLUSION The MPTA at the posterior tibial plateau represents the pre-arthritic constitutional MPTA in ACL-intact, advanced OA knees. LEVEL OF EVIDENCE III, retrospective cohort study.
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Affiliation(s)
- Hiroyasu Ogawa
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Hayashi-machi 6-85-1, Ogaki, Gifu, 503-0015, Japan. .,Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu, 501-1194, Japan.
| | - Yutaka Nakamura
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Hayashi-machi 6-85-1, Ogaki, Gifu, 503-0015, Japan
| | - Masaya Sengoku
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Hayashi-machi 6-85-1, Ogaki, Gifu, 503-0015, Japan
| | - Tetsuya Shimokawa
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Hayashi-machi 6-85-1, Ogaki, Gifu, 503-0015, Japan
| | - Kazuki Sohmiya
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Hayashi-machi 6-85-1, Ogaki, Gifu, 503-0015, Japan
| | - Kazuichiro Ohnishi
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Hayashi-machi 6-85-1, Ogaki, Gifu, 503-0015, Japan
| | - Kazu Matsumoto
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu, 501-1194, Japan
| | - Haruhiko Akiyama
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu, 501-1194, Japan
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Boku S, Satake H, Ohta T, Mitani S, Kawakami K, Matsumoto T, Yamazaki E, Hasegawa H, Ikoma T, Uemura M, Yamaguchi T, Ishizuka Y, Kurokawa Y, Sakai D, Kawakami H, Shimokawa T, Tsujinaka T, Kato T, Satoh T, Kagawa Y. 440TiP TRESBIEN (OGSG 2101): Encorafenib, binimetinib and cetuximab for early relapse stage II/III BRAF V600E-mutated CRC. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.578] [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] Open
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15
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Debnath CR, Khan MSI, Khan MSI, Nath P, Majumder LN, Monowar MS, Khan M, Islam F, Nabeka H, Shimokawa T, Matsuda S, Mahtab MA, Akbar SMF. A comprehensive design for prevention and management of COVID-19 in a tertiary medical institution in Bangladesh. J Infect Dev Ctries 2022; 16:1252-1257. [PMID: 36099367 DOI: 10.3855/jidc.13729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 03/11/2021] [Indexed: 10/31/2022] Open
Abstract
INTRODUCTION Containment of the further spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and reducing fatality due to coronavirus disease 19 (COVID-19) represent a pressing challenge to global health services. Here, we present a management blueprint for both the containment of SARS-CoV-2 and treatment of COVID-19 through a comprehensive approach. METHODOLOGY A cohort of 130 consecutive patients identified as positive for SARS-CoV-2 by testing of nasal swab by polymerase chain reaction were managed at a peripheral city of Bangladesh between 1 April and 31 May, 2020. Based on their clinical status, 64 of them were initially selected for isolation (Isolation Group) and 66 recommended for hospitalization (Hospital Group) as per the direction of the "Central COVID-19 Control" Center. Both groups of patients were allocated to receive standard of care management and oxygen inhalation, and intensive care unit management as and when necessary. Based on the conditions of the COVID-19 patients, there was an active system of patients being transferred from the "Isolation Group" to "Hospital Group" and vice versa. RESULTS Twelve patients of the "Isolation Group" were transferred to the hospital, as they exhibited symptoms of deterioration. Four patients of the "Hospital Group" died during the observation period of two months in the intensive care unit. However, there has been no fatality among the patients of the "Isolation Group". CONCLUSIONS The concept of "Isolation" and "Hospital Management" with the participation of the community seems to be an effective management strategy for COVID-19 in developing countries.
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Affiliation(s)
- Chitto Ranjan Debnath
- Department of Hepatology, Mymensingh Medical College and Hospital, Mymensingh, Bangladesh
| | - Md Saiful Islam Khan
- COVID-19 Management Team, Hospital Management and Administrative Department, Mymensingh Medical College and Hospital, Mymensingh, Bangladesh
| | - Md Sakirul Islam Khan
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | | | - Lakshmi Narayan Majumder
- COVID-19 Management Team, Hospital Management and Administrative Department, Mymensingh Medical College and Hospital, Mymensingh, Bangladesh
| | | | - Monalisa Khan
- Department of Radio Oncology, Mymensingh Medical College and Hospital, Mymensingh, Bangladesh
| | - Farzana Islam
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Hiroaki Nabeka
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Tetsuya Shimokawa
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Seiji Matsuda
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Mamun Al Mahtab
- Department of Hepatology, Bangabandhu Sheikh Mujib Medical University, Dhaka, Bangladesh
| | - Sheikh Mohammad Fazle Akbar
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan.
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Yamashita M, Shimokawa T, Tanemura R. Default mode network-associated intrinsic connectivity relates to individual learnability differences in errorless and trial-and-error learning. Appl Neuropsychol Adult 2022:1-9. [PMID: 35998649 DOI: 10.1080/23279095.2022.2111518] [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] [Indexed: 06/15/2023]
Abstract
The intrinsic functional network architecture accounts for task-evoked brain activity changes and variabilities in cognitive performance. Relationships between the intrinsic functional network architecture and task performance or learning ability have been previously reported. However, the relationships between learning benefits and the characteristics of intrinsic functional network architecture for different types of learning methods remain unclear. In this study, we used graph theoretical analysis to examine the relationships between intrinsic functional network connectivity and learning benefits in two well-known learning methods in the field of cognitive rehabilitation-errorless learning (EL learning) and trial-and-error learning (T&E learning). We focused on the default mode network (DMN) as a task-relevant network, which can differentiate between EL and T&E learning and was found to be more important for T&E learning in a previous study. Participants performed a color-name association task with both learning methods. The graph metrics used were within-network connectivity and efficiency for the DMN. Within-DMN connectivity and DMN efficiency showed a significantly weak positive correlation with T&E scores but not with EL scores. These findings show that the intrinsic integration strength within the DMN relates to individuals' learnability through the T&E method.
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Affiliation(s)
- Madoka Yamashita
- Department of Rehabilitation, Kansai Medical University, Osaka, Japan
- Department of Rehabilitation Science, Graduate School of Health Sciences Discipline, Life and Medical Sciences Area, Kobe University, Kobe, Hyogo, Japan
| | - Tetsuya Shimokawa
- Graduate School of Information Science and Technology, Osaka University, Osaka, Japan
| | - Rumi Tanemura
- Department of Rehabilitation Science, Graduate School of Health Sciences Discipline, Life and Medical Sciences Area, Kobe University, Kobe, Hyogo, Japan
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Yoshino Y, Kumon H, Shimokawa T, Yano H, Ochi S, Funahashi Y, Iga JI, Matsuda S, Tanaka J, Ueno SI. Impact of Gestational Haloperidol Exposure on miR-137-3p and Nr3c1 mRNA Expression in Hippocampus of Offspring Mice. Int J Neuropsychopharmacol 2022; 25:853-862. [PMID: 35859315 PMCID: PMC9593222 DOI: 10.1093/ijnp/pyac044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 07/11/2022] [Accepted: 07/19/2022] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Schizophrenia is a mental disorder caused by both environmental and genetic factors. Prenatal exposure to antipsychotics, an environmental factor for the fetal brain, induces apoptotic neurodegeneration and cognitive impairment of offspring similar to schizophrenia. The aim was to investigate molecular biological changes in the fetal hippocampus exposed to haloperidol (HAL) by RNA expression as a model of the disorder. METHODS HAL (1 mg/kg/d) was administered to pregnant mice. Upregulated and downregulated gene expressions in the hippocampus of offspring were studied with RNA-sequencing and validated with the qPCR method, and micro-RNA (miR) regulating mRNA expressional changes was predicted by in silico analysis. An in vitro experiment was used to identify the miRNA using a dual-luciferase assay. RESULTS There were significant gene expressional changes (1370 upregulated and 1260 downregulated genes) in the HAL group compared with the control group on RNA-sequencing analysis (P < .05 and q < 0.05). Of them, the increase of Nr3c1 mRNA expression was successfully validated, and in silico analysis predicted that microRNA-137-3p (miR-137-3p) possibly regulates that gene's expression. The expression of miR-137-3p in the hippocampus of offspring was significantly decreased in the first generation, but it increased in the second generation. In vitro experiments with Neuro2a cells showed that miR-137-3p inversely regulated Nr3c1 mRNA expression, which was upregulated in the HAL group. CONCLUSIONS These findings will be key for understanding the impact of the molecular biological effects of antipsychotics on the fetal brain.
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Affiliation(s)
- Yuta Yoshino
- Department of Neuropsychiatry, Molecules and Function, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, Japan
| | - Hiroshi Kumon
- Department of Neuropsychiatry, Molecules and Function, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, Japan
| | - Tetsuya Shimokawa
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Hajime Yano
- Department of Molecular and Cellular Physiology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Shinichiro Ochi
- Department of Neuropsychiatry, Molecules and Function, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, Japan
| | - Yu Funahashi
- Department of Neuropsychiatry, Molecules and Function, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, Japan
| | - Jun-ichi Iga
- Correspondence: Jun-ichi Iga, MD, PhD, Department of Neuropsychiatry, Molecules and Function, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime 791-0295, Japan ()
| | - Seiji Matsuda
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Junya Tanaka
- Department of Molecular and Cellular Physiology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Shu-ichi Ueno
- Department of Neuropsychiatry, Molecules and Function, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, Japan
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Honda Y, Shimokawa T, Matsuda S, Kobayashi Y, Moriya-Ito K. Hippocampal Connectivity of the Presubiculum in the Common Marmoset (Callithrix jacchus). Front Neural Circuits 2022; 16:863478. [PMID: 35860211 PMCID: PMC9289110 DOI: 10.3389/fncir.2022.863478] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 05/26/2022] [Indexed: 11/23/2022] Open
Abstract
The marmoset (a New World monkey) has recently received much attention as an experimental animal model; however, little is known about the connectivity of limbic regions, including cortical and hippocampal memory circuits, in the marmoset. Here, we investigated the neuronal connectivity of the marmoset, especially focusing on the connectivity between the hippocampal formation and the presubiculum, using retrograde and anterograde tracers (cholera toxin-B subunit and biotin dextran amine). We demonstrated the presence of a direct projection from the CA1 pyramidal cell layer to the deep layers of the presubiculum in the marmoset, which was previously identified in the rabbit brain, but not in the rat. We also found that the cells of origin of the subiculo-presubicular projections were localized in the middle part along the superficial-to-deep axis of the pyramidal cell layer of the distal subiculum in the marmoset, which was similar to that in both rats and rabbits. Our results suggest that, compared to the rat and rabbit brains, connections between the hippocampal formation and presubiculum are highly organized and characteristic in the marmoset brain.
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Affiliation(s)
- Yoshiko Honda
- Department of Anatomy and Neurobiology, School of Medicine, Tokyo Women’s Medical University, Tokyo, Japan
- *Correspondence: Yoshiko Honda,
| | - Tetsuya Shimokawa
- Division of Anatomy and Embryology, Department of Functional Biomedicine, Ehime University, Toon, Japan
| | - Seiji Matsuda
- Division of Anatomy and Embryology, Department of Functional Biomedicine, Ehime University, Toon, Japan
| | - Yasushi Kobayashi
- Department of Anatomy, National Defense Medical College, Tokorozawa, Japan
| | - Keiko Moriya-Ito
- Department of Brain Development and Neural Regeneration, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
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19
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Sugimoto N, Nakata K, Miyo M, Yoshioka S, Kagawa Y, Naito A, Tei M, Tamagawa H, Konishi K, Osawa H, Shingai T, Danno K, Nishida N, Sato G, Shimokawa T, Miyoshi N, Takahashi H, Uemura M, Yamamoto H, Murata K, Doki Y, Eguchi H. P-76 Phase II study of FOLFIRI plus ramucirumab with recurrent colorectal cancer refractory to adjuvant chemotherapy with oxaliplatin/fluoropyrimidine (RAINCLOUD). Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.04.166] [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: 11/01/2022] Open
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20
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Martínez-Rovira I, Seksek O, Bergs J, Hirayama R, Matsufuji N, Inaniwa T, Koike S, Shimokawa T, Prezado Y, Yousef I. OC-0095 Neon minibeam radiotherapy (Ne MBRT): investigating biological mechanisms with synchrotron light. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)02471-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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21
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Taniguchi S, Higashi Y, Kataoka H, Nakajima H, Shimokawa T. Functional Connectivity and Networks Underlying Complex Tool-Use Movement in Assembly Workers: An fMRI Study. Front Hum Neurosci 2021; 15:707502. [PMID: 34776900 PMCID: PMC8581229 DOI: 10.3389/fnhum.2021.707502] [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: 05/10/2021] [Accepted: 09/07/2021] [Indexed: 11/29/2022] Open
Abstract
The aim of this study was to identify the functional connectivity and networks utilized during tool-use in real assembly workers. These brain networks have not been elucidated because the use of tools in real-life settings is more complex than that in experimental environments. We evaluated task-related functional magnetic resonance imaging in 13 assembly workers (trained workers, TW) and 27 age-matched volunteers (untrained workers, UTW) during a tool-use pantomiming task, and resting-state functional connectivity was also analyzed. Two-way repeated-measures analysis of covariance was conducted with the group as a between-subject factor (TW > UTW) and condition (task > resting) as a repeated measure, controlling for assembly time and accuracy as covariates. We identified two patterns of functional connectivity in the whole brain within three networks that distinguished TW from UTW. TW had higher connectivity than UTW between the left middle temporal gyrus and right cerebellum Crus II (false discovery rate corrected p-value, p-FDR = 0.002) as well as between the left supplementary motor area and the pars triangularis of the right inferior frontal gyrus (p-FDR = 0.010). These network integrities may allow for TW to perform rapid tool-use. In contrast, UTW showed a stronger integrity compared to TW between the left paracentral lobule and right angular gyrus (p-FDR = 0.004), which may reflect a greater reliance on sensorimotor input to acquire complex tool-use ability than that of TW. Additionally, the fronto-parietal network was identified as a common network between groups. These findings support our hypothesis that assembly workers have stronger connectivity in tool-specific motor regions and the cerebellum, whereas UTW have greater involvement of sensorimotor networks during a tool-use task.
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Affiliation(s)
- Seira Taniguchi
- Center for Information and Neural Networks, Advanced ICT Research Institute, National Institute of Information and Communications Technology, Suita, Japan
| | | | | | | | - Tetsuya Shimokawa
- Center for Information and Neural Networks, Advanced ICT Research Institute, National Institute of Information and Communications Technology, Suita, Japan
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22
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Taniguchi Y, Okamoto H, Shimokawa T, Sasaki T, Sato T, Niho S, Ohe Y, Saigusa Y, Yamanaka T. P25.02 Concurrent Chemoradiotherapy With Cisplatin + S-1 for Locally Advanced Non-Small Cell Lung Cancer: IPD Meta-Analysis. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.381] [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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23
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Revankar G, Hattori N, Kajiyama Y, Shimokawa T, Nakano T, Mihara M, Mori E, Mochizuki H. Frontal cortex deficits in Parkinson's disease patients vulnerable to pareidolias. J Neurol Sci 2021. [DOI: 10.1016/j.jns.2021.119491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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24
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Miura S, Azuma K, Yoshioka H, Teraoka S, Ishii H, Koyama K, Kibata K, Ozawa Y, Tokito T, Koh Y, Shimokawa T, Kurata T, Yamamoto N, Tanaka H. MA02.05 A Phase I Study of Afatinib in Combination With Osimertinib in Patients After Failure of Prior Osimertinib. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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25
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Hara H, Yamamoto S, Kii T, Kawabata R, Kawada J, Takeno A, Matsuyama J, Ueda S, Kawakami H, Okita Y, Endo S, Kimura Y, Yanagihara K, Okuno T, Kurokawa Y, Shimokawa T, Satoh T. 1387P Randomized phase II study comparing docetaxel vs paclitaxel in patients with esophageal squamous cell carcinoma who are refractory to fluoropyrimidine and platinum-based chemotherapy: OGSG1201. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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26
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Revankar GS, Kajiyama Y, Hattori N, Shimokawa T, Nakano T, Mihara M, Mori E, Mochizuki H. Prestimulus Low-Alpha Frontal Networks Are Associated with Pareidolias in Parkinson's Disease. Brain Connect 2021; 11:772-782. [PMID: 33858200 DOI: 10.1089/brain.2020.0992] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Background: Pareidolias are visual phenomena wherein ambiguous, abstract forms or shapes appear meaningful due to incorrect perception. In Parkinson's disease (PD), patients susceptible to visual hallucinations experience visuo-perceptual deficits in the form of pareidolias. Although pareidolias necessitate top-down modulation of visual processing, the cortical dynamics of internally generated perceptual priors on these visual misperceptions is unknown. Objectives: To study prestimulus-related electroencephalography (EEG) spectral and network abnormalities in PD patients experiencing pareidolias. Methods: Twenty-one PD in-patients and 10 age-matched controls were evaluated. Neuropsychological assessments included tests for cognition, attention, and executive functions. Pareidolias were quantified by using the "noise pareidolia test" with simultaneous EEG recording. The PD patients were subdivided into two groups-those with high pareidolia counts (n = 10) and those without (n = 11). The EEG was analyzed 1000 msec before stimulus presentation in the spectral domain (theta, low-alpha, and high-alpha frequencies) with corresponding graph networks to evaluate network properties. Statistical analysis included analysis of variance and multiple regression to evaluate the differences. Results: The PD patients with high pareidolia counts were older with lower scores on neuropsychological tests. Their prestimulus EEG low-alpha band showed a tendency toward higher frontal activity (p = 0.07). Graph networks showed increased normalized clustering coefficient (p = 0.05) and lower frontal degree centrality (p = 0.005). These network indices correlated positively to patients' pareidolia scores. Discussion: We suggest that pareidolias in PD are a consequence of an abnormal top-down modulation of visual processing; they are defined by their frontal low-alpha spectral and network alterations in the prestimulus phase due to a dissonance between patients' internally generated mental processing with external stimuli. Impact statement Pareidolias in Parkinson's disease (PD) are considered to be promising early markers of visual hallucinations and an indicator of PD prognosis. In certain susceptible PD patients, pareidolias can be evoked and studied. Here, via electroencephalography, we aimed at understanding this visual phenomenon by studying how neural information is processed before stimulus presentation in such patients. Using spectral and graph network measures, we revealed how top-down modulated internally generated processes affect visual perception in patients with pareidolias. Our findings highlight how prestimulus network alterations in the frontal cortex shape poststimulus pareidolic manifestations in PD.
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Affiliation(s)
- Gajanan S Revankar
- Department of Neurology, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Yuta Kajiyama
- Department of Neurology, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Noriaki Hattori
- Department of Neurology, Graduate School of Medicine, Osaka University, Osaka, Japan.,Department of Rehabilitation, Faculty of Medicine, Academic Assembly, University of Toyama, Toyama, Japan
| | - Tetsuya Shimokawa
- Center for Information and Neural Networks (CiNet), National Institute of Information and Communications Technology (NICT), Osaka, Japan
| | - Tomohito Nakano
- Department of Neurology, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Masahito Mihara
- Department of Neurology, Graduate School of Medicine, Osaka University, Osaka, Japan.,Department of Neurology, Kawasaki Medical College, Okayama, Japan
| | - Etsuro Mori
- Department of Behavioral Neurology and Neuropsychiatry, Osaka University, Osaka, Japan
| | - Hideki Mochizuki
- Department of Neurology, Graduate School of Medicine, Osaka University, Osaka, Japan
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27
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Taniguchi M, Nabeka H, Yamamiya K, Khan MSI, Shimokawa T, Islam F, Doihara T, Wakisaka H, Kobayashi N, Hamada F, Matsuda S. The expression of prosaposin and its receptors, GRP37 and GPR37L1, are increased in the developing dorsal root ganglion. PLoS One 2021; 16:e0255958. [PMID: 34379697 PMCID: PMC8357083 DOI: 10.1371/journal.pone.0255958] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 07/27/2021] [Indexed: 11/18/2022] Open
Abstract
Prosaposin (PSAP), a highly conserved glycoprotein, is a precursor of saposins A-D. Accumulating evidence suggests that PSAP is a neurotrophic factor, as well as a regulator of lysosomal enzymes. Recently, the orphan G-protein-coupled receptors GPR37 and GPR37L1 were recognized as PSAP receptors, but their functions have not yet been clarified. In this study, we examined the distribution of PSAP and its receptors in the dorsal root ganglion (DRG) during development using specific antibodies, and showed that PSAP accumulates primarily in lysosomes and is dispersed throughout the cytoplasm of satellite cells. Later, PSAP colocalized with two receptors in satellite cells, and formed a characteristic ring shape approximately 8 weeks after birth, during a period of rapid DRG development. This ring shape, which was only observed around larger neurons, is evidence that several satellite cells are synchronously activated. We found that sortilin, a transporter of a wide variety of intracellular proteins containing PSAP, is strongly localized to the inner side of satellite cells, which contact the neuronal surface. These findings suggest that PSAP and GPR37/GPR37L1 play a role in activating both satellite and nerve cells.
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Affiliation(s)
- Miho Taniguchi
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Hiroaki Nabeka
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Kimiko Yamamiya
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Md Sakirul Islam Khan
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Tetsuya Shimokawa
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Farzana Islam
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Takuya Doihara
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Hiroyuki Wakisaka
- Department of Otorhinolaryngology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Naoto Kobayashi
- Department of Medical Education Center, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Fumihiko Hamada
- Department of Human Anatomy, Oita University Faculty of Medicine, Yufu, Oita, Japan
| | - Seiji Matsuda
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
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28
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Shimokawa T, Miyamoto K, Hioki A, Masuda T, Fushimi K, Ogawa H, Ohnishi K, Akiyama H. Compensatory Pelvic Retro-Rotation Associated with a Decreased Quality of Life in Patients with Normal Sagittal Balance. Asian Spine J 2021; 16:241-247. [PMID: 33966366 PMCID: PMC9066255 DOI: 10.31616/asj.2020.0449] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Accepted: 11/05/2020] [Indexed: 11/28/2022] Open
Abstract
Study Design Cross-sectional observational study. Purpose To examine whether pelvic rotation as a compensatory mechanism for sagittal imbalance is related to quality of life (QOL). Overview of Literature Poor sagittal alignment is associated with compensatory pelvic retroversion and decreased QOL. Whether the compensatory pelvic tilt (PT) influences QOL is unclear. Methods Overall, 134 subjects aged ≥20 years with lower back pain were included (104 females; mean age, 70±9.8 years). Sagittal vertical alignment (SVA) and PT were analyzed radiographically. Patients were stratified into three groups based on SVA values: good alignment (group G), intermediate alignment (group I), and poor sagittal alignment (group P). Patients in group I were further categorized into two groups: low PT and high PT. The Japanese Orthopaedic Association Back Pain Evaluation Questionnaire (JOABPEQ) was used for clinical assessment, and the scores were compared between groups. Results As SVA increased, PT and lumbar lordosis (LL) increased and decreased, respectively. PT and LL differed significantly between groups G and P (p<0.01 for each comparison). Within group I, there was no significant difference in SVA between the high PT and low PT groups, suggesting that the high PT group had acquired a compensated sagittal balance. Importantly, all domains in the JOABPEQ (except for lower back pain) were significantly lower in the high PT group than in the low PT group (p<0.05 for every comparison). Conclusions This study showed that focusing solely on SVA as a single indicator can cause important losses in QOL to be overlooked in patients with lumbar disorders. Although pelvic retroversion can compensate for sagittal balance, it is associated with a significant decrease in QOL. To improve the assessment of patients with lumbar disorders, PT should be considered besides SVA.
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Affiliation(s)
- Tetsuya Shimokawa
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Gifu, Japan.,Department of Orthopaedic Surgery, School of Medicine, Gifu University, Gifu, Japan
| | - Kei Miyamoto
- Department of Orthopaedic Surgery, Gifu Municipal Hospital, Gifu, Japan
| | - Akira Hioki
- Spine Center, Matsunami General Hospital, Gifu, Japan
| | | | - Kazunari Fushimi
- Department of Orthopaedic Surgery, School of Medicine, Gifu University, Gifu, Japan
| | - Hiroyasu Ogawa
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Gifu, Japan
| | - Kazuichiro Ohnishi
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Gifu, Japan
| | - Haruhiko Akiyama
- Department of Orthopaedic Surgery, School of Medicine, Gifu University, Gifu, Japan
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29
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Ninomiya R, Kubo S, Baba T, Kajiwara T, Tokunaga A, Nabeka H, Doihara T, Shimokawa T, Matsuda S, Murakami K, Aigaki T, Yamaoka Y, Hamada F. Inhibition of low-density lipoprotein uptake by Helicobacter pylori virulence factor CagA. Biochem Biophys Res Commun 2021; 556:192-198. [PMID: 33845309 DOI: 10.1016/j.bbrc.2021.03.170] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 03/30/2021] [Indexed: 01/01/2023]
Abstract
Helicobacter pylori (H. pylori) infection mainly causes gastroduodenal diseases, including chronic gastritis, peptic ulcer disease and gastric cancer. In recent years, several studies have demonstrated that infection with H. pylori, especially strains harboring the virulence factor CagA (cytotoxin-associated gene A), contribute to the development of non-gastric systemic diseases, including hypercholesterolemia and atherosclerotic cardiovascular diseases. However, mechanisms underlying this association has not been defined. In this study, we carried out a large-scale genetic screen using Drosophila and identified a novel CagA target low-density lipoprotein receptor (LDLR), which aids in the clearance of circulating LDL. We showed that CagA physically interacted with LDLR via its carboxy-terminal region and inhibited LDLR-mediated LDL uptake into cells. Since deficiency of LDLR-mediated LDL uptake has been known to increase plasma LDL and accelerate atherosclerosis, our findings may provide a novel mechanism for the association between infection with CagA-positive H. pylori and hypercholesterolemia leading to atherosclerotic cardiovascular diseases.
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Affiliation(s)
- Ryo Ninomiya
- Department of Anatomy, Faculty of Medicine, Oita University, Yufu, Oita, 879-5593, Japan
| | - Shuichi Kubo
- Department of Anatomy, Faculty of Medicine, Oita University, Yufu, Oita, 879-5593, Japan
| | - Takehiro Baba
- Department of Anatomy, Faculty of Medicine, Oita University, Yufu, Oita, 879-5593, Japan
| | - Tooru Kajiwara
- Department of Anatomy, Faculty of Medicine, Oita University, Yufu, Oita, 879-5593, Japan
| | - Akinori Tokunaga
- Division of Laboratory Animal Resources, Life Science Research Laboratory, University of Fukui, Eiheiji, Fukui, 910-1193, Japan
| | - Hiroaki Nabeka
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon, Ehime, 791-0295, Japan
| | - Takuya Doihara
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon, Ehime, 791-0295, Japan
| | - Tetsuya Shimokawa
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon, Ehime, 791-0295, Japan
| | - Seiji Matsuda
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon, Ehime, 791-0295, Japan
| | - Kazunari Murakami
- Department of Gastroenterology, Faculty of Medicine, Oita University, Yufu, Oita, 879-5593, Japan
| | - Toshiro Aigaki
- Department of Biological Sciences, Tokyo Metropolitan University, Hachioji, Tokyo, 192-0397, Japan
| | - Yoshio Yamaoka
- Department of Environmental and Preventive Medicine, Faculty of Medicine, Oita University, Yufu, Oita, 879-5593, Japan; Department of Gastroenterology and Hepatology, Baylor College of Medicine and Michael DeBakey Veterans Affairs Medical Center, Houston, TX, 77030-4211, USA
| | - Fumihiko Hamada
- Department of Anatomy, Faculty of Medicine, Oita University, Yufu, Oita, 879-5593, Japan.
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30
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Khoo HM, Fujita Y, Tani N, Shimokawa T, Zazubovits N, Oshino S, Gotman J, Kishima H. Reliable Acquisition of Electroencephalography Data during Simultaneous Electroencephalography and Functional MRI. J Vis Exp 2021. [PMID: 33818571 DOI: 10.3791/62247] [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: 10/31/2022] Open
Abstract
Simultaneous electroencephalography (EEG) and functional magnetic resonance imaging (fMRI), EEG-fMRI, combines the complementary properties of scalp EEG (good temporal resolution) and fMRI (good spatial resolution) to measure neuronal activity during an electrographic event, through hemodynamic responses known as blood-oxygen-level-dependent (BOLD) changes. It is a non-invasive research tool that is utilized in neuroscience research and is highly beneficial to the clinical community, especially for the management of neurological diseases, provided that proper equipment and protocols are administered during data acquisition. Although recording EEG-fMRI is apparently straightforward, the correct preparation, especially in placing and securing the electrodes, is not only important for safety but is also critical in ensuring the reliability and analyzability of the EEG data obtained. This is also the most experience-demanding part of the preparation. To address these issues, a straightforward protocol that ensures data quality was developed. This article provides a step-by-step guide for acquiring reliable EEG data during EEG-fMRI using this protocol that utilizes readily available medical products. The presented protocol can be adapted to different applications of EEG-fMRI in research and clinical settings, and may be beneficial to both inexperienced and expert operators.
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Affiliation(s)
- Hui Ming Khoo
- Department of Neurosurgery, Osaka University Graduate School of Medicine;
| | - Yuya Fujita
- Department of Neurosurgery, Osaka University Graduate School of Medicine
| | - Naoki Tani
- Department of Neurosurgery, Osaka University Graduate School of Medicine
| | - Tetsuya Shimokawa
- Center for Information and Neural Networks, National Institute of Information and Communications Technology
| | | | - Satoru Oshino
- Department of Neurosurgery, Osaka University Graduate School of Medicine
| | - Jean Gotman
- Montreal Neurological Institute and Hospital, McGill University
| | - Haruhiko Kishima
- Department of Neurosurgery, Osaka University Graduate School of Medicine
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31
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Miyazaki K, Hirasawa Y, Aga M, Aiko N, Hamakawa Y, Taniguti Y, Misumi Y, Agemi Y, Ishii M, Shimokawa T, Okamoto H. P33.08 Granulocyte Colony-Stimulating Factor-Producing Lung Cancer With Highly Expresses PD-L1 Protein Expression Level. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.677] [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: 10/21/2022]
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32
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Khan MSI, Nabeka H, Akbar SMF, Al Mahtab M, Shimokawa T, Islam F, Matsuda S. Risk of congenital birth defects during COVID-19 pandemic: Draw attention to the physicians and policymakers. J Glob Health 2020; 10:020378. [PMID: 33274057 PMCID: PMC7690649 DOI: 10.7189/jogh.10.020378] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Affiliation(s)
- Md Sakirul Islam Khan
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Hiroaki Nabeka
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Sheikh Mohammad Fazle Akbar
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Mamun Al Mahtab
- Department of Hepatology, Bangabandhu Sheikh Mujib Medical University, Dhaka, Bangladesh
| | - Tetsuya Shimokawa
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Farzana Islam
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Seiji Matsuda
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
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33
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Ogawa H, Matsumoto K, Sengoku M, Yoshioka H, Yamamoto K, Shimokawa T, Ohnishi K, Akiyama H. Clinical course and outcomes of simultaneous-versus staged-bilateral medial opening wedge high tibial osteotomy. Asia Pac J Sports Med Arthrosc Rehabil Technol 2020; 23:13-17. [PMID: 33344173 PMCID: PMC7725662 DOI: 10.1016/j.asmart.2020.11.003] [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] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 11/12/2020] [Accepted: 11/26/2020] [Indexed: 11/08/2022]
Abstract
Background Difference in the clinical course and outcomes between simultaneous- and staged-bilateral medial opening wedge high tibial osteotomies (OWHTOs) over time was unknown. The study hypothesis was that patients who underwent simultaneous-bilateral OWHTO (SMBO) have a more rapid improvement in knee function than those who underwent staged-bilateral OWHTO (STBO) due to difference in the change of lower limb alignment between SMBO and STBO. Methods The records of 56 knees in 28 patients who underwent either SMBO (n = 28) or STBO (n = 28) were retrospectively analysed. The time course data of weight-bearing line percentage (%WBL), joint line convergence angle (JLCA), and Knee Society Score were compared between the two procedures. Results Hospitalisation for SMBO was longer than that for STBO by 1 week. No significant difference was observed in %WBL between the two procedures. The JLCA was significantly lower with SMBO than with the first-stage surgery of STBO (P < 0.05), but it became equivalent in both groups at the last follow-up. The knee scores in both SMBO and the first-stage surgery of STBO significantly improved in approximately 1 year. The function scores in the first-stage surgery of STBO did not significantly improve until the completion of the second-stage surgery whereas those in SMBO significantly improved 1 year after surgery and become stable. The function score 1 year after surgery was significantly higher in SMBO than in the first-stage surgery of STBO (p < 0.001). Conclusions Although both SMBO and STBO achieved the desired therapeutic results, SMBO led to earlier functional improvement and decreased JLCA compared with STBO.
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Affiliation(s)
- Hiroyasu Ogawa
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital. Hayashi-machi 6-85-1, Ogaki, 503-0015, Japan.,Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine. Yanagido 1-1, Gifu, 501-1194, Japan
| | - Kazu Matsumoto
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine. Yanagido 1-1, Gifu, 501-1194, Japan
| | - Masaya Sengoku
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital. Hayashi-machi 6-85-1, Ogaki, 503-0015, Japan
| | - Hiroki Yoshioka
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine. Yanagido 1-1, Gifu, 501-1194, Japan
| | - Kyosuke Yamamoto
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital. Hayashi-machi 6-85-1, Ogaki, 503-0015, Japan
| | - Tetsuya Shimokawa
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital. Hayashi-machi 6-85-1, Ogaki, 503-0015, Japan
| | - Kazuichiro Ohnishi
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital. Hayashi-machi 6-85-1, Ogaki, 503-0015, Japan
| | - Haruhiko Akiyama
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine. Yanagido 1-1, Gifu, 501-1194, Japan
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Yamashita M, Shimokawa T, Takahashi S, Yamada S, Terada M, Ukai S, Tanemura R. Cognitive functions relating to aberrant interactions between task-positive and task-negative networks: Resting fMRI study of patients with schizophrenia. Appl Neuropsychol Adult 2020; 29:1122-1130. [PMID: 33280403 DOI: 10.1080/23279095.2020.1852565] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Brain functional connectivity in the resting-state represents intrinsic functional states and correlates with cognitive performance. In patients with schizophrenia, reports on the relationships between forms of functional disconnectivity in local areas and cognitive disability have used resting-state functional magnetic resonance imaging data. Meanwhile, cognitive deficits in relation to inter-network forms of functional connectivity on a large scale are not well understood. This study examines cognitive functions in relation to the number of resting-state inter-network forms of functional connectivity focusing on task-positive networks (fronto-parietal network [FPN] and cingulo-opercular network [CON]) and task-negative network (default mode network [DMN]). We compare patients with schizophrenia (SCH group) and healthy controls (HC group). We conducted a functional network analysis by applying graph theory and evaluated cognitive functions using the Brief Assessment of Cognition in Schizophrenia. The number of forms of functional connectivity between FPN and DMN and between CON and DMN were significantly higher in SCH group than in HC group, and those in SCH group were also weakly correlated with their attention scores. It is suggested that fewer than typical functional segregations between task-positive and task-negative networks in SCH group relate to inefficient distribution of cognitive resources and low attentional abilities.
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Affiliation(s)
- Madoka Yamashita
- Department of Rehabilitation Science, Graduate School of Health Sciences, Life and Medical Sciences Area, Kobe University, Hyogo, Japan.,Center for Information and Neural Networks (CiNet), National Institute of Information and Communications Technology (NICT), Osaka University, Osaka, Japan.,Department of Rehabilitation, Asakayama General Hospital, Osaka, Japan
| | - Tetsuya Shimokawa
- Department of Rehabilitation Science, Graduate School of Health Sciences, Life and Medical Sciences Area, Kobe University, Hyogo, Japan.,Center for Information and Neural Networks (CiNet), National Institute of Information and Communications Technology (NICT), Osaka University, Osaka, Japan
| | - Shun Takahashi
- Department of Neuropsychiatry, Wakayama Medical University, Wakayama, Japan
| | - Shinichi Yamada
- Department of Neuropsychiatry, Wakayama Medical University, Wakayama, Japan
| | | | - Satoshi Ukai
- Department of Neuropsychiatry, Wakayama Medical University, Wakayama, Japan
| | - Rumi Tanemura
- Department of Rehabilitation Science, Graduate School of Health Sciences, Life and Medical Sciences Area, Kobe University, Hyogo, Japan
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Kunihiro J, Nabeka H, Wakisaka H, Unuma K, Khan MSI, Shimokawa T, Islam F, Doihara T, Yamamiya K, Saito S, Hamada F, Matsuda S. Prosaposin and its receptors GRP37 and GPR37L1 show increased immunoreactivity in the facial nucleus following facial nerve transection. PLoS One 2020; 15:e0241315. [PMID: 33259479 PMCID: PMC7707515 DOI: 10.1371/journal.pone.0241315] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 10/13/2020] [Indexed: 12/21/2022] Open
Abstract
Neurotrophic factor prosaposin (PS) is a precursor for saposins A, B, C, and D, which are activators for specific sphingolipid hydrolases in lysosomes. Both saposins and PS are widely contained in various tissues. The brain, skeletal muscle, and heart cells predominantly contain unprocessed PS rather than saposins. PS and PS-derived peptides stimulate neuritogenesis and increase choline acetyltransferase activity in neuroblastoma cells and prevent programmed cell death in neurons. We previously detected increases in PS immunoactivity and its mRNA in the rat facial nucleus following facial nerve transection. PS mRNA expression increased not only in facial motoneurons, but also in microglia during facial nerve regeneration. In the present study, we examined the changes in immunoreactivity of the PS receptors GPR37 and GPR37L1 in the rat facial nucleus following facial nerve transection. Following facial nerve transection, many small Iba1- and glial fibrillary acidic protein (GFAP)-positive cells with strong GPR37L1 immunoreactivity, including microglia and astrocytes, were observed predominately on the operated side. These results indicate that GPR37 mainly works in neurons, whereas GPR37L1 is predominant in microglia or astrocytes, and suggest that increased PS in damaged neurons stimulates microglia or astrocytes via PS receptor GPR37L1 to produce neurotrophic factors for neuronal recovery.
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Affiliation(s)
- Joji Kunihiro
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Hiroaki Nabeka
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
- * E-mail:
| | - Hiroyuki Wakisaka
- Department of Otorhinolaryngology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Kana Unuma
- Section of Forensic Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Bunkyo, Tokyo, Japan
| | - Md. Sakirul Islam Khan
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Tetsuya Shimokawa
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Farzana Islam
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Takuya Doihara
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Kimiko Yamamiya
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Shouichiro Saito
- Laboratory of Veterinary Anatomy, Faculty of Applied Biological Sciences, Gifu University, Yanagido, Gifu, Japan
| | - Fumihiko Hamada
- Department of Human Anatomy, Oita University Faculty of Medicine, Yufu, Oita, Japan
| | - Seiji Matsuda
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
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Shimokawa T, Nabeka H, Khan SI, Yamamiya K, Doihara T, Kobayashi N, Wakisaka H, Matsuda S. Prosaposin in the rat oviductal epithelial cells. Cell Tissue Res 2020; 383:1191-1202. [PMID: 33242172 DOI: 10.1007/s00441-020-03339-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 11/05/2020] [Indexed: 10/22/2022]
Abstract
Prosaposin (PSAP) has two forms: a precursor and a secreted form. The secreted form has neurotrophic, myelinotrophic, and myotrophic properties. The precursor form is a precursor protein of saposins A-D. Although the distribution of PSAP in male reproductive organs is well known, its distribution in female reproductive organs, especially in the oviduct, is unclear. Immunoblots and immunohistochemistry of oviducts showed that oviductal tissues contain PSAP proteins, and a significant increase in PSAP was observed in the estrus-metestrus phase compared to the diestrus-proestrus phase in the ampulla. To identify PSAP trafficking in cells, double-immunostaining was performed with antibodies against PSAP in combination with sortilin, mannose 6 phosphate receptor (M6PR), or low-density lipoprotein receptor-related protein 1 (LRP1). PSAP and sortilin double-positive reactions were observed near the nuclei, as well as in the apical portion of microvillous epithelial cells, whereas these reactions were only observed near the nuclei of ciliated epithelial cells. PSAP and M6PR double-positive reactions were observed near the nuclei of microvillous and ciliated epithelial cells. PSAP and M6PR double-positive reactions were also observed in the apical portion of microvillous epithelial cells. PSAP and LRP1 double-positive reactions were observed in the plasma membrane and apical portion of both microvillous and ciliated epithelial cells. Immunoelectron staining revealed PSAP immunoreactive small vesicles with exocytotic features at the apical portion of microvillous epithelial cells. These findings suggest that PSAP is present in the oviductal epithelium and has a pivotal role during pregnancy in providing an optimal environment for gametes and/or sperm in the ampulla.
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Affiliation(s)
- Tetsuya Shimokawa
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, 791-0212, Japan.
| | - Hiroaki Nabeka
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, 791-0212, Japan
| | - Sakirul Islam Khan
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, 791-0212, Japan
| | - Kimiko Yamamiya
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, 791-0212, Japan
| | - Takuya Doihara
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, 791-0212, Japan
| | - Naoto Kobayashi
- Medical Education Center, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, Japan
| | - Hiroyuki Wakisaka
- Department of Liberal Arts, Ehime Prefectural University of Health Sciences, 543 Takaoda, Tobe, Ehime, 791-2101, Japan
| | - Seiji Matsuda
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, 791-0212, Japan
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Takahashi T, Yoshino H, Akutsu K, Shimokawa T, Ogino H, Kunihara T, Usui M, Watanabe K, Kawata M, Masuhara H, Yamasaki M, Hagiya K, Yamamoto T, Nagao K, Takayama M. Sex-related differences in clinical features and in-hospital outcomes of acute aortic dissection type b. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Acute aortic dissection (AAD) is a life-threatening medical condition with high morbidity and mortality. The association between female sex and poorer outcomes following surgery for AAD type A has been reported; however, the sex-related differences in clinical features and in-hospital outcomes of AAD type B remain to be elucidated.
Methods
We studied a total of 1877 patients with AAD type B who were enrolled in the Tokyo Acute Aortic Super-network from January 2013 to December 2016. Clinical features and in-hospital outcomes were compared between sexes. Independent predictors of in-hospital mortality were assessed using a multivariable analysis.
Results
The mean age of the patients was 69±13 years and 549 (29%) were females. Female patients were older than males (74±13 years vs 67±13 years; p<0.001). Females had lower systolic blood pressure on admission (158±37 mmHg vs 164±38 mmHg; p=0.007) and were more likely to have altered consciousness level at presentation (8.7% vs 3.9%; p<0.001), intramural hematoma (IMH)-type AAD (62.7% vs 53.6%; p<0.001), and DeBakey type IIIa (28.4% vs 21.8%; p=0.002) compared with males. Females were treated with medical therapy alone more frequently (90.3% vs 85.9%; p=0.009) and had a higher in-hospital mortality rate (5.3% vs 2.6%; p=0.036). A multivariable analysis revealed that age [per year, odds ratio (OR) 1.06; 95% CI 1.04–1.09; p<0.001], altered consciousness level (OR 3.28; 95% CI 1.54–6.98; p=0.002), shock/hypotension (OR 14.0; 95% CI 5.92–33.1; p<0.001), classic-type AAD (OR 2.54; 95% CI 1.36–4.73; p=0.003), and medical therapy alone (OR 0.28; 95% CI 0.15–0.54; p<0.001) were independent predictors of in-hospital mortality, whereas female sex was not predictive of in-hospital mortality (OR 1.64; 95% CI 0.91–2.96; p=0.10).
Conclusion
In AAD type B, females were older and had altered consciousness level, IMH-type, and a less widespread dissection more frequently than males. The overall in-hospital mortality was higher in females; however, female sex was not associated with in-hospital mortality after multivariable adjustment.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
| | | | | | | | - H Ogino
- Tokyo CCU Network, Tokyo, Japan
| | | | - M Usui
- Tokyo CCU Network, Tokyo, Japan
| | | | | | | | | | | | | | - K Nagao
- Tokyo CCU Network, Tokyo, Japan
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Watanabe K, Yoshino H, Takahashi T, Usui M, Akutsu K, Shimokawa T, Kunihara T, Kawata M, Masuhara H, Ogino H, Yamasaki M, Hagiya K, Yamamoto T, Nagao K, Takayama M. Diagnostic markers for discriminating between acute aortic dissection and acute myocardial infarction during the pre-hospital phase: analysis of 3,195 cases. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Both acute aortic dissection (AAD) and acute myocardial infarction (AMI) present with chest pain and are life-threatening diseases that require early diagnosis and treatment for better clinical outcome. However, two critical diseases in the very acute phase are sometimes difficult to differentiate, especially prior to arrival at the hospital for urgent diagnosis and selection of specific treatment.
The aim of our study was to clarify the diagnostic markers acquired from the information gathered from medical history taking and physical examination for discriminating AAD from AMI by using data from the Tokyo Cardiovascular Care Unit (CCU) Network database.
We examined the clinical features and laboratory data of patients with AAD and AMI who were admitted to the hospital in Tokyo between January 2013 and December 2015 by using the Tokyo CCU Network database. The Tokyo CCU Network consists of >60 hospitals that fulfil certain clinical criteria and receive patients from ambulance units coordinated by the Tokyo Fire Department. Of 15,061 patients diagnosed as having AAD and AMI, 3,195 with chest pain within 2 hours after symptom onset (537 AAD and 2,658 AMI) were examined. The patients with out-of-hospital cardiac arrest were excluded.
We compared the clinical data of the patients with chest pain who were diagnosed as having AAD and AMI. The following indicators were more frequent or had higher values among those with AAD: female sex (38% vs. 20%, P<0.001), systolic blood pressures (SBPs) at the time of first contact by the emergency crew (142 mmHg vs. 127 mmHg), back pain in addition to chest pain (54% vs. 5%, P<0.001), history of hypertension (73% vs. 58%, P<0.001), SBP ≥150 mmHg (39% vs. 22%, P<0.001), back pain combined with SBP ≥150 mmHg (23% vs. 0.8%, P<0.001), and back pain with SBP <90 mmHg (4.5% vs. 0.1%, P<0.001). The following data were less frequently observed among those with AAD: diabetes mellitus (7% vs. 28%, P<0.001), dyslipidaemia (17% vs. 42%, P<0.001), and history of smoking (48% vs. 61%, P<0.001). The multivariate regression analysis suggested that back pain with SBP ≥150 mmHg (odds ratio [OR] 47; 95% confidence interval [CI] 28–77; P<0.001), back pain with SBP <90 mmHg (OR 68, 95% CI 16–297, P<0.001), and history of smoking (OR 0.49, 95% CI 0.38–0.63, P<0.001) were the independent markers of AAD. The sensitivity and specificity of back pain with SBPs of ≥150 mmHg and back pain with SBPs <90 mmHg for detecting AAD were 23% and 99%, and 4% and 99%, respectively.
In patients with chest pain suspicious of AAD and AMI, “back pain accompanied by chest pain with SBP ≥150 mmHg” or “back pain accompanied by chest pain with SBP <90 mmH” is a reliable diagnostic marker of AAD with high specificity, although the sensitivity was low. The two SBP values with back pain are markers that may be useful for the ambulance crew at their first contact with patients with chest pain.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- K Watanabe
- Nihon University, Tokyo CCU Network, Tokyo, Japan
| | | | | | - M Usui
- Tokyo CCU Network, Tokyo, Japan
| | | | | | | | | | | | - H Ogino
- Tokyo CCU Network, Tokyo, Japan
| | | | | | | | - K Nagao
- Tokyo CCU Network, Tokyo, Japan
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Amino M, Kabuki S, Kunieda E, Sakai T, Sakama S, Ayabe K, Yagishita A, Shimokawa T, Yamazaki M, Ikari Y, Kodama I, Yoshioka K. Basic mechanism of atrial and ventricular arrhythmia suppression by heavy ion irradiation in hypercholesterolemic elderly rabbits. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Recent development of electrophysiology-guided noninvasive cardiac radioablation therapy for ventricular tachycardia attracts a great deal of attention as a novel antiarrhythmic strategy (Robinson CG, Circulation 2019). As to underlying mechanisms, however, much remains to be clarified. We reported before that a single targeted heavy ion irradiation (THIR 15Gy) to rabbit hearts increased connexin43 (Cx43) expression, and a reduction of vulnerability to ventricular arrhythmias after myocardial infarction.
Purpose
We investigated the effects of THIR on in-vivo cardiac electrophysiology and vulnerability to atrial and ventricular tachyarrhythmias in aged rabbits with hypercholesterolemia.
Methods
Sixteen three-year old rabbits were fed with high fat/cholesterol chow (0.5% cholesterol and 10% coconut oil) for 14 weeks. A single THIR 15Gy was applied to 8 rabbits (HC+THIR) with a heavy ion medical accelerator. Eight rabbits without THIR were used as control (HC).
Results
Serum cholesterol levels in the HC and HC+THIR were 1545+386 and 1569+328 mg/dl (n=8, NS). Atrial (P-wave) late potential in signal-averaged ECG in HC+THIR showed a significantly larger root mean square voltage (RMS) than those in HC (12+0.5 vs. 2+0.5μV, n=4, p<0.01). Ventricular late potentials in HC+THIR showed significantly less fQRS-D than HC (81+5 vs. 89+7 ms); less LAS40 (21+7 vs. 30+4 ms), and larger RMS (99+27 vs. 44+13μV) (n=4, p<0.04). Atrial tachycardia or fibrillation (AT/AF) was induced spontaneously or by programmed/burst pacing of the left atria (LA) in 4 out of 4 HC, whereas in only 1 out of 4 HC+THIR. Ventricular tachycardia or fibrillation (VT/VF) was induced spontaneously or by programmed pacing or left stellate stimulation in 4 out of 4 HC rabbits, whereas in only 1 out of 4 HC+THIR. Immunolabeled Cx40 densities in LA and RA tissue from HC+THIR rabbits were significantly higher than those from HC rabbits by 44% and 60%, respectively (n=4, p<0.01). Comparable upregulation of immunoreactive Cx43 was observed in LV and RV tissue from HC+THIR rabbits. Sympathetic nerve densities in LA, RA, LV and RV tissues, which was labeled with anti-neuronal growth-associated protein 43 (GAP43) antibody and tyrosine hydroxylase (TH) antibody were both significantly less in HC+THIR than those in HC.
Conclusion
These results suggest that THIR may improve cardiac conductivity of HC rabbits in favor of reduction of vulnerability to atrial and ventricular tachycardia/fibrillation, and that this antiarrhythmic effect is attributed to upregulation of gap junction protein (Cx40 and Cx43) and in part to prevention of sympathetic nerve sprouting.
Funding Acknowledgement
Type of funding source: Public grant(s) – National budget only. Main funding source(s): KAKENHI KIBAN (C) 53020
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Affiliation(s)
- M Amino
- Tokai University Hospital, Isehara, Japan
| | - S Kabuki
- Tokai University Hospital, Isehara, Japan
| | - E Kunieda
- Tokai University Hospital, Isehara, Japan
| | - T Sakai
- Tokai University Hospital, Isehara, Japan
| | - S Sakama
- Tokai University Hospital, Isehara, Japan
| | - K Ayabe
- Tokai University Hospital, Isehara, Japan
| | | | - T Shimokawa
- National Institutes for Quantum and Radiological Science and Technology, Chiba, Japan
| | - M Yamazaki
- University of Tokyo, Medical Device Development and Regulation Research Center, Tokyo, Japan
| | - Y Ikari
- Tokai University Hospital, Isehara, Japan
| | - I Kodama
- Nagoya University, Nagoya, Japan
| | - K Yoshioka
- Tokai University Hospital, Isehara, Japan
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Takahashi M, Shimokawa T, Ko J, Takeshima T, Yamashita H, Kajimoto Y, Mori A, Ito H. Efficacy and safety of istradefylline in Parkinson's disease patients with postural abnormality: results from a multicenter open-label study in Japan. Parkinsonism Relat Disord 2020. [DOI: 10.1016/j.parkreldis.2020.06.229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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41
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Yamashita M, Shimokawa T, Peper F, Tanemura R. Functional network activity during errorless and trial-and-error color-name association learning. Brain Behav 2020; 10:e01723. [PMID: 32558312 PMCID: PMC7428483 DOI: 10.1002/brb3.1723] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 05/15/2020] [Accepted: 05/24/2020] [Indexed: 11/16/2022] Open
Abstract
INTRODUCTION In cognitive rehabilitation, errorless (EL) and trial-and-error (T&E) learning are well-known methods, but their neural mechanisms are not well known. In this study, we investigated functional magnetic resonance imaging data for healthy adults during EL and T&E learning. METHODS Participants memorized color-name associations in both methods using Japanese traditional colors which were unfamiliar to study participants. A functional network analysis was conducted by applying graph theory. We focused on two major cognitive networks: the default mode network (DMN) and the fronto-parietal network (FPN). Also, we used "within-network connectivity" and "between-network connectivity" graph metrics. The former represents the functional connectivity strength of a subnetwork, namely the within-DMN connectivity and within-FPN connectivity, while the latter represents the number of links between the DMN and FPN. RESULTS The within-DMN connectivity in T&E learning was significantly higher than in EL learning. The difference between the memory scores of EL and T&E learning weakly correlated with the between-network connectivity differences between both learning tasks. CONCLUSIONS Our results suggest that within-DMN connectivity is important in T&E learning and that the learning benefit differences between EL and T&E approaches potentially relate to the functional integration strength between the DMN and FPN.
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Affiliation(s)
- Madoka Yamashita
- Department of Rehabilitation Science, Graduate School of Health Sciences Discipline, Life and Medical Sciences Area, Kobe University, Kobe, Japan.,Center for Information and Neural Networks (CiNet), National Institute of Information and Communications Technology (NICT), Osaka University, Suita, Japan.,Rehabilitation Department, Asakayama General Hospital, Sakai, Japan
| | - Tetsuya Shimokawa
- Department of Rehabilitation Science, Graduate School of Health Sciences Discipline, Life and Medical Sciences Area, Kobe University, Kobe, Japan.,Center for Information and Neural Networks (CiNet), National Institute of Information and Communications Technology (NICT), Osaka University, Suita, Japan
| | - Ferdinand Peper
- Department of Rehabilitation Science, Graduate School of Health Sciences Discipline, Life and Medical Sciences Area, Kobe University, Kobe, Japan.,Center for Information and Neural Networks (CiNet), National Institute of Information and Communications Technology (NICT), Osaka University, Suita, Japan
| | - Rumi Tanemura
- Department of Rehabilitation Science, Graduate School of Health Sciences Discipline, Life and Medical Sciences Area, Kobe University, Kobe, Japan
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42
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Shimokawa T. [(3)Graph Theory]. No Shinkei Geka 2020; 48:275-282. [PMID: 32201397 DOI: 10.11477/mf.1436204174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Affiliation(s)
- Tetsuya Shimokawa
- Neural Information Engineering Laboratory, Center for Information and Neural Networks, National Institute of Information and Communications Technology
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Nemoto K, Shimokawa T, Fukunaga M, Yamashita F, Tamura M, Yamamori H, Yasuda Y, Azechi H, Kudo N, Watanabe Y, Kido M, Takahashi T, Koike S, Okada N, Hirano Y, Onitsuka T, Yamasue H, Suzuki M, Kasai K, Hashimoto R, Arai T. Differentiation of schizophrenia using structural MRI with consideration of scanner differences: A real-world multisite study. Psychiatry Clin Neurosci 2020; 74:56-63. [PMID: 31587444 PMCID: PMC6972978 DOI: 10.1111/pcn.12934] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [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: 04/02/2019] [Revised: 09/07/2019] [Accepted: 09/13/2019] [Indexed: 12/18/2022]
Abstract
AIM Neuroimaging studies have revealed that patients with schizophrenia exhibit reduced gray matter volume in various regions. With these findings, various studies have indicated that structural MRI can be useful for the diagnosis of schizophrenia. However, multisite studies are limited. Here, we evaluated a simple model that could be used to differentiate schizophrenia from control subjects considering MRI scanner differences employing voxel-based morphometry. METHODS Subjects were 541 patients with schizophrenia and 1252 healthy volunteers. Among them, 95 patients and 95 controls (Dataset A) were used for the generation of regions of interest (ROI), and the rest (Dataset B) were used to evaluate our method. The two datasets were comprised of different subjects. Three-dimensional T1-weighted MRI scans were taken for all subjects and gray-matter images were extracted. To differentiate schizophrenia, we generated ROI for schizophrenia from Dataset A. Then, we determined volume within the ROI for each subject from Dataset B. Using the extracted volume data, we calculated a differentiation feature considering age, sex, and intracranial volume for each MRI scanner. Receiver-operator curve analyses were performed to evaluate the differentiation feature. RESULTS The area under the curve ranged from 0.74 to 0.84, with accuracy from 69% to 76%. Receiver-operator curve analysis with all samples revealed an area under the curve of 0.76 and an accuracy of 73%. CONCLUSION We moderately successfully differentiated schizophrenia from control using structural MRI from differing scanners from multiple sites. This could be useful for applying neuroimaging techniques to clinical settings for the accurate diagnosis of schizophrenia.
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Affiliation(s)
- Kiyotaka Nemoto
- Department of Psychiatry, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Tetsuya Shimokawa
- Center for Information and Neural Networks, National Institute of Information and Communications Technology, Osaka, Japan
| | - Masaki Fukunaga
- Division of Cerebral Integration, National Institute for Physiological Sciences, Aichi, Japan
| | - Fumio Yamashita
- Division of Ultrahigh Field MRI, Institute for Biomedical Sciences, Iwate Medical University, Iwate, Japan
| | - Masashi Tamura
- Department of Psychiatry, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Hidenaga Yamamori
- Department of Pathology of Mental Diseases, National Center of Neurology and Psychiatry, National Institute of Mental Health, Tokyo, Japan.,Japan Community Health Care Organization, Osaka Hospital, Osaka, Japan.,Department of Psychiatry, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Yuka Yasuda
- Department of Pathology of Mental Diseases, National Center of Neurology and Psychiatry, National Institute of Mental Health, Tokyo, Japan.,Life Grow Brilliant Mental Clinic, Osaka, Japan
| | - Hirotsugu Azechi
- Department of Pathology of Mental Diseases, National Center of Neurology and Psychiatry, National Institute of Mental Health, Tokyo, Japan
| | - Noriko Kudo
- Department of Pathology of Mental Diseases, National Center of Neurology and Psychiatry, National Institute of Mental Health, Tokyo, Japan
| | - Yoshiyuki Watanabe
- Department of Future Diagnostic Radiology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Mikio Kido
- Department of Neuropsychiatry, University of Toyama Graduate School of Medicine and Pharmaceutical Sciences, Toyama, Japan
| | - Tsutomu Takahashi
- Department of Neuropsychiatry, University of Toyama Graduate School of Medicine and Pharmaceutical Sciences, Toyama, Japan
| | - Shinsuke Koike
- University of Tokyo Institute for Diversity & Adaptation of Human Mind (UTIDAHM), Tokyo, Japan.,Center for Evolutionary Cognitive Sciences, Graduate School of Arts and Sciences, The University of Tokyo, Tokyo, Japan.,The International Research Center for Neurointelligence (WPI-IRCN), The University of Tokyo Institutes for Advanced Study (UTIAS), Tokyo, Japan.,UTokyo Center for Integrative Science of Human Behavior (CiSHuB), The University of Tokyo, Tokyo, Japan
| | - Naohiro Okada
- The International Research Center for Neurointelligence (WPI-IRCN), The University of Tokyo Institutes for Advanced Study (UTIAS), Tokyo, Japan.,Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yoji Hirano
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Toshiaki Onitsuka
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hidenori Yamasue
- Department of Psychiatry, Hamamatsu University School of Medicine, Shizuoka, Japan
| | - Michio Suzuki
- Department of Neuropsychiatry, University of Toyama Graduate School of Medicine and Pharmaceutical Sciences, Toyama, Japan
| | - Kiyoto Kasai
- University of Tokyo Institute for Diversity & Adaptation of Human Mind (UTIDAHM), Tokyo, Japan.,The International Research Center for Neurointelligence (WPI-IRCN), The University of Tokyo Institutes for Advanced Study (UTIAS), Tokyo, Japan.,UTokyo Center for Integrative Science of Human Behavior (CiSHuB), The University of Tokyo, Tokyo, Japan.,Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Ryota Hashimoto
- Department of Pathology of Mental Diseases, National Center of Neurology and Psychiatry, National Institute of Mental Health, Tokyo, Japan.,Department of Psychiatry, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Tetsuaki Arai
- Department of Psychiatry, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
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44
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Kubo T, Nogami N, Bessho A, Morita A, Ikeo S, Yokoyama T, Ishihara M, Honda T, Fujimoto N, Murakami S, Kaira K, Harada T, Nakamura K, Iwasawa S, Shimokawa T, Kiura K, Yamashita N, Okamoto H. Phase II trial of carboplatin, nab-paclitaxel and bevacizumab for advanced non-squamous non-small cell lung cancer (CARNAVAL study; TORG1424/OLCSG1402). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz437.037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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45
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Endo S, Imano M, Furukawa H, Yokokawa M, Nishimura Y, Shinkai M, Yasuda T, Nakagawa T, Adachi S, Lee S, Goto M, Kii T, Uchiyama K, Kawakami H, Shimokawa T, Sakai D, Kurokawa Y, Satoh T. Phase II study of preoperative radiotherapy combined with S-1 plus cisplatin in clinically resectable type 4 or large type 3 gastric cancer: OGSG1205. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz247.110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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46
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Yoshino H, Akutsu K, Takahashi T, Shimokawa T, Ogino H, Kunihara T, Usui M, Watanabe K, Kawada M, Niino T, Masuhara H, Yamamoto T, Nagao K, Takayama M. P5607Clinical characteristics and treatment strategy for acute aortic dissection in Tokyo Acute Aortic Disease Super-Network System. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
Acute aortic dissection (AAD) is one of the most fatal cardiovascular diseases. The prevalence of AAD is reported to be low. The clinical data of AAD from representative cardiovascular centers are not enough to show the whole range of clinical feature of AAD. We have to know the exact prevalence and clinical pictures of AAD under the new system, the Tokyo AAD Super-Network System (TAAD-SNS), for strategy of emergency transport and treatment of AAD which would cover the entire metropolitan area of Tokyo. TAAD-SNS started in 2011, and after slight modification, the new system of AAD re-started in 2013. The aim of this study is to elucidate the whole range of clinical characteristics and recent trends of treatment of AAD.
Methods
Out of 73 hospitals included in Tokyo CCU Network system, 41 hospitals are chosen for TAAD-SNS. These hospitals provide around-the-clock surgery. In this system, the availability of surgical division is monitored in real time. All of the patients suspected of AAD are transferred directly or from primary care hospital to the hospitals of TAAD-SNS.
Results
After exclusion of 237 patients with cardiopulmonary arrest on arrival, 4877 consecutive patients (2923 male, mean age of 69±14 y/o) were admitted to the hospitals with diagnosis of AAD from 2013 to 2016. Prevalence of AAD in Tokyo was about 10 patients per 100,000 populations in every year. After exclusion of 37 patients undetermined into type A or B, 4840 patients (2694 with type A and 2146 with type B) were analyzed. Among the type A patients, 1752 (65%) were classified into type of patent false lumen (classic-type), 721 (27%) of closed false lumen (intramural hematoma: IMH-type), and 221 (8%) were undetermined. Among the type B, 880 (41%) were classified into classic-type, 1129 (53%) of IMH-type, and 137 (6%) were undetermined. Both among type A and B, mean ages were younger in classic-type than in IMH-type (type A: 66±14 vs. 73±12 y/o, p<0.05; type B: 64±15 vs. 72±12 y/o, p<0.05). Prevalence of male population and risk factor of hypertension was higher in type B than in type A both among classic-type and IMH-type. Systolic blood pressure at the emergency room was lower in type A than in type B among both classic-type and IMH-type (classic-type: 124±34 vs. 161±38 mmHg, IMH-type: 130±51 vs. 163±56 mmHg). In-hospital mortality of surgical treatment for type A classic-type and type A IMH-type, conservative strategy for type B classic-type and type B IMH-type was 9.6%, 4.2%, 3.1% and 1.7%, respectively. Stentgraft implantation for type B AAD started and shows a favorable in-hospital mortality compared to the operative treatment (Stentgraft vs. surgery in type B classic-type: 7.8% vs. 6.5%, in type B IMH-type: 10.7% vs. 11.8%, respectively).
Conclusion
Our study showed that prevalence of AAD was 2–3 times higher than previous reports. We should consider to choose the treatment strategy according to the type of AAD, A or B, classic-type or IMH-type.
Acknowledgement/Funding
Tokyo Metropolitan government
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Affiliation(s)
| | | | | | | | - H Ogino
- Tokyo CCU Network, Tokyo, Japan
| | | | - M Usui
- Tokyo CCU Network, Tokyo, Japan
| | | | | | - T Niino
- Tokyo CCU Network, Tokyo, Japan
| | | | | | - K Nagao
- Tokyo CCU Network, Tokyo, Japan
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47
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Kawada J, Sugimoto N, Hirokazu T, Ueda S, Murakami K, Nishikawa K, Kurokawa Y, Fujitani K, Kawakami H, Sakai D, Shimokawa T, Satoh T. A phase 2 study of capecitabine plus oxaliplatin therapy (XELOX) for patients with inoperable/advanced gastric cancer who were resistant/intolerable to fluoropyrimidine, CDDP, taxane, and CPT-11 (OGSG1403). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz155.179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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48
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Islam F, Khan MSI, Nabeka H, Shimokawa T, Yamamiya K, Matsuda S. Age- and sex-associated changes in prosaposin and its receptors in the lacrimal glands of rats. Histol Histopathol 2019; 35:69-81. [PMID: 31215019 DOI: 10.14670/hh-18-137] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Prosaposin, a saposin precursor, is a potent neurotrophic factor found in several tissues and various biological fluids. Saposin-deficient patients have different ophthalmic disorders, indicating a relationship between ocular health and prosaposin. However, there is little information about prosaposin on the ocular surface. Because ocular functions are diverse and depend on age and sex, we examined whether prosaposin and its receptors, G protein-coupled receptor 37 (GPR37) and GPR37L1, are expressed in the major ocular glands, the extra orbital lacrimal gland (ELG), and harderian gland (HG) of rats and whether sex and aging affect their expression. Immunohistochemical analyses revealed that prosaposin and its receptors were expressed in the ELGs and HGs of rats, although their expression varied based on the type of gland, age, and sex. Prosaposin, GPR37, and GPR37L1 were expressed in the basolateral membranes and cytoplasm of acinar cells of the ELGs, and their immunoreactivities were higher in female rats of menopausal age than age-matched male rats. However, such age- and sex-related differences in the immunoreactivities of prosaposin, GPR37, and GPR37L1 were not observed in the HGs. Triple immunofluorescence labelling revealed that prosaposin, GPR37, and GPR37L1 were co-localised in the acinar and ductal cells in the ELGs, although the degrees of colocalization varied according to the age and sex of the rats. Together, the present results showed that prosaposin and its receptors were expressed in the major ocular glands of rats, and their immunoreactivities to the ELGs differed considerably with age and sex.
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Affiliation(s)
- Farzana Islam
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Md Sakirul Islam Khan
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan.
| | - Hiroaki Nabeka
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Tetsuya Shimokawa
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Kimiko Yamamiya
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Seiji Matsuda
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
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49
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Nakamura T, Shinohara H, Okada T, Hisamori S, Tsunoda S, Obama K, Kurahashi Y, Takai A, Shimokawa T, Matsuda S, Makishima H, Takakuwa T, Yamada S, Sakai Y. Revisiting the infracardiac bursa using multimodal methods: topographic anatomy for surgery of the esophagogastric junction. J Anat 2019; 235:88-95. [PMID: 30977530 DOI: 10.1111/joa.12989] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/05/2019] [Indexed: 11/30/2022] Open
Abstract
In embryology, the infracardiac bursa (ICB) is a well-known derivative separated from the omental bursa. During surgeries around the esophagogastric junction (EGJ), surgeons often encounter a closed space considered to be equivalent to the ICB, but the macroscopic anatomy in adults is hardly known. This study aimed to revisit the ICB using multimodal methods to show its development from the embryonic to adult stage and clarify its persistence and topographic anatomy. Histological sections of 79 embryos from Carnegie stage (CS) 16 to 23 and magnetic resonance (MR) images of 39 fetuses were examined to study the embryological development of the ICB. Horizontal sections around the EGJ obtained from three adult cadavers were examined to determine the topographic anatomy and histology of the ICB. Further, 32 laparoscopic surgical videos before (n = 16) and after (n = 16) the start of this study were reviewed to confirm its remaining rate and topographic anatomy in surgery. The ICB was formed in 1 out of 10 CS17 samples, and in 8 out of 10 CS18 samples. Further, it was observed in all CS19-23 except one CS23 sample and in 25 (64%) out of 39 fetus samples. Three-dimensional reconstructed MR images of fetuses revealed that the ICB was located at the right alongside the esophagus and the cranial side of the diaphragmatic crus. In one adult cadaver, the caudal end of the ICB arose from the level of the esophageal hiatus and the cranial end reached up to the level of the pericardium. The inner surface cells of the space consisted of the mesothelium. In laparoscopic surgery, the ICB was identified in only 11 (69%) out of 16 surgeries before. However, subsequently we were able to identify the ICB reproducibly in 15 (94%) out of 16 surgeries. Thus, the ICB is the structure commonly remaining in almost all adults as a closed space located at the right alongside the esophagus and the cranial side of the diaphragmatic crus. It may be available as a useful landmark in surgery of the EGJ.
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Affiliation(s)
- Tatsuro Nakamura
- Department of Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | | | - Tomoaki Okada
- Department of Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Shigeo Hisamori
- Department of Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Shigeru Tsunoda
- Department of Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Kazutaka Obama
- Department of Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | | | - Akihiro Takai
- Department of HBP and Breast Surgery, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Tetsuya Shimokawa
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Seiji Matsuda
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Haruyuki Makishima
- Congenital Anomaly Research Center, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Tetsuya Takakuwa
- Human Health Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Shigehito Yamada
- Congenital Anomaly Research Center, Kyoto University Graduate School of Medicine, Kyoto, Japan.,Human Health Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yoshiharu Sakai
- Department of Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
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50
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Otokura M, Leibnitz K, Koizumi Y, Kominami D, Shimokawa T, Murata M. Evolvable Virtual Network Function Placement Method: Mechanism and Performance Evaluation. IEEE Trans Netw Serv Manage 2019. [DOI: 10.1109/tnsm.2018.2890273] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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