1
|
Nagayama Y, Edamoto M, Komine Y, Nakai H, Ichikura-Iida A, Inoue T, Ono K, Otani M, Iwasaki S. Streptococcal Infection-related Glomerulonephritis in an Elderly Diabetic Patient Complicated by Hemophagocytic Syndrome and Cytomegalovirus Nephritis. Intern Med 2023; 62:261-267. [PMID: 35768220 PMCID: PMC9908401 DOI: 10.2169/internalmedicine.9314-21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
There has been a significant shift in epidemiology and renal outcomes of infection-related glomerulonephritis (IRGN) in recent years. The renal prognosis of IRGN is often poor in adults, especially in the elderly and diabetics. We herein report an elderly diabetic patient with IRGN due to streptococcal infection complicated by hemophagocytic syndrome and cytomegalovirus nephritis, which is uncommon among non-transplant patients. Infection control and steroids did not recover the patient's renal function. For elderly IRGN patients with diabetes, a further investigation of the most effective treatment for related renal outcomes is needed.
Collapse
Affiliation(s)
| | - Mio Edamoto
- Department of Nephrology, Yokohama Municipal Citizen's Hospital, Japan
| | - Yuna Komine
- Department of Nephrology, Yokohama Municipal Citizen's Hospital, Japan
| | - Hiroki Nakai
- Department of Nephrology, Yokohama Municipal Citizen's Hospital, Japan
| | | | - Takashi Inoue
- Department of Nephrology, Yokohama Municipal Citizen's Hospital, Japan
| | - Kyoko Ono
- Department of Diagnostic Pathology, Yokohama Municipal Citizen's Hospital, Japan
| | - Masako Otani
- Division of Diagnostic Pathology, Yokohama City University Medical Center, Japan
| | - Shigeki Iwasaki
- Department of Nephrology, Yokohama Municipal Citizen's Hospital, Japan
| |
Collapse
|
2
|
Nagayama Y, Kashimura S, Ichikura-Iida A, Inoue T. Iliac Arterial Thrombosis in Minimal Change Nephrotic Syndrome. Intern Med 2022; 62:1243-1244. [PMID: 36070947 PMCID: PMC10183295 DOI: 10.2169/internalmedicine.0294-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
| | - Shin Kashimura
- Department of Cardiology, Yokohama Municipal Citizen's Hospital, Japan
| | | | - Takashi Inoue
- Department of Nephrology, Yokohama Municipal Citizen's Hospital, Japan
| |
Collapse
|
3
|
Ebina K, Etani Y, Tsuboi H, Nagayama Y, Kashii M, Miyama A, Kunugiza Y, Hirao M, Okamura G, Noguchi T, Takami K, Goshima A, Miura T, Fukuda Y, Kurihara T, Okada S, Nakata K. Effects of prior osteoporosis treatment on the treatment response of romosozumab followed by denosumab in patients with postmenopausal osteoporosis. Osteoporos Int 2022; 33:1807-1813. [PMID: 35362725 DOI: 10.1007/s00198-022-06386-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 03/25/2022] [Indexed: 01/28/2023]
Abstract
UNLABELLED In patients with postmenopausal osteoporosis, prior osteoporosis treatment affected the bone mineral density increase of following treatment with 12 months of romosozumab, although it did not affect that of following treatment with 12 months of denosumab after romosozumab. PURPOSE To investigate the effects of prior osteoporosis treatment on the response to treatment with romosozumab (ROMO) followed by denosumab (DMAb) in patients with postmenopausal osteoporosis. METHODS In this prospective, observational, multicenter study, treatment-naïve patients (Naïve; n = 55) or patients previously treated with bisphosphonates (BP; n = 37), DMAb (DMAb; n = 45) or teriparatide (TPTD; n = 17) (mean age, 74.6 years; T-scores of the lumbar spine [LS] - 3.2 and total hip [TH] - 2.6) were switched to ROMO for 12 months, followed by DMAb for 12 months. Bone mineral density (BMD) and serum bone turnover markers were evaluated for 24 months. RESULTS A BMD increase was observed at 12 and 24 months in the following patients: Naïve (18.2% and 22.0%), BP (10.2% and 12.1%), DMAb (6.6% and 9.7%), and TPTD (10.8% and 15.0%) (P < 0.001 between the groups at both 12 and 24 months) in LS and Naïve (5.5% and 8.3%), BP (2.9% and 4.1%), DMAb (0.6% and 2.2%), and TPTD (4.3% and 5.4%) (P < 0.01 between the groups at 12 months and P < 0.001 at 24 months) in TH, respectively. The BMD increase in LS from 12 to 24 months was negatively associated with the levels of bone resorption marker at 24 months. Incidences of major fragility fractures for the respective groups were as follows: Naïve (5.5%), BP (16.2%), DMAb (11.1%), and TPTD (5.9%). CONCLUSIONS Previous treatment affected the BMD increase of following treatment with ROMO, although it did not affect that of following treatment with DMAb after ROMO.
Collapse
Affiliation(s)
- K Ebina
- Department of Musculoskeletal Regenerative Medicine, Osaka University, Graduate School of Medicine, 2-2 Yamada-oka, Suita, Osaka, 565-0871, Japan.
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita, Osaka, 565-0871, Japan.
| | - Y Etani
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - H Tsuboi
- Department of Orthopaedic Surgery, Osaka Rosai Hospital, 1179-3 Nagasone-cho, Kita-ku, Sakai, 591-8025, Japan
| | - Y Nagayama
- Nagayama Rheumatology and Orthopaedic Clinic, 4-3-25 Hiokisounishi-machi, Higashi-ku, Sakai, 599-8114, Japan
| | - M Kashii
- Department of Orthopaedic Surgery, Toyonaka Municipal Hospital, 4-14-1 Shibahara-cho, Toyonaka, Osaka, 560-8565, Japan
| | - A Miyama
- Department of Orthopaedic Surgery, Osaka Toneyama Medical Center, 5-1-1 Toneyama, Toyonaka, Osaka, 560-8552, Japan
| | - Y Kunugiza
- Department of Orthopaedic Surgery, Japan Community Health Care Organization, Hoshigaoka Medical Center, 4-8-1 Hoshigaoka, Hirakata, Osaka, 573-8511, Japan
| | - M Hirao
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - G Okamura
- Department of Orthopaedic Surgery, Osaka Rosai Hospital, 1179-3 Nagasone-cho, Kita-ku, Sakai, 591-8025, Japan
| | - T Noguchi
- Department of Orthopaedic Surgery, National Hospital Organization Osaka Minami Medical Center, 2-1 Kidohigashi, Kawachinagano, Osaka, 586-8521, Japan
| | - K Takami
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - A Goshima
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - T Miura
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Y Fukuda
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - T Kurihara
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - S Okada
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - K Nakata
- Department of Health and Sport Sciences, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita, Osaka, 565-0871, Japan
| |
Collapse
|
4
|
Gotoh M, Nakaura T, Funama Y, Morita K, Sakabe D, Uetani H, Nagayama Y, Kidoh M, Hatemura M, Masuda T, Hirai T. Virtual magnetic resonance lumbar spine images generated from computed tomography images using conditional generative adversarial networks. Radiography (Lond) 2021; 28:447-453. [PMID: 34774411 DOI: 10.1016/j.radi.2021.10.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 10/07/2021] [Accepted: 10/09/2021] [Indexed: 11/26/2022]
Abstract
INTRODUCTION The aim of this study was to generate virtual Magnetic resonance (MR) from computed tomography (CT) using conditional generative adversarial networks (cGAN). METHODS We selected examinations from 22 adults who obtained their CT and MR lumbar spine examinations. Overall, 4 examinations were used as test data, and 18 examinations were used as training data. A cGAN was trained to generate virtual MR images from the CT images using the corresponding MR images as targets. After training, the generated virtual MR images from test data in epochs 1, 10, 50, 100, 500, and 1000 were compared with the original ones using the mean square error (MSE) and structural similarity index (SSIM). Additionally, two radiologists also performed qualitative assessments. RESULTS The MSE of the virtual MR images decreased as the epoch of the cGANs increased from the original CT images: 8876.7 ± 1192.9 (original CT), 1567.5 ± 433.9 (Epoch 1), 1242.4 ± 442.0 (Epoch 10), 1065.8 ± 478.1 (Epoch 50), 1276.1 ± 718.9 (Epoch 100), 1046.7 ± 488.2 (Epoch 500), and 1031.7 ± 400.0 (Epoch 1000). No considerable differences were observed in the qualitative evaluation between the virtual MR images and the original ones, except in the structure of the spinal canal. CONCLUSION Virtual MR lumbar spine images using cGANs could be a feasible technique to generate near-MR images from CT without MR examinations for evaluation of the vertebral body and intervertebral disc. IMPLICATIONS FOR PRACTICE Virtual MR lumbar spine images using cGANs can offer virtual CT images with sufficient quality for attenuation correction for PET or dose planning in radiotherapy.
Collapse
Affiliation(s)
- M Gotoh
- Department of Radiology, Kumamoto University Hospital, Japan
| | - T Nakaura
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, Japan.
| | - Y Funama
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, Japan
| | - K Morita
- Department of Radiology, Kumamoto University Hospital, Japan
| | - D Sakabe
- Department of Radiology, Kumamoto University Hospital, Japan
| | - H Uetani
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, Japan
| | - Y Nagayama
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, Japan
| | - M Kidoh
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, Japan
| | - M Hatemura
- Department of Radiology, Kumamoto University Hospital, Japan
| | - T Masuda
- Department of Radiological Technology, Faculty of Health Science and Technology, Kawasaki University of Medical Welfare, Japan
| | - T Hirai
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, Japan
| |
Collapse
|
5
|
Nagayama Y, Isoo N, Nakashima A, Suzuki K, Yamano M, Nariyama T, Yagame M, Matsui K. Renoprotective effects of paramylon, a β-1,3-D-Glucan isolated from Euglena gracilis Z in a rodent model of chronic kidney disease. PLoS One 2020; 15:e0237086. [PMID: 32764782 PMCID: PMC7413521 DOI: 10.1371/journal.pone.0237086] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 07/20/2020] [Indexed: 12/25/2022] Open
Abstract
Paramylon is a novel β-glucan that is stored by Euglena gracilis Z, which is a unicellular photosynthesizing green alga with characteristics of both animals and plants. Recent studies have indicated that paramylon functions as an immunomodulator or a dietary fiber. Currently, chronic kidney disease (CKD) is a global health problem, and there is no effective preventive treatment for CKD progression. However, paramylon may suppress the progression of CKD via the elimination of uremic toxins or modulation of gut microbiota, leading to the alleviation of inflammation. The aim of this study was to evaluate the effect of paramylon in CKD rat model. Eight-week-old male Wistar rats with a 5/6 nephrectomy were given either a normal diet or a diet containing 5% paramylon for 8 weeks. Proteinuria was measured intermittently. Serum and kidney tissues were harvested after sacrifice. We performed a renal molecular and histopathological investigation, serum metabolome analysis, and gut microbiome analysis. The results showed that paramylon attenuated renal function, glomerulosclerosis, tubulointerstitial injury, and podocyte injury in the CKD rat model. Renal fibrosis, tubulointerstitial inflammatory cell infiltration, and proinflammatory cytokine gene expression levels tended to be suppressed with paramylon treatment. Further, paramylon inhibited the accumulation of uremic toxins, including tricarboxylic acid (TCA) cycle-related metabolites and modulated a part of CKD-related gut microbiota in the CKD rat model. In conclusion, we suggest that paramylon mainly inhibited the absorption of non-microbiota-derived uremic solutes, leading to protect renal injury via anti-inflammatory and anti-fibrotic effects. Paramylon may be a novel compound that can act against CKD progression.
Collapse
Affiliation(s)
- Yoshikuni Nagayama
- Department of Internal Medicine IV, Teikyo University School of Medicine, University Hospital, Mizonokuchi, Kawasaki, Japan
- * E-mail:
| | - Naoyuki Isoo
- Department of Internal Medicine IV, Teikyo University School of Medicine, University Hospital, Mizonokuchi, Kawasaki, Japan
| | | | | | - Mizuki Yamano
- Department of Internal Medicine IV, Teikyo University School of Medicine, University Hospital, Mizonokuchi, Kawasaki, Japan
| | - Tomoyuki Nariyama
- Department of Internal Medicine IV, Teikyo University School of Medicine, University Hospital, Mizonokuchi, Kawasaki, Japan
| | - Motoka Yagame
- Department of Internal Medicine IV, Teikyo University School of Medicine, University Hospital, Mizonokuchi, Kawasaki, Japan
| | - Katsuyuki Matsui
- Department of Internal Medicine IV, Teikyo University School of Medicine, University Hospital, Mizonokuchi, Kawasaki, Japan
| |
Collapse
|
6
|
Nagayama Y, Tanoue S, Oda S, Sakabe D, Emoto T, Kidoh M, Uetani H, Sasao A, Nakaura T, Ikeda O, Yamada K, Yamashita Y. Metal Artifact Reduction in Head CT Performed for Patients with Deep Brain Stimulation Devices: Effectiveness of a Single-Energy Metal Artifact Reduction Algorithm. AJNR Am J Neuroradiol 2020; 41:231-237. [PMID: 31879332 DOI: 10.3174/ajnr.a6375] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 11/15/2019] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Deep brain stimulation electrodes induce massive artifacts on CT images, deteriorating the diagnostic value of examinations. We aimed to investigate the usefulness and potential limitations of a single-energy metal artifact reduction algorithm in head CT performed in patients with implanted deep brain stimulation devices. MATERIALS AND METHODS Thirty-four patients with deep brain stimulation (bilateral, n = 28) who underwent head CT on a 320-detector row scanner and whose images were reconstructed with and without single-energy metal artifact reduction at the examinations were retrospectively included. The severity of artifacts around electrodes was assessed objectively using SDs and an artifact index. Two radiologists subjectively evaluated the severity of artifacts from electrodes, the visibility of electrode localization and surrounding structures, and overall diagnostic confidence on 4-point scales. Background image quality (GM-WM contrast and image noise) was subjectively and objectively assessed. The presence and location of artifacts newly produced by single-energy metal artifact reduction were analyzed. RESULTS Single-energy metal artifact reduction provided lower objective and subjective metal artifacts and improved visualization of electrode localization and surrounding structures and diagnostic confidence compared with non-single-energy metal artifact reduction images, with statistical significance (all, P < .01). No significant differences were observed in GM-WM contrast and image noise (all, P ≥ .11). The new artifacts from single-energy metal artifact reduction were prominently observed in patients with bilateral deep brain stimulation at high convexity, possibly induced by deep brain stimulation leads placed under the parietal scalp. CONCLUSIONS Single-energy metal artifact reduction substantially reduces the metal artifacts from deep brain stimulation electrodes and improves the visibility of intracranial structures without affecting background image quality. However, non-single-energy metal artifact reduction images should be simultaneously reviewed to accurately assess the entire intracranial area, particularly in patients with bilateral deep brain stimulation.
Collapse
Affiliation(s)
- Y Nagayama
- From the Department of Diagnostic Radiology (Y.N., S.O., M.K., H.U., A.S., T.N., O.I., Y.Y.)
| | - S Tanoue
- Diagnostic Radiology (S.T.), Graduate School of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - S Oda
- From the Department of Diagnostic Radiology (Y.N., S.O., M.K., H.U., A.S., T.N., O.I., Y.Y.)
| | - D Sakabe
- Department of Central Radiology (D.S., T.E.), Kumamoto University Hospital, Kumamoto, Japan
| | - T Emoto
- Department of Central Radiology (D.S., T.E.), Kumamoto University Hospital, Kumamoto, Japan
| | - M Kidoh
- From the Department of Diagnostic Radiology (Y.N., S.O., M.K., H.U., A.S., T.N., O.I., Y.Y.)
| | - H Uetani
- From the Department of Diagnostic Radiology (Y.N., S.O., M.K., H.U., A.S., T.N., O.I., Y.Y.)
| | - A Sasao
- From the Department of Diagnostic Radiology (Y.N., S.O., M.K., H.U., A.S., T.N., O.I., Y.Y.)
| | - T Nakaura
- From the Department of Diagnostic Radiology (Y.N., S.O., M.K., H.U., A.S., T.N., O.I., Y.Y.)
| | - O Ikeda
- From the Department of Diagnostic Radiology (Y.N., S.O., M.K., H.U., A.S., T.N., O.I., Y.Y.)
| | - K Yamada
- Graduate School of Medical Sciences, and Departments of Neurosurgery (K.Y.)
| | - Y Yamashita
- From the Department of Diagnostic Radiology (Y.N., S.O., M.K., H.U., A.S., T.N., O.I., Y.Y.)
| |
Collapse
|
7
|
Nagayama Y, Yamano M, Yagame M, Nariyama T, Takahashi M, Kawamoto M, Matsui K. TAFRO syndrome as a cause of glomerular microangiopathy: a case report and literature review. BMC Nephrol 2019; 20:375. [PMID: 31623576 PMCID: PMC6798393 DOI: 10.1186/s12882-019-1574-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 09/30/2019] [Indexed: 12/31/2022] Open
Abstract
Background TAFRO syndrome is a systemic inflammatory disorder that manifests as thrombocytopenia (T), anasarca (A), fever (F), reticulin fibrosis (R), and organomegaly (O). Renal dysfunction is frequently complicated with TAFRO syndrome, however, it is challenging to perform kidney biopsy in patients with TAFRO syndrome in the presence of thrombocytopenia. Renal histology in TAFRO syndrome mainly shows membranoproliferative glomerulonephritis (MPGN)-like lesions or thrombotic microangiopathy (TMA)-like glomerulopathy. We review our case and previous reports of TAFRO syndrome with kidney biopsy findings and discuss the renal pathophysiology of TAFRO syndrome. Case presentation We describe a previously healthy 48- year-old woman with TAFRO syndrome. Kidney biopsy performed before the treatment showed diffuse global endocapillary proliferative changes with endothelial cell swelling, double contours of partial capillary walls, and mesangiolysis, consistent with TMA-like glomerulopathy. Glucocorticoid therapy including steroid pulse was ineffective and she developed anasarca, renal dysfunction and oliguria. Hemodialysis was required. However, the anti-Interleukin (IL)-6 receptor antibody (tocilizumab) therapy was very effective. An increase in urinary volume was achieved about 2 weeks after the tocilizumab therapy and hemodialysis was discontinued. To investigate the renal pathophysiology of TAFRO syndrome, we performed immunohistological staining of vascular endothelial growth factor (VEGF)-A, CD34, and D2–40, in our case and a normal control kidney. Glomerular VEGF-A was especially positive in podocytes both, in the control and in the case, with no significant difference and there was a significant increase of VEGF-A staining area in the cortical peritubular capillaries in the case. Both glomerular and renal cortical CD34 expression were significantly decreased in our case. D2–40 expression in cortex was not significantly different. Conclusions We reviewed our case and other 10 previous reports about renal biopsy findings in TAFRO syndrome and found that glomerular microangiopathy was a common finding. IL-6-VEGF-axis-induced glomerular microangiopathy may play a crucial role in developing acute kidney injury in TAFRO syndrome and the anti-IL-6 receptor antibody therapy may be useful for TAFRO syndrome refractory to glucocorticoids. About the pathophysiology of VEGF in TAFRO syndrome, VEGF balance in the glomerulus and perhaps in the peritubular capillary system as well may be critical. Further investigation is needed.
Collapse
Affiliation(s)
- Yoshikuni Nagayama
- Department of Internal Medicine IV, Teikyo University School of medicine, University Hospital, Mizonokuchi, Kawasaki, Japan.
| | - Mizuki Yamano
- Department of Internal Medicine IV, Teikyo University School of medicine, University Hospital, Mizonokuchi, Kawasaki, Japan
| | - Motoka Yagame
- Department of Internal Medicine IV, Teikyo University School of medicine, University Hospital, Mizonokuchi, Kawasaki, Japan
| | - Tomoyuki Nariyama
- Department of Internal Medicine IV, Teikyo University School of medicine, University Hospital, Mizonokuchi, Kawasaki, Japan
| | - Mikiko Takahashi
- Department of Diagnostic Pathology, Teikyo University School of medicine, University Hospital, Mizonokuchi, Kawasaki, Japan
| | - Masashi Kawamoto
- Department of Diagnostic Pathology, Teikyo University School of medicine, University Hospital, Mizonokuchi, Kawasaki, Japan
| | - Katsuyuki Matsui
- Department of Internal Medicine IV, Teikyo University School of medicine, University Hospital, Mizonokuchi, Kawasaki, Japan
| |
Collapse
|
8
|
Nagayama Y, Nakaura T, Oda S, Taguchi N, Utsunomiya D, Funama Y, Kidoh M, Namimoto T, Sakabe D, Hatemura M, Yamashita Y. Dual-layer detector CT of chest, abdomen, and pelvis with a one-third iodine dose: image quality, radiation dose, and optimal monoenergetic settings. Clin Radiol 2018; 73:1058.e21-1058.e29. [DOI: 10.1016/j.crad.2018.08.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 08/24/2018] [Indexed: 12/12/2022]
|
9
|
Nakagawa M, Nakaura T, Namimoto T, Iyama Y, Kidoh M, Hirata K, Nagayama Y, Oda S, Sakamoto F, Shiraishi S, Yamashita Y. A multiparametric MRI-based machine learning to distinguish between uterine sarcoma and benign leiomyoma: comparison with 18F-FDG PET/CT. Clin Radiol 2018; 74:167.e1-167.e7. [PMID: 30471748 DOI: 10.1016/j.crad.2018.10.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 10/18/2018] [Indexed: 10/27/2022]
Abstract
AIM To compare the performance of machine learning using multiparametric magnetic resonance imaging (mp-MRI) and positron-emission tomography (PET) to distinguish between uterine sarcoma and leiomyoma. MATERIALS AND METHODS This retrospective study was approved by the institutional review board and informed consent was waived. Sixty-seven consecutive patients with uterine sarcoma or leiomyoma who underwent pelvic 3 T MRI and PET were included. Of 67 patients, 11 had uterine sarcomas and 56 had leiomyomas. Seven different parameters were measured in the tumours, from T2-weighted, T1-weighted, contrast-enhanced, and diffusion-weighted MRI, and PET. The areas under the receiver operating characteristic curves (AUC) with a leave-one-out cross-validation were used to compare the diagnostic performances of the univariate and multivariate logistic regression (LR) model with those of two board-certified radiologists. RESULTS The AUCs of the univariate models using MRI parameters (0.68-0.8) were inferior to that of the maximum standardised uptake value (SUVmax) of PET (0.85); however, the AUC of the multivariate LR model (0.92) was superior to that of SUVmax, and comparable to that of the board-certified radiologists (0.97 and 0.89). CONCLUSION The diagnostic performance of the machine learning using mp-MRI was superior to PET and comparable to that of experienced radiologists.
Collapse
Affiliation(s)
- M Nakagawa
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, Honjo 1-1-1, Tyuou-ku, Kumamoto, 860-0811, Japan.
| | - T Nakaura
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, Honjo 1-1-1, Tyuou-ku, Kumamoto, 860-0811, Japan
| | - T Namimoto
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, Honjo 1-1-1, Tyuou-ku, Kumamoto, 860-0811, Japan
| | - Y Iyama
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, Honjo 1-1-1, Tyuou-ku, Kumamoto, 860-0811, Japan
| | - M Kidoh
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, Honjo 1-1-1, Tyuou-ku, Kumamoto, 860-0811, Japan
| | - K Hirata
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, Honjo 1-1-1, Tyuou-ku, Kumamoto, 860-0811, Japan
| | - Y Nagayama
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, Honjo 1-1-1, Tyuou-ku, Kumamoto, 860-0811, Japan
| | - S Oda
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, Honjo 1-1-1, Tyuou-ku, Kumamoto, 860-0811, Japan
| | - F Sakamoto
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, Honjo 1-1-1, Tyuou-ku, Kumamoto, 860-0811, Japan
| | - S Shiraishi
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, Honjo 1-1-1, Tyuou-ku, Kumamoto, 860-0811, Japan
| | - Y Yamashita
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, Honjo 1-1-1, Tyuou-ku, Kumamoto, 860-0811, Japan
| |
Collapse
|
10
|
Nagayama Y, Nakaura T, Oda S, Tsuji A, Urata J, Furusawa M, Tanoue S, Utsunomiya D, Yamashita Y. Value of 100 kVp scan with sinogram-affirmed iterative reconstruction algorithm on a single-source CT system during whole-body CT for radiation and contrast medium dose reduction: an intra-individual feasibility study. Clin Radiol 2017; 73:217.e7-217.e16. [PMID: 29029768 DOI: 10.1016/j.crad.2017.09.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Revised: 07/04/2017] [Accepted: 09/12/2017] [Indexed: 01/28/2023]
Abstract
AIM To perform an intra-individual investigation of the usefulness of a contrast medium (CM) and radiation dose-reduction protocol using single-source computed tomography (CT) combined with 100 kVp and sinogram-affirmed iterative reconstruction (SAFIRE) for whole-body CT (WBCT; chest-abdomen-pelvis CT) in oncology patients. MATERIALS AND METHODS Forty-three oncology patients who had undergone WBCT under both 120 and 100 kVp protocols at different time points (mean interscan intervals: 98 days) were included retrospectively. The CM doses for the 120 and 100 kVp protocols were 600 and 480 mg iodine/kg, respectively; 120 kVp images were reconstructed with filtered back-projection (FBP), whereas 100 kVp images were reconstructed with FBP (100 kVp-F) and the SAFIRE (100 kVp-S). The size-specific dose estimate (SSDE), iodine load and image quality of each protocol were compared. RESULTS The SSDE and iodine load of 100 kVp protocol were 34% and 21%, respectively, lower than of 120 kVp protocol (SSDE: 10.6±1.1 versus 16.1±1.8 mGy; iodine load: 24.8±4versus 31.5±5.5 g iodine, p<0.01). Contrast enhancement, objective image noise, contrast-to-noise-ratio, and visual score of 100 kVp-S were similar to or better than of 120 kVp protocol. CONCLUSION Compared with the 120 kVp protocol, the combined use of 100 kVp and SAFIRE in WBCT for oncology assessment with an SSCT facilitated substantial reduction in the CM and radiation dose while maintaining image quality.
Collapse
Affiliation(s)
- Y Nagayama
- Department of Radiology, Kumamoto City Hospital 1-1-60, Koto, Higashi-ku, Kumamoto City, 862-0909, Japan; Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan.
| | - T Nakaura
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - S Oda
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - A Tsuji
- Department of Radiology, Kumamoto City Hospital 1-1-60, Koto, Higashi-ku, Kumamoto City, 862-0909, Japan
| | - J Urata
- Department of Radiology, Kumamoto City Hospital 1-1-60, Koto, Higashi-ku, Kumamoto City, 862-0909, Japan
| | - M Furusawa
- Department of Radiology, Kumamoto City Hospital 1-1-60, Koto, Higashi-ku, Kumamoto City, 862-0909, Japan
| | - S Tanoue
- Department of Radiology, Kumamoto City Hospital 1-1-60, Koto, Higashi-ku, Kumamoto City, 862-0909, Japan; Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - D Utsunomiya
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Y Yamashita
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| |
Collapse
|
11
|
Nagayama Y, Inoue Y, Inui K, Yoshimura A. Comparison of Renal Outcome among Japanese Patients with or without Microangiopathic Hemolysis in Malignant Phase Hypertension: A Single-Center Retrospective Study. Nephron Clin Pract 2017; 137:197-204. [PMID: 28817823 DOI: 10.1159/000479073] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Accepted: 06/28/2017] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND/AIMS Although microangiopathic hemolysis (MAH) is a well-known complication of malignant phase hypertension (MPH), only less data on whether MAH in MPH predicts renal outcome exist. Therefore, we evaluated whether MAH was associated with the renal outcome in patients with MPH. METHODS We conducted a single-center, retrospective, cohort study. Data from 35 patients diagnosed with MPH between October 1998 and January 2015 were analyzed. MPH was defined as the presence of a diastolic blood pressure of ≥120 mm Hg and grades III/IV hypertensive retinopathy according to the Keith-Wagener-Barker classification. MAH was defined as the presence of a low platelet count (<150 × 109/L) together with either an elevated level of lactate dehydrogenase (LDH; >220 U/L), or the presence of schistocytes, or both and the normalization of platelet and LDH level or schistocyte levels after adequate blood pressure control was achieved. The primary outcome was dialysis induction. RESULTS Fifteen patients had MAH. Those with MAH had significantly severe renal dysfunction at the onset of MPH. The length of follow-up (median, interquartile range) of patients with MAH and those without MAH were 30 (16-94) and 48 (25-115) months, respectively. Dialysis was induced in 9 of 15 patients with MAH and in 6 of 20 patients without MAH. Renal survival in patients with MAH was worse than that in those without, but this was not statistically significant (p = 0.08). By multivariate Cox regression analysis, MAH was not shown to contribute to dialysis induction. CONCLUSION MAH did not predict renal outcome in MPH.
Collapse
Affiliation(s)
- Yoshikuni Nagayama
- Department of Internal Medicine IV, Teikyo University School of medicine, University Hospital, Kawasaki, Japan
| | | | | | | |
Collapse
|
12
|
Hawryluk RJ, Mueller D, Hosea J, Barnes CW, Beer M, Bell MG, Bell R, Biglari H, Bitter M, Boivin R, Bretz NL, Budny R, Bush CE, Chen L, Cheng CZ, Cowley S, Dairow DS, Efthimion PC, Fonck RJ, Fredrickson E, Furth HP, Greene G, Grek B, Grisham LR, Hammett G, Heidbrink W, Hill KW, Hoffman D, Hulse RA, Hsuan H, Janos A, Jassby DL, Jobes FC, Johnson DW, Johnson LC, Kamperschroer J, Kesner J, Phillips CK, Kilpatrick SJ, Kugel H, LaMarche PH, LeBlanc B, Manos DM, Mansfield DK, Marmar ES, Mazzucato E, McCarthy MP, Machuzak J, Mauel M, McCune D, McGuire KM, Medley SS, Monticello DR, Mikkelsen D, Nagayama Y, Navratil GA, Nazikian R, Owens DK, Park H, Park W, Paul S, Perkins F, Pitcher S, Rasmussen D, Redi MH, Rewoldt G, Roberts D, Roquemore AL, Sabbagh S, Schilling G, Schivell J, Schmidt GL, Scott SD, Snipes J, Stevens J, Stratton BC, Strachan JD, Stodiek W, Synakowski E, Tang W, Taylor G, Terry J, Timberlake JR, Ulrickson HH, Towner M, von Goeler S, Wieland R, Wilson JR, Wong KL, Woskov P, Yamada M, Young KM, Zamstorff MC, Zweben SJ. Status and Plans for TFTR. ACTA ACUST UNITED AC 2017. [DOI: 10.13182/fst92-a29907] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- R. J. Hawryluk
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - D. Mueller
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - J. Hosea
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | | | - M. Beer
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - M. G. Bell
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - R. Bell
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - H. Biglari
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - M. Bitter
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - R. Boivin
- Massachusetts Institute of Technology, Cambridge, MA
| | - N. L. Bretz
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - R. Budny
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - C. E. Bush
- Oak Ridge National Laboratory, Oak Ridge, TN
| | - L. Chen
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - C. Z. Cheng
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - S. Cowley
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - D. S. Dairow
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - P. C. Efthimion
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | | | - E. Fredrickson
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - H. P. Furth
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - G. Greene
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - B. Grek
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - L. R. Grisham
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - G. Hammett
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | | | - K. W. Hill
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - D. Hoffman
- Oak Ridge National Laboratory, Oak Ridge, TN
| | - R. A. Hulse
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - H. Hsuan
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - A. Janos
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - D. L. Jassby
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - F. C. Jobes
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - D. W. Johnson
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - L. C. Johnson
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - J. Kamperschroer
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - J. Kesner
- Massachusetts Institute of Technology, Cambridge, MA
| | - C. K. Phillips
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - S. J. Kilpatrick
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - H. Kugel
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - P. H. LaMarche
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - B. LeBlanc
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - D. M. Manos
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - D. K. Mansfield
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - E. S. Marmar
- Massachusetts Institute of Technology, Cambridge, MA
| | - E. Mazzucato
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - M. P. McCarthy
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - J. Machuzak
- Massachusetts Institute of Technology, Cambridge, MA
| | - M. Mauel
- Columbia University, New York, NY
| | - D.C. McCune
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - K. M. McGuire
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - S. S. Medley
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - D. R. Monticello
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - D. Mikkelsen
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | | | | | - R. Nazikian
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - D. K. Owens
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - H. Park
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - W. Park
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - S. Paul
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - F. Perkins
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - S. Pitcher
- Canadian Fusion Fuels Technology Project, Toronto, Canada
| | | | - M. H. Redi
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - G. Rewoldt
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | | | - A. L. Roquemore
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | | | - G. Schilling
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - J. Schivell
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - G. L. Schmidt
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - S. D. Scott
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - J. Snipes
- Massachusetts Institute of Technology, Cambridge, MA
| | - J. Stevens
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - B. C. Stratton
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - J. D. Strachan
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - W. Stodiek
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - E. Synakowski
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - W. Tang
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - G. Taylor
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - J. Terry
- Massachusetts Institute of Technology, Cambridge, MA
| | - J. R. Timberlake
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - H. H. Ulrickson
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - M. Towner
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - S. von Goeler
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - R. Wieland
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - J. R. Wilson
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - K. L. Wong
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - P. Woskov
- Massachusetts Institute of Technology, Cambridge, MA
| | - M. Yamada
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - K. M. Young
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - M. C. Zamstorff
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| | - S. J. Zweben
- Plasma Physics Laboratory, Princeton University P.O. Box 451 Princeton, N.J. 08543 USA (609) 243-3306
| |
Collapse
|
13
|
Komori A, Morisaki T, Mutoh T, Sakakibara S, Takeiri Y, Kumazawa R, Kubo S, Ida K, Morita S, Narihara K, Shimozuma T, Tanaka K, Watanabe KY, Yamada H, Yoshinuma M, Akiyama T, Ashikawa N, Emoto M, Funaba H, Goto M, Ido T, Ikeda K, Inagaki S, Isobe M, Igami H, Itoh K, Kaneko O, Kawahata K, Kobuchi T, Masuzaki S, Matsuoka K, Minami T, Miyazawa J, Muto S, Nagayama Y, Nakamura Y, Nakanishi H, Narushima Y, Nishimura K, Nishiura M, Nishizawa A, Noda N, Ohdachi S, Oka Y, Osakabe M, Ohyabu N, Ozaki T, Peterson BJ, Sagara A, Saito K, Sakamoto R, Sato K, Sato M, Seki T, Shoji M, Sudo S, Tamura N, Toi K, Tokuzawa T, Tsumori K, Uda T, Watari T, Yamada I, Yokoyama M, Yoshimura Y, Motojima O, Beidler CD, Fujita T, Isayama A, Sakamoto Y, Takenaga H, Goncharov P, Ishii K, Sakamoto M, Murakami S, Notake T, Takeuchi N, Okajima S, Sasao M. Overview of Progress in LHD Experiments. Fusion Science and Technology 2017. [DOI: 10.13182/fst06-a1229] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- A. Komori
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - T. Morisaki
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - T. Mutoh
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - S. Sakakibara
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - Y. Takeiri
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - R. Kumazawa
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - S. Kubo
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - K. Ida
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - S. Morita
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - K. Narihara
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - T. Shimozuma
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - K. Tanaka
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - K. Y. Watanabe
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - H. Yamada
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - M. Yoshinuma
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - T. Akiyama
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - N. Ashikawa
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - M. Emoto
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - H. Funaba
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - M. Goto
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - T. Ido
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - K. Ikeda
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - S. Inagaki
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - M. Isobe
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - H. Igami
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - K. Itoh
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - O. Kaneko
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - K. Kawahata
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - T. Kobuchi
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - S. Masuzaki
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - K. Matsuoka
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - T. Minami
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - J. Miyazawa
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - S. Muto
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - Y. Nagayama
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - Y. Nakamura
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - H. Nakanishi
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - Y. Narushima
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - K. Nishimura
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - M. Nishiura
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - A. Nishizawa
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - N. Noda
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - S. Ohdachi
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - Y. Oka
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - M. Osakabe
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - N. Ohyabu
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - T. Ozaki
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - B. J. Peterson
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - A. Sagara
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - K. Saito
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - R. Sakamoto
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - K. Sato
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - M. Sato
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - T. Seki
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - M. Shoji
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - S. Sudo
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - N. Tamura
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - K. Toi
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - T. Tokuzawa
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - K. Tsumori
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - T. Uda
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - T. Watari
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - I. Yamada
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - M. Yokoyama
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - Y. Yoshimura
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - O. Motojima
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - C. D. Beidler
- Max-Planck Institut fuer Plasmaphysik, Greifswald D-17491, Germany
| | - T. Fujita
- Japan Atomic Energy Research Institute, Naka 311-0193, Japan
| | - A. Isayama
- Japan Atomic Energy Research Institute, Naka 311-0193, Japan
| | - Y. Sakamoto
- Japan Atomic Energy Research Institute, Naka 311-0193, Japan
| | - H. Takenaga
- Japan Atomic Energy Research Institute, Naka 311-0193, Japan
| | - P. Goncharov
- Graduate University for Advanced Studies, School of Mathematical and Physical Science Department of Fusion Science, Hayama 240-0193, Japan
| | - K. Ishii
- Kyushu University, Research Institute for Applied Mechanics Kasuga 816-8580, Japan
| | - M. Sakamoto
- Kyushu University, Research Institute for Applied Mechanics Kasuga 816-8580, Japan
| | - S. Murakami
- Kyoto University, Department of Nuclear Engineering, Kyoto 606-8501, Japan
| | - T. Notake
- Nagoya University, Department of Energy Engineering and Science Nagoya 464-8603, Japan
| | - N. Takeuchi
- Nagoya University, Department of Energy Engineering and Science Nagoya 464-8603, Japan
| | - S. Okajima
- Chubu University, Kasugai, Aichi 487-8501, Japan
| | - M. Sasao
- Tohoku University, Graduate School of Engineering, Sendai 980-8579, Japan
| | | |
Collapse
|
14
|
Tokuzawa T, Kawahata K, Nagayama Y, Inagaki S, De Vries PC, Mase A, Kogi Y, Yokota Y, Hojo H, Tanaka K, Ejiri A, Pavlichenko RO, Yamaguchi S, Yoshinaga T, Kuwahara D, Shi Z, Tsuchiya H, Ito Y, Hirokura S, Sudo S, Komori A. Developments of Electron Cyclotron Emission Spectroscopy and Microwave Reflectometry on LHD. Fusion Science and Technology 2017. [DOI: 10.13182/fst10-a10822] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. Tokuzawa
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Kawahata
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - Y. Nagayama
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - S. Inagaki
- Research Institute for Applied Mechanics, Kyushu University, Fukuoka 816-8580, Japan
| | - P. C. De Vries
- Euratom/UKAEA Fusion Association, Culham Science Centre, Abingdon OX14 3EA, United Kingdom
| | - A. Mase
- Art Science and Technology Center for Cooperative Research, Kyushu University, Kasuga 816-8560, Japan
| | - Y. Kogi
- Art Science and Technology Center for Cooperative Research, Kyushu University, Kasuga 816-8560, Japan
| | - Y. Yokota
- Art Science and Technology Center for Cooperative Research, Kyushu University, Kasuga 816-8560, Japan
| | - H. Hojo
- Plasma Research Center, University of Tsukuba, Tsukuba 305-8577, Japan
| | - K. Tanaka
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - A. Ejiri
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan
| | - R. O. Pavlichenko
- Institute of Plasma Physics, National Science Center, Kharkov Institute of Physics and Technology 1, Akademicheskaya St., Kharkov, 61108, Ukraine
| | - S. Yamaguchi
- Faculty of Engineering Science, Kansai University, Osaka 564-8680, Japan
| | - T. Yoshinaga
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - D. Kuwahara
- Tokyo Institute of Technology, Tokyo 152-8550, Japan
| | - Z. Shi
- Graduate University for Advanced Studies, Toki 509-5292, Japan
| | - H. Tsuchiya
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - Y. Ito
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - S. Hirokura
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - S. Sudo
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - A. Komori
- National Institute for Fusion Science, Toki 509-5292, Japan
| | | |
Collapse
|
15
|
Nakanishi H, Ohsuna M, Kojima M, Imazu S, Nonomura M, Hasegawa M, Nakamura K, Higashijima A, Yoshikawa M, Emoto M, Yamamoto T, Nagayama Y, Kawahata K. Data Acquisition and Management System of LHD. Fusion Science and Technology 2017. [DOI: 10.13182/fst10-a10830] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- H. Nakanishi
- LABCOM Group, National Institute for Fusion Science, Toki 509-5292, Japan
| | - M. Ohsuna
- LABCOM Group, National Institute for Fusion Science, Toki 509-5292, Japan
| | - M. Kojima
- LABCOM Group, National Institute for Fusion Science, Toki 509-5292, Japan
| | - S. Imazu
- LABCOM Group, National Institute for Fusion Science, Toki 509-5292, Japan
| | - M. Nonomura
- LABCOM Group, National Institute for Fusion Science, Toki 509-5292, Japan
| | - M. Hasegawa
- Research Institute for Applied Mechanics, Kyushu University, Kasuga 816-8580, Japan
| | - K. Nakamura
- Research Institute for Applied Mechanics, Kyushu University, Kasuga 816-8580, Japan
| | - A. Higashijima
- Research Institute for Applied Mechanics, Kyushu University, Kasuga 816-8580, Japan
| | - M. Yoshikawa
- Plasma Research Center, University of Tsukuba, Tsukuba 305-8577, Japan
| | - M. Emoto
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - T. Yamamoto
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - Y. Nagayama
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Kawahata
- National Institute for Fusion Science, Toki 509-5292, Japan
| | | |
Collapse
|
16
|
Kumazawa R, Mutoh T, Saito K, Seki T, Kasahara H, Tokitani M, Masuzaki S, Ashikawa N, Nakamura Y, Kubo S, Shimozuma T, Yoshimura Y, Igami H, Takahashi H, Takeiri Y, Tsumori K, Osakabe M, Ikeda K, Nagaoka K, Kaneko O, Goto M, Sato K, Chikaraishi H, Ida K, Nagayama Y, Zhao Y, Kwak JG, Yoon JS. Progress in Steady-State Plasma Operation Using ICRF Heating on LHD. Fusion Science and Technology 2017. [DOI: 10.13182/fst10-a10839] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- R. Kumazawa
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - T. Mutoh
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Saito
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - T. Seki
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - H. Kasahara
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - M. Tokitani
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - S. Masuzaki
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - N. Ashikawa
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - Y. Nakamura
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - S. Kubo
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - T. Shimozuma
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - Y. Yoshimura
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - H. Igami
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - H. Takahashi
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - Y. Takeiri
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Tsumori
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - M. Osakabe
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Ikeda
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Nagaoka
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - O. Kaneko
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - M. Goto
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Sato
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - H. Chikaraishi
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Ida
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - Y. Nagayama
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - Y. Zhao
- Institute of Plasma Physics, Chinese Academy of Science, Hefei 230031, China
| | - J. G. Kwak
- Korea Advanced Energy Research Institute, 150 Deogjin-dong, Yuseong-gu, Daejeon, Republic of Korea
| | - J. S. Yoon
- Korea Advanced Energy Research Institute, 150 Deogjin-dong, Yuseong-gu, Daejeon, Republic of Korea
| | | |
Collapse
|
17
|
Tamura N, Inagaki S, Tokuzawa T, Michael C, Tanaka K, Ida K, Shimozuma T, Kubo S, Itoh K, Nagayama Y, Kawahata K, Sudo S, Komori A. Experimental Study on Nonlocality of Heat Transport in LHD. Fusion Science and Technology 2017. [DOI: 10.13182/fst10-a10799] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- N. Tamura
- National Institute for Fusion Science, 322-6 Oroshi-cho Toki, Gifu 509-5292, Japan
| | - S. Inagaki
- Research Institute for Applied Mechanics, Kyushu University, 6-1 Kasuga-kouen Kasuga Fukuoka 816-8580, Japan
| | - T. Tokuzawa
- National Institute for Fusion Science, 322-6 Oroshi-cho Toki, Gifu 509-5292, Japan
- The Graduate University for Advanced Studies, Hayama Miura-gun Kanagawa 240-0193, Japan
| | - C. Michael
- National Institute for Fusion Science, 322-6 Oroshi-cho Toki, Gifu 509-5292, Japan
| | - K. Tanaka
- National Institute for Fusion Science, 322-6 Oroshi-cho Toki, Gifu 509-5292, Japan
| | - K. Ida
- National Institute for Fusion Science, 322-6 Oroshi-cho Toki, Gifu 509-5292, Japan
- The Graduate University for Advanced Studies, Hayama Miura-gun Kanagawa 240-0193, Japan
| | - T. Shimozuma
- National Institute for Fusion Science, 322-6 Oroshi-cho Toki, Gifu 509-5292, Japan
| | - S. Kubo
- National Institute for Fusion Science, 322-6 Oroshi-cho Toki, Gifu 509-5292, Japan
| | - K. Itoh
- National Institute for Fusion Science, 322-6 Oroshi-cho Toki, Gifu 509-5292, Japan
| | - Y. Nagayama
- National Institute for Fusion Science, 322-6 Oroshi-cho Toki, Gifu 509-5292, Japan
- The Graduate University for Advanced Studies, Hayama Miura-gun Kanagawa 240-0193, Japan
| | - K. Kawahata
- National Institute for Fusion Science, 322-6 Oroshi-cho Toki, Gifu 509-5292, Japan
- The Graduate University for Advanced Studies, Hayama Miura-gun Kanagawa 240-0193, Japan
| | - S. Sudo
- National Institute for Fusion Science, 322-6 Oroshi-cho Toki, Gifu 509-5292, Japan
- The Graduate University for Advanced Studies, Hayama Miura-gun Kanagawa 240-0193, Japan
| | - A. Komori
- National Institute for Fusion Science, 322-6 Oroshi-cho Toki, Gifu 509-5292, Japan
- The Graduate University for Advanced Studies, Hayama Miura-gun Kanagawa 240-0193, Japan
| | | |
Collapse
|
18
|
Komori A, Yamada H, Imagawa S, Kaneko O, Kawahata K, Mutoh K, Ohyabu N, Takeiri Y, Ida K, Mito T, Nagayama Y, Sakakibara S, Sakamoto R, Shimozuma T, Watanabe KY, Motojima O. Goal and Achievements of Large Helical Device Project. Fusion Science and Technology 2017. [DOI: 10.13182/fst58-1] [Citation(s) in RCA: 112] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- A. Komori
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - H. Yamada
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - S. Imagawa
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - O. Kaneko
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Kawahata
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Mutoh
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - N. Ohyabu
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - Y. Takeiri
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Ida
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - T. Mito
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - Y. Nagayama
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - S. Sakakibara
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - R. Sakamoto
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - T. Shimozuma
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Y. Watanabe
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - O Motojima
- National Institute for Fusion Science, Toki 509-5292, Japan
| | | |
Collapse
|
19
|
Seki T, Mutoh T, Kumazawa R, Saito K, Nakamura Y, Sakamoto M, Watanabe T, Kubo S, Shimozuma T, Yoshimura Y, Igami H, Ohkubo K, Takeiri Y, Oka Y, Tsumori K, Osakabe M, Ikeda K, Nagaoka K, Kaneko O, Miyazawa J, Morita S, Narihara K, Shoji M, Masuzaki S, Goto M, Morisaki T, Peterson BJ, Sato K, Tokuzawa T, Ashikawa N, Nishimura K, Funaba H, Chikaraishi H, Takeuchi N, Notake T, Ogawa H, Torii Y, Shimpo F, Nomura G, Yokota M, Takahashi C, Kato A, Takase Y, Kasahara H, Ichimura M, Higaki H, Zhao YP, Kwak JG, Yamada H, Kawahata K, Ohyabu N, Ida K, Nagayama Y, Noda N, Watari T, Komori A, Sudo S, Motojima O. Study of Long-Pulse Plasma Experiment Using ICRF Heating in LHD. Fusion Science and Technology 2017. [DOI: 10.13182/fst06-a1234] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. Seki
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - T. Mutoh
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - R. Kumazawa
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Saito
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - Y. Nakamura
- National Institute for Fusion Science, Toki 509-5292, Japan
| | | | - T. Watanabe
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - S. Kubo
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - T. Shimozuma
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - Y. Yoshimura
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - H. Igami
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Ohkubo
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - Y. Takeiri
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - Y. Oka
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Tsumori
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - M. Osakabe
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Ikeda
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Nagaoka
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - O. Kaneko
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - J. Miyazawa
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - S. Morita
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Narihara
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - M. Shoji
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - S. Masuzaki
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - M. Goto
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - T. Morisaki
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - B. J. Peterson
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Sato
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - T. Tokuzawa
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - N. Ashikawa
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Nishimura
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - H. Funaba
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - H. Chikaraishi
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - N. Takeuchi
- Nagoya University, Faculty of Engineering, Nagoya 464-8601, Japan
| | - T. Notake
- Nagoya University, Faculty of Engineering, Nagoya 464-8601, Japan
| | - H. Ogawa
- Graduate University for Advanced Studies, Hayama 240-0162, Japan
| | - Y. Torii
- Kyoto University, Institute of Advanced Energy, Uji 611-0011, Japan
| | - F. Shimpo
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - G. Nomura
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - M. Yokota
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - C. Takahashi
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - A. Kato
- National Institute for Fusion Science, Toki 509-5292, Japan
| | | | | | | | - H. Higaki
- University of Tsukuba, Tsukuba, Japan
| | - Y. P. Zhao
- Institute of Plasma Physics, Academia Sinica, Hefei 230031, P.R. China
| | - J. G. Kwak
- Korea Atomic Energy Research Institute, Daejeon 305-600, Korea Rep
| | - H. Yamada
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Kawahata
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - N. Ohyabu
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Ida
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - Y. Nagayama
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - N. Noda
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - T. Watari
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - A. Komori
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - S. Sudo
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - O. Motojima
- National Institute for Fusion Science, Toki 509-5292, Japan
| | | |
Collapse
|
20
|
Yamada H, Kawahata K, Mutoh T, Ohyabu N, Takeiri Y, Imagawa S, Ida K, Mito T, Nagayama Y, Shimozuma T, Watanabe KY, Kobayashi M, Kumazawa R, Masuzaki S, Morisaki T, Miyazawa J, Nagaoka K, Narushima Y, Sakakibara S, Sakamoto R, Toi K, Yokoyama M, Kaneko O, Komori A, Motojima O. Progress in the Integrated Development of the Helical System. Fusion Science and Technology 2017. [DOI: 10.13182/fst10-a10789] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- H. Yamada
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Kawahata
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - T. Mutoh
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - N. Ohyabu
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - Y. Takeiri
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - S. Imagawa
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Ida
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - T. Mito
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - Y. Nagayama
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - T. Shimozuma
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Y. Watanabe
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - M. Kobayashi
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - R. Kumazawa
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - S. Masuzaki
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - T. Morisaki
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - J. Miyazawa
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Nagaoka
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - Y. Narushima
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - S. Sakakibara
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - R. Sakamoto
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Toi
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - M. Yokoyama
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - O. Kaneko
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - A. Komori
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - O. Motojima
- National Institute for Fusion Science, Toki 509-5292, Japan
| | | |
Collapse
|
21
|
Motojima O, Yamada H, Komori A, Watanabe KY, Mutoh T, Takeiri Y, Ida K, Akiyama T, Asakura N, Ashikawa N, Chikaraishi H, Cooper WA, Emoto M, Fujita T, Fujiwara M, Funaba H, Goncharov P, Goto M, Hamada Y, Higashijima S, Hino T, Hoshino M, Ichimura M, Idei H, Ido T, Ikeda K, Imagawa S, Inagaki S, Isayama A, Isobe M, Itoh T, Itoh K, Kado S, Kalinina D, Kaneba T, Kaneko O, Kato D, Kato T, Kawahata K, Kawashima H, Kawazome H, Kobuchi T, Kondo K, Kubo S, Kumazawa R, Lyon JF, Maekawa R, Mase A, Masuzaki S, Mito T, Matsuoka K, Miura Y, Miyazawa J, More R, Morisaki T, Morita S, Murakami I, Murakami S, Mutoh S, Nagaoka K, Nagasaki K, Nagayama Y, Nakamura Y, Nakanishi H, Narihara K, Narushima Y, Nishimura H, Nishimura K, Nishiura M, Nishizawa A, Noda N, Notake T, Nozato H, Ohdachi S, Ohkubo K, Ohyabu N, Oyama N, Oka Y, Okada H, Osakabe M, Ozaki T, Peterson BJ, Sagara A, Saida T, Saito K, Sakakibara S, Sakamoto M, Sakamoto R, Sasao M, Sato K, Seki T, Shimozuma T, Shoji M, Sudo S, Takagi S, Takahashi Y, Takase Y, Takenaga H, Takeuchi N, Tamura N, Tanaka K, Tanaka M, Toi K, Takahata K, Tokuzawa T, Torii Y, Tsumori K, Watanabe F, Watanabe M, Watanabe T, Watari T, Yamada I, Yamada S, Yamaguchi T, Yamamoto S, Yamazaki K, Yanagi N, Yokoyama M, Yoshida N, Yoshimura S, Yoshimura Y, Yoshinuma M. Review on the Progress of the LHD Experiment. Fusion Science and Technology 2017. [DOI: 10.13182/fst04-a535] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- O. Motojima
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - H. Yamada
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - A. Komori
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - K. Y. Watanabe
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - T. Mutoh
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - Y. Takeiri
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - K. Ida
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - T. Akiyama
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - N. Asakura
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - N. Ashikawa
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - H. Chikaraishi
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - W. A. Cooper
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - M. Emoto
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - T. Fujita
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - M. Fujiwara
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - H. Funaba
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - P. Goncharov
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - M. Goto
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - Y. Hamada
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - S. Higashijima
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - T. Hino
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - M. Hoshino
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - M. Ichimura
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - H. Idei
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - T. Ido
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - K. Ikeda
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - S. Imagawa
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - S. Inagaki
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - A. Isayama
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - M. Isobe
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - T. Itoh
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - K. Itoh
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - S. Kado
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - D. Kalinina
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - T. Kaneba
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - O. Kaneko
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - D. Kato
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - T. Kato
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - K. Kawahata
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - H. Kawashima
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - H. Kawazome
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - T. Kobuchi
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - K. Kondo
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - S. Kubo
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - R. Kumazawa
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - J. F. Lyon
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - R. Maekawa
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - A. Mase
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - S. Masuzaki
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - T. Mito
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - K. Matsuoka
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - Y. Miura
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - J. Miyazawa
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - R. More
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - T. Morisaki
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - S. Morita
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - I. Murakami
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - S. Murakami
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - S. Mutoh
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - K. Nagaoka
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - K. Nagasaki
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - Y. Nagayama
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - Y. Nakamura
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - H. Nakanishi
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - K. Narihara
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - Y. Narushima
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - H. Nishimura
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - K. Nishimura
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - M. Nishiura
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - A. Nishizawa
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - N. Noda
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - T. Notake
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - H. Nozato
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - S. Ohdachi
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - K. Ohkubo
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - N. Ohyabu
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - N. Oyama
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - Y. Oka
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - H. Okada
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - M. Osakabe
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - T. Ozaki
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - B. J. Peterson
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - A. Sagara
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - T. Saida
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - K. Saito
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - S. Sakakibara
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - M. Sakamoto
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - R. Sakamoto
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - M. Sasao
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - K. Sato
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - T. Seki
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - T. Shimozuma
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - M. Shoji
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - S. Sudo
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - S. Takagi
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - Y. Takahashi
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - Y. Takase
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - H. Takenaga
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - N. Takeuchi
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - N. Tamura
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - K. Tanaka
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - M. Tanaka
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - K. Toi
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - K. Takahata
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - T. Tokuzawa
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - Y. Torii
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - K. Tsumori
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - F. Watanabe
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - M. Watanabe
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - T. Watanabe
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - T. Watari
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - I. Yamada
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - S. Yamada
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - T. Yamaguchi
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - S. Yamamoto
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - K. Yamazaki
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - N. Yanagi
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - M. Yokoyama
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - N. Yoshida
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - S. Yoshimura
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - Y. Yoshimura
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - M. Yoshinuma
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| |
Collapse
|
22
|
Nagayama Y, Ito N, Kuwahara D, Tsuchiya H, Yamaguchi S. Development of 2-D horn-antenna millimeter-wave imaging device (HMID) for the plasma diagnostics. Rev Sci Instrum 2017; 88:044703. [PMID: 28456234 DOI: 10.1063/1.4980150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The two-dimensional (2-D) Horn-antenna Millimeter-wave Imaging Device (HMID) has been developed for the O-mode Microwave Imaging Reflectometry (O-MIR) in the Large Helical Device (LHD). The detectable frequency range of the HMID is 23-33 GHz, which corresponds to the cutoff electron density of 0.8-1.5 × 1019 m-3 in the O-MIR. The HMID is a 2-D imaging device that improves on the horn-antenna mixer array, which had been developed for the X-mode MIR in the LHD. In the HMID, the signal (RF) wave from the horn antenna is transmitted to the microstrip line by the finline transmitter, and this is mixed by the double-balanced-mixer with the local oscillation wave that is fed by a coaxial cable. By using the HMID, the MIR optical system can be significantly simplified.
Collapse
Affiliation(s)
- Y Nagayama
- National Institute for Fusion Science, National Institute for Natural Sciences, Toki 509-5292, Japan
| | - N Ito
- National Institute of Technology, Ube College, Ube 755-8555, Japan
| | - D Kuwahara
- Tokyo University of Agriculture and Technology, Koganei 184-8588, Japan
| | - H Tsuchiya
- National Institute for Fusion Science, National Institute for Natural Sciences, Toki 509-5292, Japan
| | | |
Collapse
|
23
|
Wang X, Kanno S, Kohagura J, Yoshikawa M, Shima Y, Nakashima Y, Sakamoto M, Oki K, Imai T, Ichimura M, Nagayama Y, Kuwahara D, Mase A. A Novel Frequency-Multiplied Interferometer System with 1-D Horn-Antenna Mixer Array in the GAMMA 10/PDX End Divertor Module. Fusion Science and Technology 2017. [DOI: 10.13182/fst14-877] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- X. Wang
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki, Japan
| | - S. Kanno
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki, Japan
| | - J. Kohagura
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki, Japan
| | - M. Yoshikawa
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki, Japan
| | - Y. Shima
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki, Japan
| | - Y. Nakashima
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki, Japan
| | - M. Sakamoto
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki, Japan
| | - K. Oki
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki, Japan
| | - T. Imai
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki, Japan
| | - M. Ichimura
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki, Japan
| | - Y. Nagayama
- National Institute for Fusion Science, Toki, Gifu, Japan
| | - D. Kuwahara
- Tokyo University of Agriculture and Technology, Koganei, Tokyo, Japan
| | - A. Mase
- Kyushu University, KASTEC, Kasuga, Fukuoka, Japan
| |
Collapse
|
24
|
Abstract
Hemoglobin (Hb) Kansas is an inherited Hb variant with a low oxygen affinity that is associated with low oxygen saturation on pulse oximetry (SpO2). It leads to asymptomatic cyanosis. Patients with Hb Kansas do not require any specific treatment and the prognosis is good. In patients with unexplained cyanosis, we should thus consider Hb variants, including Hb Kansas and avoid unnecessary investigations and managements. We herein report the case of 65-year-old woman with Hb Kansas and review five other cases (three lineages) that have been reported in Japan.
Collapse
Affiliation(s)
- Yoshikuni Nagayama
- Department of Internal Medicine IV, Teikyo University School of Medicine, University Hospital, Mizonokuchi, Japan
| | | | | | | |
Collapse
|
25
|
Kohagura J, Yoshikawa M, Wang X, Kuwahara D, Ito N, Nagayama Y, Shima Y, Nojiri K, Sakamoto M, Nakashima Y, Mase A. A 60-GHz interferometer with a local oscillator integrated antenna array for divertor simulation experiments on GAMMA 10/PDX. Rev Sci Instrum 2016; 87:11E127. [PMID: 27910479 DOI: 10.1063/1.4961292] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In conventional multichannel/imaging microwave diagnostics of interferometry, reflectometry, and electron cyclotron emission measurements, a local oscillator (LO) signal is commonly supplied to a receiver array via irradiation using LO optics. In this work, we present a 60-GHz interferometer with a new eight-channel receiver array, called a local oscillator integrated antenna array (LIA). An outstanding feature of LIA is that it incorporates a frequency quadrupler integrated circuit for LO supply to each channel. This enables simple and uniform LO supply to the receiver array using only a 15-GHz LO source and a coaxial cable transmission line instead of using an expensive 60-GHz source, LO optics, and a waveguide transmission line. The new interferometer system is first applied to measure electron line-averaged density inside the divertor simulation experimental module (D-module) on GAMMA 10/PDX tandem mirror device.
Collapse
Affiliation(s)
- J Kohagura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - M Yoshikawa
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - X Wang
- Saitama University, Saitama 338-8570, Japan
| | - D Kuwahara
- Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan
| | - N Ito
- National Institute of Technology, Ube College, Ube, Yamaguchi 755-8555, Japan
| | - Y Nagayama
- National Institute of Fusion Science, Toki, Gifu 509-5292, Japan
| | - Y Shima
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - K Nojiri
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - M Sakamoto
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y Nakashima
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - A Mase
- Kyushu University, Kasuga, Fukuoka 816-8580, Japan
| |
Collapse
|
26
|
Nampei A, Nagayama Y, Tsuboi H. FRI0208 Abatacept Therapy Combined with Tacrolimus for Rheumatoid Arthritis Patients Shows Superior Efficacy than Abatacept Therapy without Tacrolimus. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.2073] [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: 11/03/2022]
|
27
|
Braun GS, Nagayama Y, Maruta Y, Heymann F, van Roeyen CR, Klinkhammer BM, Boor P, Villa L, Salant DJ, Raffetseder U, Rose-John S, Ostendorf T, Floege J. IL-6 Trans-Signaling Drives Murine Crescentic GN. J Am Soc Nephrol 2015; 27:132-42. [PMID: 26041841 DOI: 10.1681/asn.2014111147] [Citation(s) in RCA: 36] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Accepted: 03/20/2015] [Indexed: 01/07/2023] Open
Abstract
The role of IL-6 signaling in renal diseases remains controversial, with data describing both anti-inflammatory and proinflammatory effects. IL-6 can act via classic signaling, engaging its two membrane receptors gp130 and IL-6 receptor (IL-6R). Alternatively, IL-6 trans-signaling requires soluble IL-6R (sIL-6R) to act on IL-6R-negative cells that express gp130. Here, we characterize the role of both pathways in crescentic nephritis. Patients with crescentic nephritis had significantly elevated levels of IL-6 in both serum and urine. Similarly, nephrotoxic serum-induced nephritis (NTN) in BALB/c mice was associated with elevated serum IL-6 levels. Levels of serum sIL-6R and renal downstream signals of IL-6 (phosphorylated signal transducer and activator of transcription 3, suppressor of cytokine signaling 3) increased over time in this model. Simultaneous inhibition of both IL-6 signaling pathways using anti-IL-6 antibody did not have a significant impact on NTN severity. In contrast, specific inhibition of trans-signaling using recombinant sgp130Fc resulted in milder disease. Vice versa, specific activation of trans-signaling using a recombinant IL-6-sIL-6R fusion molecule (Hyper-IL-6) significantly aggravated NTN and led to increased systolic BP in NTN mice. This correlated with increased renal mRNA synthesis of the Th17 cell cytokine IL-17A and decreased synthesis of resistin-like alpha (RELMalpha)-encoding mRNA, a surrogate marker of lesion-mitigating M2 macrophage subtypes. Collectively, our data suggest a central role for IL-6 trans-signaling in crescentic nephritis and offer options for more effective and specific therapeutic interventions in the IL-6 system.
Collapse
Affiliation(s)
- Gerald S Braun
- Division of Nephrology and Immunology, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University, Aachen Germany; Institute of Biochemistry and Molecular Biology, RWTH Aachen University, Aachen, Germany;
| | - Yoshikuni Nagayama
- Division of Nephrology and Immunology, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University, Aachen Germany; Division of Nephrology, Showa University Fujigaoka Hospital, Yokohama, Japan
| | - Yuichi Maruta
- Division of Nephrology and Immunology, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University, Aachen Germany; Division of Nephrology, Showa University Fujigaoka Hospital, Yokohama, Japan
| | - Felix Heymann
- Division of Gastroenterology, Metabolic Diseases and Intensive Care, RWTH Aachen University, Aachen, Germany
| | - Claudia R van Roeyen
- Division of Nephrology and Immunology, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University, Aachen Germany
| | - Barbara M Klinkhammer
- Division of Nephrology and Immunology, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University, Aachen Germany; Institute of Pathology, RWTH Aachen University, Aachen, Germany
| | - Peter Boor
- Division of Nephrology and Immunology, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University, Aachen Germany; Institute of Pathology, RWTH Aachen University, Aachen, Germany; Institute of Molecular Biomedicine, Comenius University, Bratislava, Slovakia
| | - Luigi Villa
- Division of Nephrology and Immunology, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University, Aachen Germany
| | - David J Salant
- Department of Medicine, Section of Nephrology, Boston University School of Medicine, Boston, MA; and
| | - Ute Raffetseder
- Division of Nephrology and Immunology, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University, Aachen Germany
| | - Stefan Rose-John
- Institute of Biochemistry, Christian-Albrechts-University, Kiel, Germany
| | - Tammo Ostendorf
- Division of Nephrology and Immunology, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University, Aachen Germany
| | - Jürgen Floege
- Division of Nephrology and Immunology, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University, Aachen Germany
| |
Collapse
|
28
|
Nagayama Y, Takayasu M, Wakabayashi A, Takayasu H, Takano Y, Inoue Y, Yoshimura A. New onset of immunoglobulin G4-related disease in a patient with relapsing polychondritis. Mod Rheumatol 2015; 27:898-900. [PMID: 25867227 DOI: 10.3109/14397595.2015.1040610] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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: 12/24/2022]
Abstract
Relapsing polychondritis (RP) is a rare systemic autoimmune disorder characterized by the episodic and progressive deterioration of cartilage inflammation. Approximately 30% patients with RP have concurrent disease. However, there have been no previous reports of RP complicated by immunoglobulin G4-related disease (IgG4-RD). Here we report the case of a 67-year-old male who developed IgG4-RD approximately 20 years after RP diagnosis. The association between IgG4-RD and RP remains unclear.
Collapse
Affiliation(s)
- Yoshikuni Nagayama
- a Department of Internal Medicine IV , Teikyo University School of Medicine, University Hospital , Mizonokuchi, Kawasaki , Japan
| | - Mamiko Takayasu
- a Department of Internal Medicine IV , Teikyo University School of Medicine, University Hospital , Mizonokuchi, Kawasaki , Japan
| | - Aya Wakabayashi
- b Division of Respiratory Medicine, Department of Medicine , Showa University Fujigaoka Hospital , Yokohama , Japan
| | - Hiromi Takayasu
- b Division of Respiratory Medicine, Department of Medicine , Showa University Fujigaoka Hospital , Yokohama , Japan
| | - Yuichi Takano
- c Division of Gastroenterology, Department of Medicine , Showa University Fujigaoka Hospital , Yokohama , Japan
| | - Yoshihiko Inoue
- a Department of Internal Medicine IV , Teikyo University School of Medicine, University Hospital , Mizonokuchi, Kawasaki , Japan
| | - Ashio Yoshimura
- a Department of Internal Medicine IV , Teikyo University School of Medicine, University Hospital , Mizonokuchi, Kawasaki , Japan
| |
Collapse
|
29
|
Nishiwaki H, Hasegawa T, Nagayama Y, Kaneshima N, Takayasu M, Hirose M, Komukai D, Inoue Y, Koiwa F, Yoshimura A. Absence of mesangial C1q deposition is associated with resolution of proteinuria and hematuria after tonsillectomy plus steroid pulse therapy for immunoglobulin a nephropathy. Nephron Clin Pract 2015; 130:1-7. [PMID: 25896237 DOI: 10.1159/000381217] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Accepted: 02/17/2015] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION AND AIMS Deposition of C1q occurs in 0 to 45% of patients with IgAN. In order to identify whether mesangial C1q deposition in IgAN is a novel marker for the response to tonsillectomy plus steroid pulse therapy (TSP), we studied the association between mesangial C1q deposition in IgAN and the remission rate after TSP therapy for IgAN. METHODS We conducted a retrospective cohort study at a single Japanese center. We analyzed data on 110 patients diagnosed with IgA nephropathy who received TSP between January 2003 and December 2012. Positive C1q findings were defined as diffuse mesangial C1q deposition. The study outcome was the resolution of abnormal urinary findings and was defined as negative proteinuria and negative occult blood 1 year after steroid pulse therapy. RESULTS In all enrolled cases, 69 patients (62.7%) went into remission. Ten out of 24 (41.7%) C1q-positive patients experienced remission, and 59 out of 86 (68.6%) C1q-negative patients experienced remission. Multiple logistic regression model analysis showed that the absence of C1q deposition increased the odds ratio for remission (odds ratio 4.41; 95% confidence interval 1.33-15.75, p = 0.017). CONCLUSIONS These results suggest that the absence of diffuse C1q deposition in the mesangial area of the glomerulus in patients with IgA nephropathy is a positive predictive sign for a response to TSP and is associated with the resolution of urinary abnormalities 1 year after TSP.
Collapse
Affiliation(s)
- Hiroki Nishiwaki
- Division of Nephrology, Showa University Fujigaoka Hospital, Yokohama, Japan
| | | | | | | | | | | | | | | | | | | |
Collapse
|
30
|
Takano Y, Fukuda K, Takayasu H, Shinmura K, Koizumi G, Sasai M, Nagayama Y, Kawamo M, Yasuda T, Watanabe K, Sasaki J, Hayashi M, Yamamura E, Maruoka N, Nagahama M, Takahashi H. Liver abscessation and multiple septic pulmonary emboli associated with Lemierre's syndrome: a case report. BMC Res Notes 2015; 8:65. [PMID: 25889618 PMCID: PMC4351970 DOI: 10.1186/s13104-015-1028-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2014] [Accepted: 02/23/2015] [Indexed: 11/10/2022] Open
Abstract
Background In Lemierre’s syndrome, patients first exhibit pharyngitis and peritonsillar abscessation, followed by the development of anaerobic bacterial (usually Fusobacterium necrophorum) septicemia and metastatic infections throughout the body. However, these infections rarely affect the liver. We describe a case of Lemierre’s syndrome, in which the first disease manifestation was liver abscess, for drawing attention of emergency physicians to this rare but fatal disease. Case presentation A 28-year-old Asian ethnicity Filipino male, who was previously healthy, entered the emergency department presenting with fever and pharyngeal pain that had persisted for 5 days. Contrast-enhanced abdominal computed tomography revealed a 3-cm area of low density in segment 6 of the liver, consistent with an abscess. Chest computed tomography also revealed that multiple nodes in both lungs were enlarged, and septic emboli were suspected. The patient was hospitalized and antibiotic treatment was initiated. On hospital day 6, blood culture results confirmed Fusobacterium necrophorum septicemia. The patient was diagnosed with Lemierre’s syndrome, as pharyngitis developed into bacteremia associated with hepatic and pulmonary lesions. The patient’s condition improved with antibiotics and he was discharged following three weeks of treatment in the hospital. Conclusion With the widespread use of antibiotics, Lemierre’s syndrome is rarely encountered anymore, but it can be fatal if not properly diagnosed. It is a crucial differential diagnosis in young patients exhibiting septicemia or multiple metastatic infection of unknown origin.
Collapse
Affiliation(s)
- Yuichi Takano
- Department of Emergency and Critical Care Medicine, Showa University Fujigaoka Hospital, 1-30 Fujigaoka, Aoba-ku, Yokohama-shi, Kanagawa, 227-8501, Japan. .,Division of Gastroenterology, Department of Internal Medicine, Showa University Fujigaoka Hospital, Yokohama, Kanagawa, Japan.
| | - Kenichiro Fukuda
- Department of Emergency and Critical Care Medicine, Showa University Fujigaoka Hospital, 1-30 Fujigaoka, Aoba-ku, Yokohama-shi, Kanagawa, 227-8501, Japan.
| | - Hiromi Takayasu
- Department of Emergency and Critical Care Medicine, Showa University Fujigaoka Hospital, 1-30 Fujigaoka, Aoba-ku, Yokohama-shi, Kanagawa, 227-8501, Japan.
| | - Kazuki Shinmura
- Department of Emergency and Critical Care Medicine, Showa University Fujigaoka Hospital, 1-30 Fujigaoka, Aoba-ku, Yokohama-shi, Kanagawa, 227-8501, Japan.
| | - Go Koizumi
- Department of Emergency and Critical Care Medicine, Showa University Fujigaoka Hospital, 1-30 Fujigaoka, Aoba-ku, Yokohama-shi, Kanagawa, 227-8501, Japan.
| | - Masahiro Sasai
- Department of Emergency and Critical Care Medicine, Showa University Fujigaoka Hospital, 1-30 Fujigaoka, Aoba-ku, Yokohama-shi, Kanagawa, 227-8501, Japan.
| | - Yoshikuni Nagayama
- Department of Emergency and Critical Care Medicine, Showa University Fujigaoka Hospital, 1-30 Fujigaoka, Aoba-ku, Yokohama-shi, Kanagawa, 227-8501, Japan.
| | - Michiari Kawamo
- Department of Emergency and Critical Care Medicine, Showa University Fujigaoka Hospital, 1-30 Fujigaoka, Aoba-ku, Yokohama-shi, Kanagawa, 227-8501, Japan.
| | - Tomohiro Yasuda
- Department of Emergency and Critical Care Medicine, Showa University Fujigaoka Hospital, 1-30 Fujigaoka, Aoba-ku, Yokohama-shi, Kanagawa, 227-8501, Japan.
| | - Kazumasa Watanabe
- Department of Emergency and Critical Care Medicine, Showa University Fujigaoka Hospital, 1-30 Fujigaoka, Aoba-ku, Yokohama-shi, Kanagawa, 227-8501, Japan.
| | - Jun Sasaki
- Department of Emergency and Critical Care Medicine, Showa University Fujigaoka Hospital, 1-30 Fujigaoka, Aoba-ku, Yokohama-shi, Kanagawa, 227-8501, Japan.
| | - Munetaka Hayashi
- Department of Emergency and Critical Care Medicine, Showa University Fujigaoka Hospital, 1-30 Fujigaoka, Aoba-ku, Yokohama-shi, Kanagawa, 227-8501, Japan.
| | - Eiichi Yamamura
- Division of Gastroenterology, Department of Internal Medicine, Showa University Fujigaoka Hospital, Yokohama, Kanagawa, Japan.
| | - Naotaka Maruoka
- Division of Gastroenterology, Department of Internal Medicine, Showa University Fujigaoka Hospital, Yokohama, Kanagawa, Japan.
| | - Masatsugu Nagahama
- Division of Gastroenterology, Department of Internal Medicine, Showa University Fujigaoka Hospital, Yokohama, Kanagawa, Japan.
| | - Hiroshi Takahashi
- Division of Gastroenterology, Department of Internal Medicine, Showa University Fujigaoka Hospital, Yokohama, Kanagawa, Japan.
| |
Collapse
|
31
|
Kurashige T, Shimamura M, Yasui K, Mitsutake N, Matsuse M, Nakashima M, Minami S, Eguchi S, Nagayama Y. Studies on expression of aldehyde dehydrogenase in normal and cancerous tissues of thyroids. Horm Metab Res 2015; 47:194-9. [PMID: 25181420 DOI: 10.1055/s-0034-1387770] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [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: 10/24/2022]
Abstract
Recently published articles have reported the controversial data regarding expression of aldehyde dehydrogenase isozyme 1A1 (ALDH1A1), a potential candidate marker for normal and cancer stem cells (CSCs), in thyroid tissues. These data prompted us to re-evaluate expression of ALDH1A1 in normal and cancerous thyroid tissues by 2 different means. The first method was immunohistochemistry with 2 different anti-ALDH1A1 antibodies from distinct companies. Following validating the integrity of these 2 antibodies by Western blotting with ALDH-expressing and nonexpressing cancer cell lines and immunohistochemistry with breast and colon tissues, we report here significant and comparable expression of ALDH1A1 in both normal and cancerous thyroid tissues with both antibodies. Next, relative expression levels of ALDH isozymes were evaluated by reverse transcription-polymerase chain reaction (RT-PCR), revealing that ALDH1A1 was the most highly expressed isozyme followed by ALDH9A1 and relative expression patterns of isozymes were very similar in normal and cancerous tissues. All these data demonstrate that thyroid cells of normal and cancer origins do express ALDH1A1 and to a lesser extent 9A1. Further study will be necessary to study functional significance of ALDH1A1 in the function and behaviors of thyroid normal and cancer stem cells.
Collapse
Affiliation(s)
- T Kurashige
- Department of Molecular Medicine, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - M Shimamura
- Department of Molecular Medicine, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - K Yasui
- Department of Molecular Medicine, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - N Mitsutake
- Department of Radiation Medical Science, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - M Matsuse
- Department of Radiation Medical Science, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - M Nakashima
- Department of Tumor and Diagnostic Pathology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - S Minami
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - S Eguchi
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Y Nagayama
- Department of Molecular Medicine, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| |
Collapse
|
32
|
Kogi Y, Higashi T, Matsukawa S, Mase A, Kohagura J, Nagayama Y, Kawahata K, Kuwahara D, Yoshikawa M. Validation experiment of a numerically processed millimeter-wave interferometer in a laboratory. Rev Sci Instrum 2014; 85:11D411. [PMID: 25430174 DOI: 10.1063/1.4893430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We propose a new interferometer system for density profile measurements. This system produces multiple measurement chords by a leaky-wave antenna driven by multiple frequency inputs. The proposed system was validated in laboratory evaluation experiments. We confirmed that the interferometer generates a clear image of a Teflon plate as well as the phase shift corresponding to the plate thickness. In another experiment, we confirmed that quasi-optical mirrors can produce multiple measurement chords; however, the finite spot size of the probe beam degrades the sharpness of the resulting image.
Collapse
Affiliation(s)
- Y Kogi
- Department of Information Electronics, Fukuoka Institute of Technology, Fukuoka 811-0295, Japan
| | - T Higashi
- Department of Information Electronics, Fukuoka Institute of Technology, Fukuoka 811-0295, Japan
| | - S Matsukawa
- Department of Information Electronics, Fukuoka Institute of Technology, Fukuoka 811-0295, Japan
| | - A Mase
- Art, Science and Technology Center for Cooperative Research, Kyushu University, Kasuga, Fukuoka 816-0811, Japan
| | - J Kohagura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y Nagayama
- National Institute for Fusion Science, Toki, Gifu 509-5202, Japan
| | - K Kawahata
- National Institute for Fusion Science, Toki, Gifu 509-5202, Japan
| | - D Kuwahara
- Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan
| | - M Yoshikawa
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| |
Collapse
|
33
|
Kuwahara D, Ito N, Nagayama Y, Yoshinaga T, Yamaguchi S, Yoshikawa M, Kohagura J, Sugito S, Kogi Y, Mase A. Development of horn antenna mixer array with internal local oscillator module for microwave imaging diagnostics. Rev Sci Instrum 2014; 85:11D805. [PMID: 25430218 DOI: 10.1063/1.4885471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A new antenna array is proposed in order to improve the sensitivity and complexity of microwave imaging diagnostics systems such as a microwave imaging reflectometry, a microwave imaging interferometer, and an electron cyclotron emission imaging. The antenna array consists of five elements: a horn antenna, a waveguide-to-microstrip line transition, a mixer, a local oscillation (LO) module, and an intermediate frequency amplifier. By using an LO module, the LO optics can be removed, and the supplied LO power to each element can be equalized. We report details of the antenna array and characteristics of a prototype antenna array.
Collapse
Affiliation(s)
- D Kuwahara
- Department of Mechanical Systems Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan
| | - N Ito
- Department of Intelligent System Engineering, Ube National College of Technology, Ube, Yamaguchi 755-8555, Japan
| | - Y Nagayama
- Department of Helical Plasma Research, National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - T Yoshinaga
- Department of Applied Physics, National Defense Academy, Yokosuka, Kanagawa 239-0811, Japan
| | - S Yamaguchi
- Department of Pure and Applied Physics, Kansai University, Suita, Osaka 564-8680, Japan
| | - M Yoshikawa
- Graduate School of Pure and Applied Science, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - J Kohagura
- Graduate School of Pure and Applied Science, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - S Sugito
- Equipment Development Center, Institute for Molecular Science, Okazaki, Aichi 444-8585, Japan
| | - Y Kogi
- Department of Information Electronics, Fukuoka Institute of Technology, Fukuoka, Fukuoka 811-0295, Japan
| | - A Mase
- Art, Science and Technology Center for Cooperative Research, Kyusyu University, Kasuga, Fukuoka 816-8580, Japan
| |
Collapse
|
34
|
Ito M, Nagayama Y, Maruta Y, Nishiwaki H, Yoshimura A. Chilaiditi syndrome in a peritoneal dialysis patient. Kidney Int 2014; 86:214. [DOI: 10.1038/ki.2013.486] [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: 11/09/2022]
|
35
|
Nagayama Y, Braun GS, Jakobs CM, Maruta Y, van Roeyen CR, Klinkhammer BM, Boor P, Villa L, Raffetseder U, Trautwein C, Görtz D, Müller-Newen G, Ostendorf T, Floege J. Gp130-dependent signaling in the podocyte. Am J Physiol Renal Physiol 2014; 307:F346-55. [PMID: 24899055 DOI: 10.1152/ajprenal.00620.2013] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Renal inflammation, in particular glomerular, is often characterized by increased IL-6 levels. The in vivo relevance of IL-6 signaling in glomerular podocytes, which play central roles in most glomerular diseases, is unknown. Here, we show that in normal mice, podocytes express gp130, the common signal-transducing receptor subunit of the IL-6 family of cytokines. Following systemic IL-6 or LPS injection in mice, podocyte IL-6 signaling was evidenced by downstream STAT3 phosphorylation. Next, we generated mice deficient for gp130 in podocytes. Expectedly, these mice exhibited abrogated IL-6 downstream signaling in podocytes. At the age of 40 wk, they did not show spontaneous renal pathology or abnormal renal function. The mice were then challenged using two LPS injury models as well as nephrotoxic serum to induce crescentic nephritis. Under all conditions, circulating IL-6 levels increased markedly and the mice developed the pathological hallmarks of the corresponding injury models such as proteinuria and development of glomerular crescents, respectively. However, despite the capacity of normal podocytes to transduce IL-6 family signals downstream, there were no significant differences between mice bearing the podocyte-specific gp130 deletion and their control littermates in any of these models. In conclusion, under the different conditions tested, gp130 signaling was not a critical component of the (patho-)biology of the podocyte in vivo.
Collapse
Affiliation(s)
- Yoshikuni Nagayama
- Division of Nephrology and Immunology, RWTH Aachen University, Aachen Germany; Division of Nephrology, Showa University Fujigaoka Hospital, Yokohama, Japan
| | - Gerald S Braun
- Division of Nephrology and Immunology, RWTH Aachen University, Aachen Germany; Institute of Biochemistry and Molecular Biology, RWTH Aachen University, Aachen, Germany;
| | - Christina M Jakobs
- Division of Nephrology and Immunology, RWTH Aachen University, Aachen Germany
| | - Yuichi Maruta
- Division of Nephrology and Immunology, RWTH Aachen University, Aachen Germany; Division of Nephrology, Showa University Fujigaoka Hospital, Yokohama, Japan
| | | | | | - Peter Boor
- Division of Nephrology and Immunology, RWTH Aachen University, Aachen Germany; Institute of Pathology, RWTH Aachen University, Aachen, Germany; Institute of Molecular Biomedicine, Comenius University, Bratislava, Slovakia; and
| | - Luigi Villa
- Division of Nephrology and Immunology, RWTH Aachen University, Aachen Germany
| | - Ute Raffetseder
- Division of Nephrology and Immunology, RWTH Aachen University, Aachen Germany
| | - Christian Trautwein
- Division of Gastroenterology, Metabolic Diseases, and Intensive Care, RWTH Aachen University, Aachen, Germany
| | - Dieter Görtz
- Institute of Biochemistry and Molecular Biology, RWTH Aachen University, Aachen, Germany
| | - Gerhard Müller-Newen
- Institute of Biochemistry and Molecular Biology, RWTH Aachen University, Aachen, Germany
| | - Tammo Ostendorf
- Division of Nephrology and Immunology, RWTH Aachen University, Aachen Germany
| | - Jürgen Floege
- Division of Nephrology and Immunology, RWTH Aachen University, Aachen Germany
| |
Collapse
|
36
|
Nampei A, Nagayama Y. SAT0111 Short Term Results of Total Elbow Arthroplasty Using Novel Linked Type Prosthesis in Rheumatoid Arthritis Patients. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.4217] [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: 11/03/2022]
|
37
|
Proletov I, Sipovskii V, Smirnov A, Hayashi N, Akiyama S, Okuyama H, Matsui Y, Fujimoto K, Atsumi H, Adachi H, Yamaya H, Maruyama S, Imai E, Matsuo S, Yokoyama H, Prasad N, Jaiswal A, Agarwal V, Yadav B, Rai M, Shin DH, Han IM, Moon SJ, Yoo TH, Faria B, Henriques C, Matos AC, Daha MR, Pestana M, Seelen M, Lundberg S, Carlsson MC, Leffler H, Pahlsson P, Segelmark M, Camilla R, Donadio ME, Loiacono E, Peruzzi L, Amore A, Chiale F, Vergano L, Gallo R, Boido A, Conrieri M, Bianciotto M, Bosetti FM, Mengozzi G, Puccinelli MP, Guidi C, Lastauka I, Coppo R, Nishiwaki H, Hasegawa T, Nagayama Y, Komukai D, Kaneshima N, Sasai F, Yoshimura A, Wang CL, Wei XY, Lv L, Jia NY, Vagane AM, Knoop T, Vikse BE, Reisaeter AV, Bjorneklett R, Mezzina N, Brunini F, Trezzi B, Gallieni M, D'Amico M, Stellato T, Santoro D, Ghiggeri GM, Radice A, Sinico RA, Kronbichler A, Kerschbaum J, Mayer G, Rudnicki M, Elena GS, Paula Jara CE, Jorge Enrique RR, Manuel P, Paek J, Hwang E, Park S, Caliskan Y, Aksoy A, Oztop N, Ozluk Y, Artan AS, Yazici H, Kilicaslan I, Sever MS, Yildiz A, Ihara K, Iimori S, Okado T, Rai T, Uchida S, Sasaki S, Stangou M, Bantis C, Skoularopoulou M, Toulkeridis G, Labropoulou I, Kasimatis S, Kouri NM, Papagianni A, Efstratiadis G, Mircescu G, Stancu S, Zugravu A, Petrescu L, Andreiana I, Taran L, Suzuki T, Iyoda M, Yamaguchi Y, Watanabe M, Wada Y, Matsumoto K, Shindo-Hirai Y, Kuno Y, Yamamoto Y, Saito T, Iseri K, Shibata T, Gniewek K, Krajewska M, Jakuszko K, Koscielska-Kasprzak K, Klinger M, Nunes AT, Ferreira I, Neto R, Mariz E, Pereira E, Frazao J, Praca A, Sampaio S, Pestana M, Kim HJ, Lee JE, Proletov I, Galkina O, Bogdanova E, Zubina I, Sipovskii V, Smirnov A, Oliveira CBL, Oliveira ASA, Carvalho CJB, Sette LHBC, Fernandes GV, Cavalcante MA, Valente LM, Ismail G, Andronesi A, Jurubita R, Bobeica R, Finocchietti D, Cantaluppi V, Medica D, Daidola G, Colla L, Besso L, Burdese M, Segoloni GP, Biancone L, Camussi G, Goto S, Nakai K, Ito J, Fujii H, Tasaki K, Suzuki T, Fukami K, Hara S, Nishi S, Hayami N, Ubara Y, Hoshino J, Takaichi K, Suwabe T, Sumida K, Mise K, Wang CL, Tian YQ, Wang H, Saganova E, Proletov I, Galkina O, Bogdanova E, Zubina I, Sipovskii V, Smirnov A, Stancu S, Mandache E, Zugravu A, Petrescu L, Avram A, Mircescu G, Angelini C, Reggiani F, Podesta MA, Cucchiari D, Malesci A, Badalamenti S, Laganovi M, Ars E, ivko M, eljkovic Vrki T, Cori M, Karanovi S, Torra R, Jelakovi B, Jia NY, Wang CL, Zhang YH, Nan L, Nagasawa Y, Yamamoto R, Shinzawa M, Hamahata S, Kida A, Yahiro M, Kuragano T, Shoji T, Hayashi T, Nagatoya K, Yamauchi A, Isaka Y, Nakanishi T, Ivkovic V, Premuzic V, Laganovic M, Dika Z, Kos J, Zeljkovic Vrkic T, Fistrek Prlic M, Zivko M, Jelakovic B, Gigliotti P, Leone F, Lofaro D, Papalia T, Mollica F, Mollica A, Vizza D, Perri A, Bonofilgio R, Meneses G, Viana H, Santos MC, Ferreira C, Calado J, Carvalho F, Remedio F, Nolasco F, Caliskan Y, Oztop N, Aksoy A, Ozluk Y, Artan AS, Turkmen A, Kilicaslan I, Yildiz A, Sever MS, Nagaraju SP, Kosuru S, Parthasarathy R, Bairy M, Prabhu RA, Guddattu V, Koulmane Laxminarayana SL, Oruc A, Gullulu M, Acikgoz E, Aktas N, Yildiz A, Gul B, Premuzic V, Laganovic M, Ivkovic V, Coric M, Zeljkovic Vrkic T, Fodor L, Dika Z, Kos J, Fistrek Prlic M, Zivko M, Jelakovic B, Bale CB, Dighe TA, Kate P, Karnik S, Sajgure A, Sharma A, Korpe J, Jeloka T, Ambekar N, Sadre A, Buch A, Mulay A, Merida E, Huerta A, Gutierrez E, Hernandez E, Sevillano A, Caro J, Cavero T, Morales E, Moreno JA, Praga M. PRIMARY AND SECONDARY GLOMERULONEPHRITIDES 1. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
38
|
|
39
|
Kobayashi M, Kaneko-Koike C, Abiru N, Uchida T, Akazawa S, Nakamura K, Kuriya G, Satoh T, Ida H, Kawasaki E, Yamasaki H, Nagayama Y, Sasaki H, Kawakami A. Genetic deletion of granzyme B does not confer resistance to the development of spontaneous diabetes in non-obese diabetic mice. Clin Exp Immunol 2013; 173:411-8. [PMID: 23663075 DOI: 10.1111/cei.12134] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/06/2013] [Indexed: 11/30/2022] Open
Abstract
Granzyme B (GzmB) and perforin are proteins, secreted mainly by natural killer cells and cytotoxic T lymphocytes that are largely responsible for the induction of apoptosis in target cells. Because type 1 diabetes results from the selective destruction of β cells and perforin deficiency effectively reduces diabetes in non-obese diabetic (NOD) mice, it can be deduced that β cell apoptosis involves the GzmB/perforin pathway. However, the relevance of GzmB remains totally unknown in non-obese diabetic (NOD) mice. In this study we have focused on GzmB and examined the consequence of GzmB deficiency in NOD mice. We found that NOD.GzmB(-/-) mice developed diabetes spontaneously with kinetics similar to those of wild-type NOD (wt-NOD) mice. Adoptive transfer study with regulatory T cell (Treg )-depleted splenocytes (SPCs) into NOD-SCID mice or in-vivo Treg depletion by anti-CD25 antibody at 4 weeks of age comparably induced the rapid progression of diabetes in the NOD.GzmB(-/-) mice and wt-NOD mice. Expression of GzmA and Fas was enhanced in the islets from pre-diabetic NOD.GzmB(-/-) mice. In contrast to spontaneous diabetes, GzmB deficiency suppressed the development of cyclophosphamide-promoted diabetes in male NOD mice. Cyclophosphamide treatment led to a significantly lower percentage of apoptotic CD4(+) , CD8(+) and CD4(+) CD25(+) T cells in SPCs from NOD.GzmB(-/-) mice than those from wt-NOD mice. In conclusion, GzmB, in contrast to perforin, is not essentially involved in the effector mechanisms for β cell destruction in NOD mice.
Collapse
Affiliation(s)
- M Kobayashi
- Department of Endocrinology and Metabolism, Unit of Translational Medicine, Graduate School of Biomedical Science, Nagasaki University, Nagasaki, Fukuoka, Japan
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
40
|
Nagayama Y, Yoshimura A, Iwasaki S. Cytokine nephropathy in a patient with fatal Epstein–Barr virus-associated hemophagocytic syndrome. Ren Fail 2013; 35:1445-8. [DOI: 10.3109/0886022x.2013.828358] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
41
|
Kuriya G, Uchida T, Akazawa S, Kobayashi M, Nakamura K, Satoh T, Horie I, Kawasaki E, Yamasaki H, Yu L, Iwakura Y, Sasaki H, Nagayama Y, Kawakami A, Abiru N. Double deficiency in IL-17 and IFN-γ signalling significantly suppresses the development of diabetes in the NOD mouse. Diabetologia 2013; 56:1773-80. [PMID: 23699989 DOI: 10.1007/s00125-013-2935-8] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2012] [Accepted: 04/22/2013] [Indexed: 11/28/2022]
Abstract
AIMS/HYPOTHESIS T helper type (Th) 17 cells have been shown to play important roles in mouse models of several autoimmune diseases that have been classified as Th1 diseases. In the NOD mouse, the relevance of Th1 and Th17 is controversial, because single-cytokine-deficient NOD mice develop diabetes similarly to wild-type NOD mice. METHODS We studied the impact of IL-17/IFN-γ receptor double deficiency in NOD mice on the development of insulitis/diabetes compared with IL-17 single-deficient mice and wild-type mice by monitoring diabetes-related phenotypes. The lymphocyte phenotypes were determined by flow cytometric analysis. RESULTS IL-17 single-deficient NOD mice showed delayed onset of diabetes and reduced severity of insulitis, but the cumulative incidence of longstanding diabetes in the IL-17-deficient mice was similar to that in wild-type mice. The IL-17/IFN-γ receptor double-deficient NOD mice showed an apparent decline in longstanding diabetes onset, but not in insulitis compared with that in the IL-17 single-deficient mice. We also found that double-deficient NOD mice had a severe lymphopenic phenotype and preferential increase in regulatory T cells among CD4(+) T cells compared with the IL-17 single-deficient mice and wild-type NOD mice. An adoptive transfer study with CD4(+)CD25(-) T cells from young non-diabetic IL-17 single-deficient NOD mice, but not those from older mice, showed significantly delayed disease onset in immune-deficient hosts compared with the corresponding wild-type mice. CONCLUSIONS/INTERPRETATION These results indicate that IL-17/Th17 participates in the development of insulitis and that both IL-17 and IFN-γ signalling may synergistically contribute to the development of diabetes in NOD mice.
Collapse
Affiliation(s)
- G Kuriya
- Department of Endocrinology and Metabolism, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
42
|
Johnson KTM, Wiesweg B, Schott M, Ehlers M, Müller M, Minich WB, Nagayama Y, Gulbins E, Eckstein AK, Berchner-Pfannschmidt U. Examination of orbital tissues in murine models of Graves' disease reveals expression of UCP-1 and the TSHR in retrobulbar adipose tissues. Horm Metab Res 2013; 45:401-7. [PMID: 23386414 DOI: 10.1055/s-0032-1333224] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [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: 10/27/2022]
Abstract
Over the past decade a number of murine models of Graves' disease (GD) have been described. The full symptom complex, including typical orbital changes, however, could not yet be induced. In this report, we examined the influence of modified immunization protocols on orbital pathology. C57BL/6 and BALB/c mice were immunized against the human TSH receptor (TSHR), using either a TSHR encoding plasmid or a TSHR A-subunit adenovirus. Prior to immunization with the TSHR plasmid, regulatory T cells were depleted in one group of each strain. TSHR-stimulating antibodies (TSAbs) were evaluated and orbits were stained immunohistochemically for F4/80, uncoupling protein-1 (UCP-1) and the TSHR. We found that after depletion of regulatory T cells, incidence of TSAb was increased in TSHR plasmid immunized C57BL/6 mice. Examination of early immunized mice showed no antibody production. However, a TSHR epitope-specific cellular immune response could be detected by tetramer-analyses. Adenoviral immunization lead to TSAb production in all but one animal. Analysis of F4/80 positive cells in retrobulbar fat revealed no significant macrophage infiltration in the orbits of immunized mice. Immunohistochemical staining shows co-localization of F4/80 positive cells, UCP-1 and the TSHR in retrobulbar fat. Though targets for TSHR autoimmunity could clearly be shown, immunization methods were not efficient enough to cause clear signs of orbital inflammation.
Collapse
Affiliation(s)
- K T M Johnson
- Department for Ophthalmology, University of Duisburg-Essen, Essen, Germany
| | | | | | | | | | | | | | | | | | | |
Collapse
|
43
|
van Roeyen CRC, Zok S, Pruessmeyer J, Boor P, Nagayama Y, Fleckenstein S, Cohen CD, Eitner F, Gröne HJ, Ostendorf T, Ludwig A, Floege J. Growth arrest-specific protein 1 is a novel endogenous inhibitor of glomerular cell activation and proliferation. Kidney Int 2012; 83:251-63. [PMID: 23254899 DOI: 10.1038/ki.2012.400] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Growth arrest-specific protein-1 (GAS1) is a GPI-anchored protein which is highly expressed in embryonic mouse fibroblasts and inhibits their proliferation. Glomerular mesangial cells release soluble GAS1 protein into the supernatant in vitro. Growth arrest led to GAS1 overexpression and increased release. Secretion involved disintegrin and metalloproteinase 10 and 17 as signified by inhibition experiments. Recombinant soluble GAS1 protein inhibited the proliferation of mesangial cells. Conversely, the induction of mesangial cell proliferation by PDGF-BB or -DD led to downregulation of GAS1 mRNA. Specific ligands of the PDGF α-receptor, PDGF-AA and -CC, had no effect. The GAS1 protein was localized in podocytes in kidneys from healthy rats. During the time course of mesangioproliferative glomerulonephritis in anti-Thy1.1-treated rats, glomerular GAS1 expression decreased prior to the onset of mesangial cell proliferation and increased at later stages during glomerular recovery. Finally, a plasmid expressing soluble GAS1 fused to an Fc fragment was systemically overexpressed in rats with mesangioproliferative glomerulonephritis. This ameliorated renal damage was indicated by decreased albuminuria and serum creatinine. Gas1/Fc-transfected rats also exhibited a reduction of the glomerular mesangial cell activation and proliferation. Thus, GAS1 is a novel endogenous inhibitor of glomerular mesangial cell proliferation and may be a novel therapeutic target in mesangioproliferative glomerular diseases.
Collapse
|
44
|
Nakanishi H, Kojima M, Takahashi C, Ohsuna M, Imazu S, Nonomura M, Hasegawa M, Yoshikawa M, Nagayama Y, Kawahata K. Fusion virtual laboratory: The experiments’ collaboration platform in Japan. Fusion Engineering and Design 2012. [DOI: 10.1016/j.fusengdes.2012.04.027] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
45
|
Nagayama Y, Kuwahara D, Yoshinaga T, Hamada Y, Kogi Y, Mase A, Tsuchiya H, Tsuji-Iio S, Yamaguchi S. Development of 3D microwave imaging reflectometry in LHD (invited). Rev Sci Instrum 2012; 83:10E305. [PMID: 23126965 DOI: 10.1063/1.4729259] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Three-dimensional (3D) microwave imaging reflectometry has been developed in the large helical device to visualize fluctuating reflection surface which is caused by the density fluctuations. The plasma is illuminated by the probe wave with four frequencies, which correspond to four radial positions. The imaging optics makes the image of cut-off surface onto the 2D (7 × 7 channels) horn antenna mixer arrays. Multi-channel receivers have been also developed using micro-strip-line technology to handle many channels at reasonable cost. This system is first applied to observe the edge harmonic oscillation (EHO), which is an MHD mode with many harmonics that appears in the edge plasma. A narrow structure along field lines is observed during EHO.
Collapse
Affiliation(s)
- Y Nagayama
- National Institute for Fusion Science, Toki, Japan
| | | | | | | | | | | | | | | | | |
Collapse
|
46
|
Nagayama Y, Nakahara M, Shimamura M, Horie I, Arima K, Abiru N. Prophylactic and therapeutic efficacies of a selective inhibitor of the immunoproteasome for Hashimoto's thyroiditis, but not for Graves' hyperthyroidism, in mice. Clin Exp Immunol 2012; 168:268-73. [PMID: 22519588 DOI: 10.1111/j.1365-2249.2012.04578.x] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Major histocompatibility complex (MHC) class I-restricted T cell epitopes are generated mainly by the immunoproteasome in antigen-presenting cells. Therefore, inhibition of activity of this proteolytic complex molecule is thought to be a potential treatment for cell-mediated autoimmune diseases. We therefore studied the efficacy of an immunoproteasome inhibitor, ONX 0914 (formerly PR-957), for the treatment of autoimmune thyroid diseases, including cell-mediated Hashimoto's thyroiditis and autoantibody-mediated Graves' hyperthyroidism using mouse models. Our data show that ONX 0914 was effective prophylactically and therapeutically at suppressing the degree of intrathyroidal lymphocyte infiltration and, to a lesser degree, the titres of anti-thyroglobulin autoantibodies in non-obese diabetic (NOD)-H2(h4) mice, an iodine-induced autoimmune thyroiditis model. It also inhibited differentiation of T cells to T helper type 1 (Th1) and Th17 cells, effector T cell subsets critical for development of thyroiditis in this mouse strain. In contrast, its effect on the Graves' model was negligible. Although ONX 0914 exerts its immune-suppressive effect through not only suppression of immune proteasome but also other mechanism(s), such as inhibition of T cell differentiation, the present results suggest that the immunoproteasome is a novel drug target in treatment of Hashimoto's thyroiditis in particular and cell-mediated autoimmune diseases in general.
Collapse
Affiliation(s)
- Y Nagayama
- Department of Molecular Medicine, Atomic Bomb Disease Institute Division of Immunology, Endocrinology and Metabolism, Department of Medical and Dental Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
| | | | | | | | | | | |
Collapse
|
47
|
Inagaki S, Tokuzawa T, Itoh K, Ida K, Itoh SI, Tamura N, Sakakibara S, Kasuya N, Fujisawa A, Kubo S, Shimozuma T, Ido T, Nishimura S, Arakawa H, Kobayashi T, Tanaka K, Nagayama Y, Kawahata K, Sudo S, Yamada H, Komori A. Observation of long-distance radial correlation in toroidal plasma turbulence. Phys Rev Lett 2011; 107:115001. [PMID: 22026678 DOI: 10.1103/physrevlett.107.115001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2010] [Indexed: 05/31/2023]
Abstract
This Letter presents the discovery of macroscale electron temperature fluctuations with a long radial correlation length comparable to the plasma minor radius in a toroidal plasma. Their spatiotemporal structure is characterized by a low frequency of ∼1-3 kHz, ballistic radial propagation, a poloidal or toroidal mode number of m/n=1/1 (or 2/1), and an amplitude of ∼2% at maximum. Nonlinear coupling between the long-range fluctuations and the microscopic fluctuations is identified. A change of the amplitude of the long-range fluctuation is transmitted across the plasma radius at the velocity which is of the order of the drift velocity.
Collapse
Affiliation(s)
- S Inagaki
- Research Institute for Applied Mechanics, Kyushu University, Fukuoka 816-8580, Japan
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
48
|
Ueki I, Abiru N, Kobayashi M, Nakahara M, Ichikawa T, Eguchi K, Nagayama Y. B cell-targeted therapy with anti-CD20 monoclonal antibody in a mouse model of Graves' hyperthyroidism. Clin Exp Immunol 2011; 163:309-17. [PMID: 21235532 DOI: 10.1111/j.1365-2249.2010.04301.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Graves' disease is a B cell-mediated and T cell-dependent autoimmune disease of the thyroid which is characterized by overproduction of thyroid hormones and thyroid enlargement by agonistic anti-thyrotrophin receptor (TSHR) autoantibody. In addition to antibody secretion, B cells have recently been recognized to function as antigen-presenting/immune-modulatory cells. The present study was designed to evaluate the efficacy of B cell depletion by anti-mouse (m) CD20 monoclonal antibody (mAb) on Graves' hyperthyroidism in a mouse model involving repeated injection of adenovirus expressing TSHR A-subunit (Ad-TSHR289). We observe that a single injection of 250 µg/mouse anti-mCD20 mAb eliminated B cells efficiently from the periphery and spleen and to a lesser extent from the peritoneum for more than 3 weeks. B cell depletion before immunization suppressed an increase in serum immunoglobulin (Ig)G levels, TSHR-specific splenocyte secretion of interferon (IFN)-γ, anti-TSHR antibody production and development of hyperthyroidism. B cell depletion 2 weeks after the first immunization, a time-point at which T cells were primed but antibody production was not observed, was still effective at inhibiting antibody production and disease development without inhibiting splenocyte secretion of IFN-γ. By contrast, B cell depletion in hyperthyroid mice was therapeutically ineffective. Together, these data demonstrate that B cells are critical not only as antibody-producing cells but also as antigen-presenting/immune-modulatory cells in the early phase of the induction of experimental Graves' hyperthyroidism and, although therapeutically less effective, B cell depletion is highly efficient for preventing disease development.
Collapse
Affiliation(s)
- I Ueki
- Department of Medical Gene Technology, Atomic Bomb Disease Institute, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | | | | | | | | | | | | |
Collapse
|
49
|
Yoshinaga T, Nagayama Y, Kuwahara D, Tsuchiya H, Yamaguchi S, Kogi Y, Tsuji-Iio S, Mase A. Simultaneous projection and detection system of four different frequencies for microwave imaging reflectometry in Large Helical Device. Rev Sci Instrum 2010; 81:10D915. [PMID: 21033947 DOI: 10.1063/1.3491197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
A simultaneous projection/detection system of four different frequencies for microwave imaging reflectometry (MIR) was developed for three-dimensional observation of electron density fluctuations in the Large Helical Device (LHD). The microwave with four frequency components at 60.410, 61.808, 63.008, and 64.610 GHz is projected in a continuous-wave mode to illuminate the target LHD plasma. A two-dimensional horn-antenna mixer array (2D HMA) receives the reflected wave from the plasma as well as the wave from the local oscillator operating at 55.800 GHz. The first intermediate frequency (IF) signals at 4.610, 6.008, 7.208, and 8.810 GHz were confirmed to be obtained by downconversion of these microwaves using the 2D HMA. Each of these first IF components is filtered from each other and downconverted again for the superheterodyne detection. It was confirmed that both the amplitudes and the phases of the detected signals reflect the fluctuations in LHD plasmas.
Collapse
Affiliation(s)
- T Yoshinaga
- National Institute for Fusion Science, 322-6 Oroshi, Toki 509-5292, Japan.
| | | | | | | | | | | | | | | |
Collapse
|
50
|
Kuwahara D, Tsuji-Iio S, Nagayama Y, Yoshinaga T, Tsuchiya H, Sugito S, Yamaguchi S, Kogi Y, Akaki K, Mase A. Development of electron cyclotron emission imaging system on Large Helical Device. Rev Sci Instrum 2010; 81:10D919. [PMID: 21033951 DOI: 10.1063/1.3491223] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
A combined system of microwave imaging reflectometry and electron cyclotron emission (ECE) imaging has been developed for the Large Helical Device. This system includes a wide-band two-dimensional horn-antenna mixer array (HMA). The HMA consists of horn antennas, waveguides, mixers, and intermediate frequency circuits. The frequency response of the HMA is between 50 and 110 GHz. The ECE signal is selected using a 95 GHz local oscillator and a 93 GHz high-pass filter.
Collapse
Affiliation(s)
- D Kuwahara
- Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro, Tokyo 152-8550, Japan.
| | | | | | | | | | | | | | | | | | | |
Collapse
|