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Sugisawa J, Matsumoto Y, Suda A, Ota H, Tsuchiya S, Ohyama K, Takeuchi M, Shindo T, Ikeda S, Hao K, Kikuchi Y, Takahashi J, Takase K, Kohzuki M, Shimokawa H. 3332Exercise training ameliorates vasodilator capacity of coronary microvessels in patients with vasospastic angina - A new therapeutic approach for the coronary functional disorder. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
We have recently demonstrated that coronary vasospasm could develop in both epicardial coronary arteries and intramuscular coronary microvessels in patients with vasospastic angina (VSA). However, it remains to be examined whether vasodilator capacity of coronary microvessels is impaired in VSA patients and if so, whether exercise training could ameliorate vasodilator capacity of coronary microvessels on the top of calcium channel blockers. The effectiveness of exercise training is established for organic coronary artery disease but remained to be examined for VSA.
Purpose
We thus examined whether vasodilator capacity of coronary microvessels is impaired in VSA patients without organic coronary stenosis using an adenosine-stress dynamic computed tomography perfusion (CTP) that can measure absolute value of myocardial blood flow (MBF). We also examined whether exercise training ameliorates not only vasodilator capacity of coronary microvessels but also exercise capacity and frequency of angina attack.
Methods
In the first protocol, we measured MBF using CTP in consecutive 32 VSA patients with acetylcholine-induced diffuse coronary spasm in the left anterior descending coronary arteries (LAD) and 12 non-VSA controls. In the second protocol, we conducted a randomized controlled trial (RCT; Exercise VSA trial, UMIN: ehz745.008423996), where 20 VSA patients were randomly assigned to either exercise group (Ex group: supervised exercise training session for 30-min using bicycle ergometer, once/week at the hospital and more than 3 times/week at home) or non-exercise group (Non-Ex group) (n=10 each) (Figure A). Before and 3 months after exercise training, we measured MBF with adenosine-stress dynamic CTP and peak VO2 by cardiopulmonary exercise tests, and also assessed angina attack with Seattle Angina Questionnaire (SAQ).
Results
In the first protocol, CTP showed that adenosine-stress MBF was significantly decreased in the VSA group compared with the non-VSA group (VSA, 137.2±6.6 vs. Non-VSA, 174.4±10.7 ml/100g/min, P<0.01) (Figure B), although patient characteristics were comparable between the 2 groups. In the second protocol, exercise training was performed safely in all patients, and RCT showed that MBF was significantly increased in the Ex group compared with the non-Ex group (Figures C, D), although patient characteristics were also comparable between the 2 groups. Furthermore, peak VO2 was significantly increased in the Ex group compared with the non-Ex group (Figure E), and frequency of angina was significantly decreased in the Ex group compared with the non-Ex group (Figure F). Finally, there was a significant positive correlation between the extents of the changes in peak VO2 and the SAQ score for angina frequency in the Ex group (P<0.01, R=0.67).
Figures
Conclusions
These results provide the first evidence that vasodilator capacity of coronary microvessels is impaired in VSA patients, which can be ameliorated by exercise training.
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Affiliation(s)
- J Sugisawa
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - Y Matsumoto
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - A Suda
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - H Ota
- Tohoku University Graduate School of Medicine, Department of Radiology, Sendai, Japan
| | - S Tsuchiya
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - K Ohyama
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - M Takeuchi
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - T Shindo
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - S Ikeda
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - K Hao
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - Y Kikuchi
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - J Takahashi
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - K Takase
- Tohoku University Graduate School of Medicine, Department of Radiology, Sendai, Japan
| | - M Kohzuki
- Tohoku University Graduate School of Medicine, Department of Internal Medicine & Rehabilitation Science, Sendai, Japan
| | - H Shimokawa
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
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Terui Y, Sugimura K, Ota H, Hiroshi T, Sato H, Nochioka K, Tatebe S, Miyata S, Sakata Y, Ishida T, Takase K, Shimokawa H. P3117Usefulness of cardiac magnetic resonance imaging for early detection of subclinical chemotherapy-related cardiac dysfunction in cancer patients. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Long-term prognosis of cancer patients has been improved along with the progress in chemotherapies. However, chemotherapy-related cardiac dysfunction (CTRCD) is emerging as a serious adverse effect as it worsens patients' outcome and quality of life. Thus, early detection of subclinical CTRCD is an important emerging issue in the management of cancer patients. Cardiac magnetic resonance (CMR) utilizes parametric mapping approach and strain analysis to provide detailed information about cardiac tissue and diastolic cardiac function.
Purpose
We examined whether the novel CMR imaging techniques are useful for early detection of CTRCD.
Methods and results
We performed both retrospective and prospective studies. (1) Retrospective study: We retrospectively enrolled 52 cancer patients (mean age 55.6±13 yrs., M/F=14/38) who had been treated with anthracyclines. We examined the usefulness of CMR for quantitative assessment of myocardial fibrosis caused by chemotherapies. We found that native T1 value was significantly prolonged in cancer patients compared with healthy controls (N=10) (1,279±56 vs. 1,240±34 msec, P=0.036). (2) Prospective study: A total of 99 consecutive female patients with breast cancer treated with chemotherapies were enrolled in this study from August 2017 to January 2019. To evaluate CTRCD in those patients, we performed CMR (at baseline and/or 6 months) and biomarkers analysis for cardiac troponin T (cTnT) and BNP at baseline and every 3 months during chemotherapies. In the 99 patients, 52 (mean age 53.0±12.7 yrs.) completed cardiac assessment at 6 months, and 6 (12%) developed CTRCD defined as a reduction in left ventricular ejection fraction (LVEF) >10% from baseline and below 53% without symptoms. In patients with CTRCD (CTRCD group, N=6), as compared with those without it (non-CTRCD group, N=46), native T1 value was significantly prolonged after chemotherapies (1,303±32 vs. 1,322±22 msec at 6 months, P=0.03). Plasma cTnT levels at 3 months were also significantly higher in the CTRCD group compared with the non-CTRCD group [0.022 (IQR 0.015–0.026) vs. 0.01 (0.006–0.014) ng/mL, P=0.024], whereas there was no difference in BNP values. In the 52 patients, 28 (mean age 56.3±12.3 yrs.) underwent CMR both before and 6 months after chemotherapies. In those patients, LVEF and global radial strain were significantly decreased at 6 months from baseline (LVEF, from 70.5±4.6 to 66.0±7.1%; global radial strain, from 70.0±22.5 to 61.1±22.6%, respectively, both P<0.05). In patients with elevated cTnT levels at 3 months, as compared with those without it, LVEF and extracellular volume fraction (ECV) at 6 months were significantly worse (LVEF, 59.0±6.0 vs. 62.7±2.6%, P=0.042; ECV, 32.3±2.9 vs. 30.2±2.3%, P=0.049, respectively).
Conclusions
These results indicate that novel CMR imaging techniques are useful for early detection of CTRCD among cancer patients treated with chemotherapies.
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Affiliation(s)
- Y Terui
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - K Sugimura
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - H Ota
- Tohoku University Graduate School of Medicine, Department of Diagnostic Radiology, Sendai, Japan
| | - T Hiroshi
- Tohoku University Graduate School of Medicine, Department of Surgical Oncology, Sendai, Japan
| | - H Sato
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - K Nochioka
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - S Tatebe
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - S Miyata
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - Y Sakata
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - T Ishida
- Tohoku University Graduate School of Medicine, Department of Surgical Oncology, Sendai, Japan
| | - K Takase
- Tohoku University Graduate School of Medicine, Department of Diagnostic Radiology, Sendai, Japan
| | - H Shimokawa
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
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Mugikura S, Takahashi S, Takase K. Relationship between Ischemic Injury and Patient Outcomes after Surgical or Endovascular Treatment of Ruptured Anterior Communicating Artery Aneurysms. AJNR Am J Neuroradiol 2018; 39:E51-E52. [PMID: 29449285 DOI: 10.3174/ajnr.a5564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- S Mugikura
- Department of Diagnostic Radiology Graduate School of Medicine Tohoku University Sendai, Japan
| | - S Takahashi
- Department of Diagnostic Radiology Graduate School of Medicine Tohoku University Sendai, Japan
| | - K Takase
- Department of Diagnostic Radiology Graduate School of Medicine Tohoku University Sendai, Japan
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Takase K, Yamamoto K. Arthroscopic procedures and therapeutic results of anatomical reconstruction of the coracoclavicular ligaments for acromioclavicular Joint dislocation. Orthop Traumatol Surg Res 2016; 102:583-7. [PMID: 27317638 DOI: 10.1016/j.otsr.2016.04.011] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Revised: 03/30/2016] [Accepted: 04/25/2016] [Indexed: 02/02/2023]
Abstract
BACKGROUND Surgical treatment is recommended for type 5 acromioclavicular joint dislocation on Rockwood's classification. We believe that anatomic repair of the coracoclavicular ligaments best restores the function of the acromioclavicular joint. We attempted to correctly reconstruct the anatomy of the coracoclavicular ligaments under arthroscopy, and describe the minimally invasive arthroscopic procedure. MATERIALS AND METHODS There were 22 patients; mean age at surgery, 38.1 years. Mean time to surgery was 13.2 days. Mean follow-up was 3 years 2 months. The palmaris longus tendon was excised from the ipsilateral side to replace the conoid ligament, while artificial ligament was used for reconstructing the trapezoid ligament. Both ligament reconstructions were performed arthroscopically. No temporary fixation of the acromioclavicular joint was performed. RESULTS On postoperative radiographic evaluation, 4 patients showed subluxation and 2 showed dislocation of the acromioclavicular joint; the other 16 patients had maintained reduction at the final consultation. MR images 1year after surgery clearly revealed the reconstructed ligaments in 19 patients. Only 1 patient showed osteoarthritis of the acromioclavicular joint. CONCLUSION Although it requires resection of the ipsilateral palmaris longus for grafting, we believe that anatomic reconstruction of both coracoclavicular ligaments best restores the function of the acromioclavicular joint. LEVEL OF EVIDENCE 4.
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Affiliation(s)
- K Takase
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku Shinjuku-ku, 160-0023 Tokyo, Japan.
| | - K Yamamoto
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku Shinjuku-ku, 160-0023 Tokyo, Japan
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Rohde M, Peeters JWR, Pucciarelli A, Kiss A, Rao YF, Onder EN, Muehlbauer P, Batta A, Hartig M, Chatoorgoon V, Thiele R, Chang D, Tavoularis S, Novog D, McClure D, Gradecka M, Takase K. A Blind, Numerical Benchmark Study on Supercritical Water Heat Transfer Experiments in a 7-Rod Bundle. Journal of Nuclear Engineering and Radiation Science 2016. [DOI: 10.1115/1.4031949] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Heat transfer in supercritical water reactors (SCWRs) shows a complex behavior, especially when the temperatures of the water are near the pseudocritical value. For example, a significant deterioration of heat transfer may occur, resulting in unacceptably high cladding temperatures. The underlying physics and thermodynamics behind this behavior are not well understood yet. To assist the worldwide development in SCWRs, it is therefore of paramount importance to assess the limits and capabilities of currently available models, despite the fact that most of these models were not meant to describe supercritical heat transfer (SCHT). For this reason, the Gen-IV International Forum initiated the present blind, numerical benchmark, primarily aiming to show the predictive ability of currently available models when applied to a real-life application with flow conditions that resemble those of an SCWR. This paper describes the outcomes of ten independent numerical investigations and their comparison with wall temperatures measured at different positions in a 7-rod bundle with spacer grids in a supercritical water test facility at JAEA. The wall temperatures were not known beforehand to guarantee the blindness of the study. A number of models have been used, ranging from a one-dimensional (1-D) analytical approach with heat transfer correlations to a RANS simulation with the SST turbulence model on a mesh consisting of 62 million cells. None of the numerical simulations accurately predicted the wall temperature for the test case in which deterioration of heat transfer occurred. Furthermore, the predictive capabilities of the subchannel analysis were found to be comparable to those of more laborious approaches. It has been concluded that predictions of SCHT in rod bundles with the help of currently available numerical tools and models should be treated with caution.
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Affiliation(s)
- M. Rohde
- Delft University of Technology, Mekelweg 15, Delft 2629 JB, The Netherlands e-mail:
| | - J. W. R. Peeters
- Delft University of Technology, Mekelweg 15, Delft 2629 JB, The Netherlands
| | - A. Pucciarelli
- University of Pisa, Largo Lucio Lazzarino 2, 56126 Pisa, Italy
| | - A. Kiss
- BME NTI, Muegyetem rkp. 9 R bld. 317/7a, Budapest 1111, Hungary
| | - Y. F. Rao
- CNL, 286 Plant Road, Chalk River, ON K0J 1J0, Canada
| | - E. N. Onder
- CNL, 286 Plant Road, Chalk River, ON K0J 1J0, Canada
| | - P. Muehlbauer
- Research Centre Rez Ltd., Hlavní 130, Rez 250 68, Czech Republic
| | - A. Batta
- KIT-IKET, Hermann-von-Helmholtz-Platz 1, Karlsruhe 76344, Germany
| | - M. Hartig
- KIT-IKET, Hermann-von-Helmholtz-Platz 1, Karlsruhe 76344, Germany
| | - V. Chatoorgoon
- University of Manitoba, 75A Chancellors Circle, Winnipeg, MB R3T 5V6, Canada
| | - R. Thiele
- KTH Royal Institute of Technology, Roslagstullsbacken 21, Stockholm 106 91, Sweden
| | - D. Chang
- University of Ottawa, 161 Louis Pasteur, Ottawa, ON K1N6N5, Canada
| | - S. Tavoularis
- University of Ottawa, 161 Louis Pasteur, Ottawa, ON K1N6N5, Canada
| | - D. Novog
- McMaster University, Somestreet 1, Hamilton, ON 333AS, Canada
| | - D. McClure
- McMaster University, Somestreet 1, Hamilton, ON 333AS, Canada
| | - M. Gradecka
- Warsaw University of Technology, ul. nowowiejska 21/25, Warsaw 00665, Poland
| | - K. Takase
- Japan Atomic Energy Agency, 2-4 Shirakata, Tokai, Naka Ibaraki, Ibaraki-ken 319-1195, Japan
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Sato M, Morimoto R, Seiji K, Iwakura Y, Ono Y, Kudo M, Satoh F, Ito S, Ishibashi T, Takase K. Cost-Effectiveness Analysis of the Diagnosis and Treatment of Primary Aldosteronism in Japan. Horm Metab Res 2015; 47:826-32. [PMID: 26305168 DOI: 10.1055/s-0035-1559645] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [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: 10/23/2022]
Abstract
Approximately 10% of cases of hypertension in Japan are caused by primary aldosteronism (PA), amounting to about 4 million patients in total. Primary aldosteronism due to unilateral aldosterone hypersecretion is potentially curable by adrenalectomy. The clinical benefits of identifying and treating PA have been reported internationally, but its cost-effectiveness is unclear. We examined whether diagnosing and treating hidden PA in hypertensive population was cost-effective compared with suboptimal treatment. Our hypothetical patient was a 50-year-old man diagnosed with stage I-III hypertension. We established a Markov decision model based on plausible clinical pathways and prognoses of PA. We applied cost-effectiveness analysis comparing a comprehensive diagnostic strategy for PA (measurement of plasma aldosterone/renin ratio, 2 loading tests, imaging, and selective adrenal venous sampling) with a suboptimal strategy to manage hypertension by medication unless the typical signs of PA or other complication were manifest. Outcome measures were expected costs, expected effectiveness, and incremental cost-effectiveness ratio. The robustness of the findings was established by one-way and scenario sensitivity analyses. The comprehensive PA diagnostic strategy increased the expected costs by 64 004 JPY and expected life-years by 0.013 compared with standard treatment. The incremental cost-effectiveness ratio for the diagnosis of PA was 4 923 385 JPY per year. Our findings were sensitive to the outcomes of screening and treatment, and the costs of continuous or periodic medication for hypertension and the treatment of stroke and its complications.
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Affiliation(s)
- M Sato
- Division of Clinical Imaging, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - R Morimoto
- Division of Nephrology, Endocrinology and Vascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - K Seiji
- Department of Diagnostic Radiology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Y Iwakura
- Division of Nephrology, Endocrinology and Vascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Y Ono
- Division of Nephrology, Endocrinology and Vascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - M Kudo
- Division of Nephrology, Endocrinology and Vascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - F Satoh
- Division of Nephrology, Endocrinology and Vascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - S Ito
- Division of Nephrology, Endocrinology and Vascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - T Ishibashi
- Division of Clinical Imaging, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - K Takase
- Department of Diagnostic Radiology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
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Takase K, Matsuo Y, Yanagisawa Y, Higashine K, Oda M, Manabe M, Shimada Y, Ogura R, Takahashi T, Hiasa Y. Efficacy of a home-based exercise program for recently hospitalized chronic heart failure patients. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.1448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Watanabe Y, Uenoyama Y, Suzuki J, Takase K, Suetomi Y, Ohkura S, Inoue N, Maeda KI, Tsukamura H. Oestrogen-induced activation of preoptic kisspeptin neurones may be involved in the luteinising hormone surge in male and female Japanese monkeys. J Neuroendocrinol 2014; 26:909-17. [PMID: 25283748 DOI: 10.1111/jne.12227] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [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: 12/19/2014] [Revised: 09/24/2014] [Accepted: 09/29/2014] [Indexed: 11/27/2022]
Abstract
The oestrogen-induced luteinising hormone (LH) surge is evident in male primates, including humans, whereas male rodents never show the LH surge, even when treated with a preovulatory level of oestrogen. This suggests that the central mechanism governing reproductive hormones in primates is different from that in rodents. The present study aimed to investigate whether male Japanese monkeys conserve a brain mechanism mediating the oestrogen-induced LH surge via activation of kisspeptin neurones. Adult male and female Japanese monkeys were gonadectomised and then were treated with oestradiol-17β for 2 weeks followed by a bolus injection of oestradiol benzoate. Both male and female monkeys showed an oestrogen-induced LH surge. In gonadectomised monkeys sacrificed just before the anticipated time of the LH surge, oestrogen treatment significantly increased the number of KISS1-expressing cells in the preoptic area (POA) and enhanced the expression of c-fos in POA KISS1-positive cells of males and females. The oestrogen treatment failed to induce c-fos expression in the arcuate nucleus (ARC) kisspeptin neurones in both sexes just prior to LH surge onset. Thus, kisspeptin neurones in the POA but not in the ARC might be involved in the positive-feedback action of oestrogen that induces LH surge in male Japanese monkeys, as well as female monkeys. The present results indicate that oestrogen-induced activation of POA kisspeptin neurones may contribute to the LH surge generation in both sexes. The conservation of the LH surge generating system found in adult male primates, unlike rodents, could be a result of the capability of oestrogen to induce POA kisspeptin expression and activation.
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Affiliation(s)
- Y Watanabe
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Aichi, Japan
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9
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Takase K, Aikawa M, Okada K, Watanabe Y, Okamoto K, Sato H, Nonaka K, Yamaguchi S, Sakuramoto S, Koyama I, Miyazawa M. Development of novel treatment with a bioabsorbable esophageal patch for benign esophageal stricture. Dis Esophagus 2014; 28:728-34. [PMID: 25286827 DOI: 10.1111/dote.12281] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Using a large animal model, we examined whether circumferential stricture after esophageal endoscopic submucosal dissection (ESD) can be treated by grafting a bioabsorbable esophageal patch. Circumferential ESD was performed on the thoracic esophagus in pigs (n = 6) to create a stricture, for which one of the following interventions was performed: (1) the stricture site was longitudinally incised, and an artificial esophageal wall (AEW) was grafted after placing a bioabsorbable stent (AEW patch group, n = 3); (2) endoscopic balloon dilation (EBD) was performed every other week after stricture development (EBD group, n = 3). In both groups, esophageal fluoroscopy was performed 8 weeks after the interventions, and the esophagus was excised for histological examination of the patched site. In the AEW patch group, esophageal fluoroscopy revealed favorable passage through the patched site. Histologically, the mucosal epithelium and lamina propria had regenerated as in the normal area. In the EBD group, the circumferential stricture site showed marked thickening, and there were hypertrophic scars associated with epithelial defects on the luminal surface. Histologically, defects of the mucosal epithelium and full-thickness proliferation of connective tissue were observed. AEW patch grafting was suggested to be a potentially novel treatment strategy for post-ESD esophageal circumferential stricture.
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Affiliation(s)
- K Takase
- Department of Surgery, Gastrointestinal Center, Saitama Medical University, International Medical Center, Saitama, Japan
| | - M Aikawa
- Department of Surgery, Gastrointestinal Center, Saitama Medical University, International Medical Center, Saitama, Japan
| | - K Okada
- Department of Surgery, Gastrointestinal Center, Saitama Medical University, International Medical Center, Saitama, Japan
| | - Y Watanabe
- Department of Surgery, Gastrointestinal Center, Saitama Medical University, International Medical Center, Saitama, Japan
| | - K Okamoto
- Department of Surgery, Gastrointestinal Center, Saitama Medical University, International Medical Center, Saitama, Japan
| | - H Sato
- Department of Surgery, Gastrointestinal Center, Saitama Medical University, International Medical Center, Saitama, Japan
| | - K Nonaka
- Department of Surgery, Gastrointestinal Center, Saitama Medical University, International Medical Center, Saitama, Japan
| | - S Yamaguchi
- Department of Surgery, Gastrointestinal Center, Saitama Medical University, International Medical Center, Saitama, Japan
| | - S Sakuramoto
- Department of Surgery, Gastrointestinal Center, Saitama Medical University, International Medical Center, Saitama, Japan
| | - I Koyama
- Department of Surgery, Gastrointestinal Center, Saitama Medical University, International Medical Center, Saitama, Japan
| | - M Miyazawa
- Department of Surgery, Gastrointestinal Center, Saitama Medical University, International Medical Center, Saitama, Japan
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Umezawa R, Ota H, Takanami K, Ichinose A, Matsushita H, Saito H, Takase K, Jingu K. MRI findings of radiation-induced myocardial damage in patients with oesophageal cancer. Clin Radiol 2014; 69:1273-9. [PMID: 25246336 DOI: 10.1016/j.crad.2014.08.010] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2014] [Revised: 06/21/2014] [Accepted: 08/12/2014] [Indexed: 01/09/2023]
Abstract
AIM To evaluate radiation-induced myocardial damage after mediastinal radiotherapy using MRI. MATERIALS AND METHODS Between May 2010 and April 2011, delayed contrast-enhanced MRI was performed for patients who had maintained a complete response to curative radiotherapy for oesophageal cancer for more than 6 months. The patients received radiotherapy with a median total dose of 66 Gy (60-70 Gy) for the primary tumour and metastatic lymph nodes. Images of MRI were analysed by a 17-segment method recommended by the American Heart Association. A segment included mainly in the 40 Gy dose line was defined as Segment 40 Gy, a segment included mainly in the 60 Gy dose line as Segment 60 Gy, and a segment out of the radiation fields as Segment OUT. The percentage of late gadolinium enhancement (LGE) was examined in those categories. The layer in which LGE was predominantly distributed was evaluated for each patient. RESULTS Four hundred and eight segments in 24 patients were analysed. The median interval from completion of radiotherapy to MRI was 23.5 months (range 6-88 months). LGE was detected in 12 of the 24 patients. LGE was detected in 15.38% of Segment 40 Gy cases, 21.21% of Segment 60 Gy cases, and 0% of Segment OUT cases. LGE in mid-myocardial and subendocardial layers was detected in 11 patients and one patient, respectively. CONCLUSION LGE suggesting radiation induced myocardial fibrosis was observed by performing delayed contrast-enhanced MRI. Care should be taken when planning radiotherapy to avoid late cardiac damage.
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Affiliation(s)
- R Umezawa
- Department of Radiation Oncology, Tohoku University School of Medicine, Sendai, Japan.
| | - H Ota
- Department of Diagnostic Radiology, Tohoku University School of Medicine, Sendai, Japan
| | - K Takanami
- Department of Diagnostic Radiology, Tohoku University School of Medicine, Sendai, Japan
| | - A Ichinose
- Department of Diagnostic Radiology, Tohoku University School of Medicine, Sendai, Japan
| | - H Matsushita
- Department of Radiation Oncology, Tohoku University School of Medicine, Sendai, Japan
| | - H Saito
- Department of Diagnostic Image Analysis, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - K Takase
- Department of Diagnostic Radiology, Tohoku University School of Medicine, Sendai, Japan
| | - K Jingu
- Department of Radiation Oncology, Tohoku University School of Medicine, Sendai, Japan
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Umezawa R, Takanami K, Ota H, Kaneta T, Kadoya N, Fujita Y, Arai A, Arai K, Matsushita H, Takase K, Jingu K. Assessment of Myocardial Metabolic Disorder Associated With Mediastinal Radiation Therapy for Esophageal Cancer. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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12
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Kato K, Ohno Y, Kamimura T, Kusumoto H, Tochigi T, Jinnouchi F, Kohno K, Kuriyama T, Henzan H, Takase K, Kawano I, Kadowaki M, Nawata R, Muta T, Eto T, Iawasaki H, Ohshima K, Miyamoto T, Akashi K. Long-term remission after high-dose chemotherapy followed by auto-SCT as consolidation for intravascular large B-cell lymphoma. Bone Marrow Transplant 2014; 49:1543-4. [DOI: 10.1038/bmt.2014.189] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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13
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Mugikura S, Kikuchi H, Fujii T, Murata T, Takase K, Mori E, Marinković S, Takahashi S. MR imaging of subcallosal artery infarct causing amnesia after surgery for anterior communicating artery aneurysm. AJNR Am J Neuroradiol 2014; 35:2293-301. [PMID: 25082820 DOI: 10.3174/ajnr.a4057] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE During surgery to treat an aneurysm in the anterior communicating artery, injury to the subcallosal artery, a perforator of the anterior communicating artery, may lead to infarction that produces basal forebrain amnesia after surgery. Our purpose was to examine whether 3D MR imaging can detect subcallosal artery infarction in patients with amnesia after surgery for an anterior communicating artery aneurysm. MATERIALS AND METHODS We evaluated 3D-T2-weighted MR images obtained a median of 4 months after treatment of anterior communicating artery aneurysm for the presence of infarcted foci in 10 consecutive patients with postoperative amnesia. Because the subcallosal artery and its neighboring perforator, the recurrent artery of Heubner, were considered the most easily affected vessels during that surgery, we focused mainly on 8 regions of the subcallosal artery territory per hemisphere and 5 regions of the recurrent artery of Heubner territory per hemisphere. RESULTS All 10 patients had infarcts in the territory of the subcallosal artery (median, 9 regions per patient), and most were bilateral (9 of 10 patients). Five patients had additional infarcted foci in the territory of the recurrent artery of Heubner (median, 1 region per patient), all unilateral. Among the regions perfused by the subcallosal artery, the column of the fornix was involved in all patients; the anterior commissure, in 9; and the paraterminal gyrus, in 8 patients. CONCLUSIONS 3D MR imaging revealed subcallosal artery infarction, the distribution of which was mostly bilateral, presumably owing to the unpairedness of that artery, in patients with postoperative amnesia after anterior communicating artery aneurysm repair.
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Affiliation(s)
- S Mugikura
- From the Departments of Diagnostic Radiology (S. Mugikura, T.M., K.T., S.T.)
| | - H Kikuchi
- Behavioral Neurology and Cognitive Neuroscience (H.K., T.F., E.M.), Tohoku University, Graduate School of Medicine, Sendai, Japan
| | - T Fujii
- Behavioral Neurology and Cognitive Neuroscience (H.K., T.F., E.M.), Tohoku University, Graduate School of Medicine, Sendai, Japan
| | - T Murata
- From the Departments of Diagnostic Radiology (S. Mugikura, T.M., K.T., S.T.)
| | - K Takase
- From the Departments of Diagnostic Radiology (S. Mugikura, T.M., K.T., S.T.)
| | - E Mori
- Behavioral Neurology and Cognitive Neuroscience (H.K., T.F., E.M.), Tohoku University, Graduate School of Medicine, Sendai, Japan
| | - S Marinković
- Institute of Anatomy (S. Marinković), School of Medicine, University of Belgrade, Belgrade, Serbia
| | - S Takahashi
- From the Departments of Diagnostic Radiology (S. Mugikura, T.M., K.T., S.T.)
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Takase K, Horton SC, Ganesha A, Das S, McHugh A, Emery P, Savic S, Buch MH. What is the utility of routine ANA testing in predicting development of biological DMARD-induced lupus and vasculitis in patients with rheumatoid arthritis? Data from a single-centre cohort. Ann Rheum Dis 2014; 73:1695-9. [PMID: 24854356 DOI: 10.1136/annrheumdis-2014-205318] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVE To determine whether serial ANA testing predicts biological disease modifying antirheumatic drugs (bDMARD)-associated ANA/dsDNA production in patients with rheumatoid arthritis (RA). METHODS Serial autoantibody profiles, bDMARD treatment sequences and clinical data were collected from patients identified from our database that since 2005 received (i) a first bDMARD (tumour necrosis factor inhibitor (TNFi)) and (ii) tocilizumab and/or abatacept. RESULTS Of over 1000 patients, 454 RA patients received a first TNFi. Infliximab group demonstrated higher ANA seroconversion rates (31.2%) compared with etanercept (11.8%) and adalimumab (16.1%) (p<0.001). Median (range) treatment duration prior to ANA seroconversion was 10.9 (1.3-80.0) months. Positive anti-dsDNA titres of IgG class (median (range) of 77 IU/mL (65-109)) were noted in six (7.2%) patients, within a median (range) of 2.0 (0.8-4.2) years. Three patients developed classifiable lupus. 4 of 74 (5.4%) primary non-responders and 24 of 111 (21.6%) secondary non-responders developed positive ANA antibodies after TNFi initiation (p=0.003). Seven (9.5%) tocilizumab-treated patients changed to positive ANA; five (8.6%) abatacept-treated patients changed to positive ANA status. CONCLUSIONS This study demonstrates no utility of serial ANA/dsDNA testing that could be used to predict onset of seroconversion and therefore the development of lupus/vasculitis. An association however between seroconversion and the development of a secondary non-response to bDMARD therapy is suggested.
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Affiliation(s)
- K Takase
- Leeds Institute of Rheumatic & Musculoskeletal Medicine, University of Leeds, Leeds, UK
| | - S C Horton
- Leeds Institute of Rheumatic & Musculoskeletal Medicine, University of Leeds, Leeds, UK NIHR Leeds Musculoskeletal Biomedical Research Unit, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - A Ganesha
- Department of Clinical Immunology, St. James's University Hospital, Leeds, UK
| | - S Das
- Leeds Institute of Rheumatic & Musculoskeletal Medicine, University of Leeds, Leeds, UK NIHR Leeds Musculoskeletal Biomedical Research Unit, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - A McHugh
- Department of Clinical Immunology, St. James's University Hospital, Leeds, UK
| | - P Emery
- Leeds Institute of Rheumatic & Musculoskeletal Medicine, University of Leeds, Leeds, UK NIHR Leeds Musculoskeletal Biomedical Research Unit, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - S Savic
- NIHR Leeds Musculoskeletal Biomedical Research Unit, Leeds Teaching Hospitals NHS Trust, Leeds, UK Department of Clinical Immunology, St. James's University Hospital, Leeds, UK
| | - M H Buch
- Leeds Institute of Rheumatic & Musculoskeletal Medicine, University of Leeds, Leeds, UK NIHR Leeds Musculoskeletal Biomedical Research Unit, Leeds Teaching Hospitals NHS Trust, Leeds, UK
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Morosawa Y, Naito A, Watanabe T, Takano Y, Takase K. Magnetic properties of the layered oxypnictides (LnO)MnAs (Ln = La, Ce, Pr, Nd). EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20147507004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Biedermann GW, Takase K, Wu X, Deslauriers L, Roy S, Kasevich MA. Zero-dead-time operation of interleaved atomic clocks. Phys Rev Lett 2013; 111:170802. [PMID: 24206471 DOI: 10.1103/physrevlett.111.170802] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2013] [Indexed: 06/02/2023]
Abstract
We demonstrate a zero-dead-time operation of atomic clocks. This clock reduces sensitivity to local oscillator noise, integrating as nearly 1/τ whereas a clock with dead time integrates as 1/τ(1/2) under identical conditions. We contend that a similar scheme may be applied to improve the stability of optical clocks.
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Affiliation(s)
- G W Biedermann
- Physics Department, Stanford University, Stanford, California 94305, USA
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17
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Umezawa R, Jingu K, Takase K, Ota H, Takanami K, Kaneta T, Takeda K, Matsushita H, Takahashi S. Magnetic Resonance Imaging Findings of Radiation-Induced Myocardial Damage in Patients With Esophageal Cancer. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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18
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Rakieh C, Saleem B, Takase K, Nam JL, Keen H, Wakefield RJ, Emery P. THU0136 Long Term Outcomes of Stopping Tumour Necrosis Factor Inhibitors (TNFI) in Patients with Established Rheumatoid Arthritis (RA) Who are in Sustained Remission: Is it Worth the Risk? Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.664] [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: 11/03/2022]
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19
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Kishimoto D, Ihata A, Watanabe R, Watanabe T, Terauchi K, Kobayashi K, Uehara T, Takase K, Hama M, Yoshimi R, Ueda A, Takeno M, Ishigatsubo Y. THU0171 Therapeutic response of lupus nephritis based on pathological findings in yokohama city university hospital:. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.2136] [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]
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20
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Yoshimi R, Ihata A, Kishimoto D, Watanabe R, Uehara T, Takase K, Hama M, Asami Y, Ueda A, Takeno M, Ishigatsubo Y. SAT0519 Total Power Doppler Score-8 is a Useful Diagnostic Marker of Musculoskeletal Ultrasonography for Screening and Activity Measurement of Rheumatoid Arthritis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.2243] [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: 11/04/2022]
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21
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Yoshimi R, Hama M, Takase K, Sugiyama Y, Kishimoto D, Watanabe R, Uehara T, Asami Y, Ihata A, Ueda A, Takeno M, Ishigatsubo Y. SAT0520 Ultrasonography is Useful for Predicting Boolean Remission after Achieving DAS28-Based Clinical Remission of Rheumatoid Arthritis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.2244] [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: 11/04/2022]
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22
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Takase K, Horton SC, Ganesha A, Das S, Emery P, Savic S, Buch MH. AB0274 What is the utility of routine ana testing in predicting development of biological dmard-induced lupus/vasculitis in patients with rheumatoid arthritis? Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.2596] [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]
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23
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Takase K, Darisuren T, Hama M, Uehara T, Yoshimi R, Ihata A, Ueda A, Takeno M, Ishigatsubo Y. SAT0403 Ultrasound in the diagnosis of rheumatoid arthritis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.3349] [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: 11/04/2022]
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24
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Ihata A, Hagiyama H, Nagaoka S, Obata J, Miyachi K, Yamada H, Hirohata S, Koido N, Yamasaki M, Miyagi K, Ohno S, Kishimoto D, Takase K, Hama M, Yoshimi R, Ueda A, Takeno M, Ishigatsubo Y. FRI0104 Cohort study of infectious disease risk management in RA patients receiving tocilizumab at 48 weeks (ACT4U-study48). Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.2561] [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]
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25
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Yoshimi R, Takase K, Hama M, Kishimoto D, Terauchi K, Watanabe R, Uehara T, Samukawa S, Ihata A, Ueda A, Takeno M, Ishigatsubo Y. FRI0065 Residual power doppler signals during clinical remission determine joint prognosis in rheumatoid arthritis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.2522] [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: 11/04/2022]
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Uehara T, Takeno M, Terauchi K, Kishimoto D, Takase K, Hama M, Ihata A, Ueda A, Ishigatsubo Y. THU0408 Deep inspiratory breath hold PET/CT is useful for monitoring of activity in rheumatic disease associated lung interstitial pneumonitis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.2373] [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: 11/04/2022]
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Das S, Takase K, Dass S, Buch MH, Vital E, Emery P. AB0333 Overall response pattern of rituximab in ra-single centre experience. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.2655] [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: 11/04/2022]
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Kikuchi T, Tan H, Mihara T, Uchimoto K, Mitsushima D, Takase K, Morita S, Goto T, Andoh T, Kamiya Y. Effects of volatile anesthetics on the circadian rhythms of rat hippocampal acetylcholine release and locomotor activity. Neuroscience 2013; 237:151-60. [DOI: 10.1016/j.neuroscience.2013.01.062] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2012] [Revised: 01/21/2013] [Accepted: 01/22/2013] [Indexed: 10/27/2022]
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Affiliation(s)
- K. Takase
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - K. Yamamoto
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
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Inaba H, Kamikura T, Takase K, Omi W, Sakagami S, Myojo Y, Taniguchi J. CPR initiated after telephone-assisted instruction produces a better outcome of bystander-witnessed out-of-hospital cardiac arrests than no bystander CPR but is less effective than CPR on the bystander's own initiative. Crit Care 2012. [PMCID: PMC3363688 DOI: 10.1186/cc10877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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31
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Okamoto K, Kodama K, Takase K, Nakamoto K, Coffey H, Selvaraj A, Smith P, Iwata M, Tsuruoka A. 307 Anti-tumor Activities of Lenvatinib Against RET Gene Fusion Driven Tumor Models. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)72105-6] [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: 11/24/2022]
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Miki T, Wang X, Aoki T, Imai Y, Ishikawa T, Takase K, Yamaguchi T. Patient-specific modelling of pulmonary airflow using GPU cluster for the application in medical practice. Comput Methods Biomech Biomed Engin 2012; 15:771-8. [DOI: 10.1080/10255842.2011.560842] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Christophe JJ, Ishikawa T, Imai Y, Takase K, Thiriet M, Yamaguchi T. Hemodynamics in the pulmonary artery of a patient with pneumothorax. Med Eng Phys 2012; 34:725-32. [DOI: 10.1016/j.medengphy.2011.09.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2011] [Revised: 09/09/2011] [Accepted: 09/17/2011] [Indexed: 10/17/2022]
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Daimon M, Kato T, Kaino W, Takase K, Karasawa S, Wada K, Kameda W, Susa S, Oizumi T, Tomita Y, Kato T. Thyroid Dysfunction in Patients Treated with Tyrosine Kinase Inhibitors, Sunitinib, Sorafenib and Axitinib, for Metastatic Renal Cell Carcinoma. Jpn J Clin Oncol 2012; 42:742-7. [DOI: 10.1093/jjco/hys076] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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35
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Inaba H, Takase K, Nishi T, Kamikura T, Wato Y, Hamada H. Don't stop your heart in front of your family: family as a bystander is associated with poor outcome of bystander-witnessed, bystander-CPR-performed out-of-hospital cardiac arrest. Crit Care 2012. [PMCID: PMC3363690 DOI: 10.1186/cc10879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- H Inaba
- Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - K Takase
- Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - T Nishi
- Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - T Kamikura
- Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - Y Wato
- Kanazawa Medical University, Uchinada, Japan
| | - H Hamada
- Suzu General Hospital, Suzu, Japan
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Takase K, Ohno S, Takeno M, Hama M, Kirino Y, Ihata A, Ideguchi H, Mochida Y, Tateishi U, Shizukuishi K, Nagashima Y, Aoki I, Ishigatsubo Y. Simultaneous evaluation of long-lasting knee synovitis in patients undergoing arthroplasty by power Doppler ultrasonography and contrast-enhanced MRI in comparison with histopathology. Clin Exp Rheumatol 2012; 30:85-92. [PMID: 22325923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2011] [Accepted: 09/20/2011] [Indexed: 05/31/2023]
Abstract
OBJECTIVES We simultaneously assessed ultrasonography (US) and magnetic resonance imaging (MRI) in comparison with histopathological changes in the knee joints of long-lasting arthritis patients. METHODS We studied 15 patients with rheumatoid arthritis and 5 patients with osteoarthritis, who underwent total knee arthroplasty. On the day before surgery, the joints were examined by US and contrast-enhanced MRI. In US, synovitis was graded with 0-3 grey scale (GSUS) and power Doppler (PDUS). In MRI, synovitis was graded according to OMERACT-RAMRIS (grade 0-3). Synovial tissue samples were obtained during arthroplasty and evaluated on the basis of inflammatory cell infiltrates (grade 0-3), synovial lining layer thickness (grade 0-3) and vascularity (grade 0-3). RESULTS Positive findings of PDUS and contrast-enhanced MRI were 45% and 85% of 20 operated joints, respectively. GSUS, PDUS and MRI synovitis were well correlated with overall histopathological grades of synovitis (Spearman correlation coefficients 0.48, 0.84 and 0.48, p<0.05, p<0.01 and p<0.05, respectively). Moreover, positive PDUS findings were closely associated with all pathological comportments of synovitis including inflammatory cell infiltrates, synovial lining layer thickness and vascularity. CONCLUSIONS The present study revealed that positive PDUS findings more faithfully illustrated active synovitis than MRI, whereas contrast-enhanced MRI was more sensitive in detecting synovitis in patients with long-lasting arthritis. It is important to understand distinct features of the both modalities for clinical assessment of chronic joint diseases.
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Affiliation(s)
- K Takase
- Department of Internal Medicine and Clinical Immunology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
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Uenoyama Y, Inoue N, Pheng V, Homma T, Takase K, Yamada S, Ajiki K, Ichikawa M, Okamura H, Maeda KI, Tsukamura H. Ultrastructural evidence of kisspeptin-gonadotrophin-releasing hormone (GnRH) interaction in the median eminence of female rats: implication of axo-axonal regulation of GnRH release. J Neuroendocrinol 2011; 23:863-70. [PMID: 21815953 DOI: 10.1111/j.1365-2826.2011.02199.x] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.4] [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] [Indexed: 01/08/2023]
Abstract
The present study was conducted to determine the morphological and functional interaction between kisspeptin and gonadotrophin-releasing hormone (GnRH) neuronal elements at the median eminence in female rats to clarify a possibility that kisspeptin directly stimulates GnRH release at the nerve end. A dual immunoelectron microscopic study of kisspeptin and GnRH showed that the kisspeptin-immunoreactive nerve element directly abutted the GnRH-immunoreactive nerve element, although no obvious synaptic structure was found between kisspeptin and GnRH neurones in the median eminence. The current retrograde tracing study with FluoroGold (FG) indicates that kisspeptin neurones are not in contact with fenestrated capillaries because no FG signal was found in kisspeptin neurones when the FG was injected peripherally. This peripheral FG injection revealed the neuroendocrine neurones projecting to the median eminence because FG-positive GnRH neuronal cell bodies were found in the preoptic area. Synthetic rat kisspeptin (1-52)-amide stimulated GnRH release from the median eminence tissues in a dose-dependent manner. Thus, the present results suggest that kisspeptin at least partly exerts stimulatory effects on GnRH release from the neuronal terminals of GnRH neurones by axo-axonal nonsynaptic interaction in the median eminence.
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Affiliation(s)
- Y Uenoyama
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan.
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Abstract
We demonstrate a cold-atom interferometer gyroscope which overcomes accuracy and dynamic range limitations of previous atom interferometer gyroscopes. We show how the instrument can be used for precise determination of latitude, azimuth (true north), and Earth's rotation rate. Spurious noise terms related to multiple-path interferences are suppressed by employing a novel time-skewed pulse sequence. Extended versions of this instrument appear capable of meeting the stringent requirements for inertial navigation, geodetic applications of Earth's rotation rate determination, and tests of general relativity.
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Affiliation(s)
- J K Stockton
- Department of Physics, Stanford University, California 94305-4060, USA
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Yuki M, Takase K, Ishida T, Sekine S, Miura A. 3629 POSTER Amount of Cyclophosphamide Excreted in the Urine of Patients During the 48h After Chemotherapy and Secondary Enviromental Contamination of Home Settings Due to the Drug. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)71226-6] [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: 11/25/2022]
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40
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Takase K, Shinmura K, Kono R, Kumakura T. Therapeutic results of the modified Cadenat procedure for acromioclavicular joint separations compared with the modified Dewar procedure. W INDIAN MED J 2011; 60:303-307. [PMID: 22224343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
AIM AND BACKGROUND The surgical treatment for acromioclavicular joint dislocations is recommended for Rockwood's classification types 4, 5 and 6. In this study we evaluate the therapeutic results of the modified Cadenat procedure on type 5 acromioclavicular joint dislocation, and report on a comparative study of the modified Dewar procedure also on type 5 acromioclavicular joint dislocation. SUBJECTS AND METHODS The modified Cadenat procedure was performed on 73 patients (66 males and 7 females, group C). The mean age at the time of the surgery was 35.4 years. On the other hand, the modified Dewar procedure was performed on 55 patients (51 males and 4 females, group D). The mean age at the time of the surgery was 34.5 years. RESULTS The mean therapeutic results were 28.2 points in group C and 27.3 in group D according to the UCLA scoring system. In group C, the subluxation that represented less than 5 mm superior translation of the clavicle, occurred only in 18 of 73 patients. Meanwhile, in group D, the subluxation that represented less than 5 mm, occurred only in 14; that which represented 5 to 10 mm was in seven patients, and the complete dislocation occurred in three patients. Also, the occurrence of osteoarthritic changes in the acromioclavicular joint was nine patients in group C and 20 in group D, respectively. CONCLUSION The modified Cadenat procedure could provide satisfactory therapeutic results and avoid postoperative failure of reduction compared to the modified Dewar procedure. However the modified Cadenat procedure does not aim to restore the anatomical coracoclavicular ligaments. It is believed that anatomic restoration of both coracoclavicular ligaments could best restore the function of the acromioclavicular joint.
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Affiliation(s)
- K Takase
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan.
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Meguro K, Itoh M, Yanai K, Takase K, Yamaguchi S, Ido T, Yamadori A. Psychiatric wandering behaviour in dementia patients correlated with increased striatal dopamine D2 receptor as shown by [11C]YM-09151-2 and positron emission tomography. Eur J Neurol 2011. [DOI: 10.1111/j.1468-1331.1997.tb00338.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Takase K, Yamamoto K. Traumatic mechanisms and therapeutic results of the perilunate injuries. W INDIAN MED J 2011; 60:73-76. [PMID: 21809716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
OBJECTIVE In this study, eighteen patients who have had perilunate injury with dislocation or fracture, were evaluated and the patho-mechanics and surgical treatment were studied. SUBJECTS AND METHODS According to the Green and O'Brien's classification, type 1 injury occurred in one patient, type 2 in nine, type 4A in five, type 4C in one and type 4D in one. The other one case could not be classified using the Green and O'Brien's criteria. RESULTS According to the Evans scoring system, good results were achieved in thirteen patients, fair results, in four, poor results in one and very poor results in none. When the patho-mechanics was estimated based on the Mayfield's criteria, seventeen patients were classified as stage 3. However only one case was extremely unusual and should be classified as a subtype of stage 2. CONCLUSION The results were good in the majority of patients who had repair of perilunate injury.
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Affiliation(s)
- K Takase
- Department of Orthopedic Surgery, Tokyo Medical University 6-7-1 Nishishinjuku Shinjuku-ku- Tokyo 160-0023, Japan.
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Takase K. Oral steroid therapy for frozen shoulder. W INDIAN MED J 2010; 59:674-679. [PMID: 21702241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
BACKGROUND Since frozen shoulder is characterized by spontaneous recovery, no precise treatment strategy exists. Both conservative therapy and arthroscopic surgery is available, but the time required for recovery varies considerably. This study looks at the possible early symptom relief with oral steroid therapy. SUBJECTS AND METHODS The subjects were 76 patients aged 33 to 73 years at the beginning of the study. The duration of the frozen shoulder was one to 15 months (mean 5.7 months) and hypertension was noted in 13 patients as a complicated disorder. A single course of steroid therapy consisted of a total dose of 105 mg of prednisolone over approximately a three-week period by the dose-tapering method. The number of courses varied with the degree of symptom relief but the rest period between courses was always approximately four weeks. The results were assessed on the basis of the Japanese Orthopaedic Association (JOA) score, but the principal evaluations were pain and range of motion. RESULTS The average ranges of motion before treatment were 102.8 degrees of forward flexion 11.3 degrees of external rotation and internal, rotation was at the buttocks. However, after one course of treatment, forward flexion was 136 degrees, external rotation was 33.7 degrees, and internal rotation was limited to the buttocks in only six cases. CONCLUSION The results of oral steroid therapy for frozen shoulder were highly satisfactory. However, sufficient care is required in explaining the method of administration and the adverse effects such as the osteonecrosis of the femoral head or osteoporosis.
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Affiliation(s)
- K Takase
- Department of Orthopaedic Surgery, Tokyo Medical University, Tokyo, Japan.
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Shigeto H, Fujii M, Morioka T, Hagiwara K, Kanamori Y, Somehara Y, Takase K, Onitsuka T, Hironaga N, Sakata A, Tobimatsu S, Kira J. P25-20 Patients with posterior basal temporal lobe epileptic discharge revealed by MEG. Clin Neurophysiol 2010. [DOI: 10.1016/s1388-2457(10)61042-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Obi T, Matsumoto M, Miyazaki K, Kitsutaka K, Tamaki M, Takase K, Miyamoto A, Oka T, Kawamoto Y, Nakada T. Skeletal Ryanodine Receptor 1-Heterozygous PSE (Pale, Soft and Exudative) Meat Contains a Higher Concentration of Myoglobin than Genetically Normal PSE Meat in Pigs. Asian Australas J Anim Sci 2010. [DOI: 10.5713/ajas.2010.90542] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Morimoto R, Kudo M, Murakami O, Takase K, Ishidoya S, Nakamura Y, Ishibashi T, Takahashi S, Arai Y, Suzuki T, Sasano H, Ito S, Satoh F. Difficult-to-control hypertension due to bilateral aldosterone-producing adrenocortical microadenomas associated with a cortisol-producing adrenal macroadenoma. J Hum Hypertens 2010; 25:114-21. [PMID: 20463748 PMCID: PMC3023071 DOI: 10.1038/jhh.2010.35] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The patient was a 54-year-old woman who developed a right adrenal tumour, Cushingoid features, elevated levels of cortisol that were not suppressed by 1 nor 8 mg of dexamethasone, and suppression of adrenocorticotropin (ACTH) during treatment for severe hypertension. Computed tomography (CT) revealed a right adrenal tumour and an atrophic left adrenal gland. In addition, elevated plasma aldosterone concentration (PAC) and suppressed plasma renin activity (PRA) with an aldosterone-to-renin ratio of 128 (ng per 100 ml per ng ml–1 h−1) suggested aldosterone excess. Urinary excretion of aldosterone was relatively high, and the captopril and rapid ACTH tests resulted in no response of PRA and exaggerated increase in PAC, respectively. ACTH-loaded adrenal venous sampling showed bilateral excess of aldosterone with right predominance of cortisol. Right laparoscopic partial adrenalectomy (ADX) and immunohistochemical analysis showed both a cortisol-producing adenoma and an aldosterone-producing microadenoma (microAPA) within the attached adrenal, which had not been detected by CT preoperatively. After the right partial ADX, her blood pressure, aldosterone level and suppressed PRA remained unchanged. Subsequently, laparoscopic total left ADX was performed. Two microAPAs with paradoxical hyperplasia were revealed within the apparently atrophic left adrenal gland. Soon after the second surgery, her blood pressure normalized without requiring any anti-hypertensive medication.
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Affiliation(s)
- R Morimoto
- Division of Nephrology, Endocrinology, and Vascular Medicine, Department of Medicine, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
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Ideguchi H, Ohno S, Takase K, Kirino Y, Suda A, Ihata A, Ueda A, Takeno M, Nagaoka S, Ishigatsubo Y. Completion rate and compliance of anti-tuberculosis chemoprophylaxis in patients with rheumatic disease receiving tumor necrosis factor antagonists. Clin Exp Rheumatol 2010; 28:294-295. [PMID: 20483059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2009] [Accepted: 12/04/2009] [Indexed: 05/29/2023]
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Takase K, Suzuki H, Matsuoka H. The usefulness of latissimus dorsi transfer for reconstruction for malignant fibrous histiocytoma in the infraspinatus muscle region: a case report. W INDIAN MED J 2010; 59:106-109. [PMID: 20931927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Malignant fibrous histiocytoma (MFH) is a type of highly malignant soft tissue sarcoma with a predilection for the extremities of adults. We report a patient with MFH in the infraspinatus muscle for which wide resection including total resection of the infraspinatus muscle was performed, followed by transfer of the latissimus dorsi muscle for shoulder reconstruction in a one-stage operation with good postoperative function.
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Affiliation(s)
- K Takase
- Department of Orthopaedic Surgery, Tokyo Medical University, Tokyo, Japan.
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Takase K. Pathology and therapeutic results in patients with intraosseous ganglia of the carpal bone. W INDIAN MED J 2010; 59:55-58. [PMID: 20931915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
This study evaluated the pathology and therapeutic results of seven patients with intraosseous ganglia of the carpal bone. The mean age at the time of surgery was 27.6 years. The lesions were localized in the proximal carpal row in six patients and in the distal carpal row in only one. Surgical treatment was performed in all patients with good bone union. None had pain during activity or at rest and no recurrence had occurred. The intraosseous ganglia in four patients was of the idiopathic type, and in the other three patients was of the penetrating type. Although intraosseous ganglia of the carpal bone is reported as a rare disease, there were 159 cases in the literature. The pathology was intra- or extraosseous development, showing variation, but most cases were localized in the proximal carpal row.
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Affiliation(s)
- K Takase
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, 671 Nishishinjuku, Shinjuku, Tokyo, Japan 060-0023.
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Ohkura S, Takase K, Matsuyama S, Mogi K, Ichimaru T, Wakabayashi Y, Uenoyama Y, Mori Y, Steiner RA, Tsukamura H, Maeda KI, Okamura H. Gonadotrophin-releasing hormone pulse generator activity in the hypothalamus of the goat. J Neuroendocrinol 2009; 21:813-21. [PMID: 19678868 DOI: 10.1111/j.1365-2826.2009.01909.x] [Citation(s) in RCA: 165] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Pulsatile release of gonadotrophin-releasing hormone (GnRH) is indispensable to maintain normal gonadotrophin secretion. The pulsatile secretion of GnRH is associated with synchronised electrical activity in the mediobasal hypothalamus (i.e. multiple unit activity; MUA), which is considered to reflect the rhythmic oscillations in the activity of the neuronal network that drives pulsatile GnRH secretion. However, the cellular source of this ultradian rhythm in GnRH activity is unknown. Direct input from kisspeptin neurones in the arcuate nucleus (ARC) to GnRH cell bodies in the medial preoptic area or their terminals in the median eminence could be the intrinsic source for driving the GnRH pulse generator. To determine whether kisspeptin signalling could be responsible for producing pulsatile GnRH secretion, we studied goats, measured plasma levels of luteinising hormone (LH) and recorded MUA in the posterior ARC, where the majority of kisspeptin neuronal cell bodies are located. Rhythmic volleys of MUA were found to be accompanied by LH pulses with regular intervals in the ARC, where kisspeptin neuronal cell bodies were found. Exogenous administration of kisspeptin stimulated a sustained increase in LH secretion, without influencing MUA, suggesting that the GnRH pulse generator, as reflected by MUA, originated from outside of the network of GnRH neurones, and could plausibly reflect the pacemaker activity of kisspeptin neurones, whose projections reach the median eminence where GnRH fibres project. These observations suggest that the kisspeptin neurones in the ARC may be the intrinsic source of the GnRH pulse generator.
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Affiliation(s)
- S Ohkura
- Laboratory of Neurobiology, National Institute of Agrobiological Sciences, Tsukuba, Japan.
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