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Hashimoto N, Uchiyama S, Nakazawa T, Iwasaki T, Hashimoto T. POS0707 SALIVARY GLAND ULTRASONOGRAPHY AND THE CLINICAL FEATURES USING ESSDAI IN PATIENTS OF EARLY-ONSET VERSUS LATE-ONSET WITH PRIMARY SJÖGREN’S SYNDROME. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Primary Sjögren’s syndrome (pSS) is a chronic inflammatory autoimmune disease characterized by lymphocyte infiltration in salivary and lacrimal glands. pSS affects primarily middle-aged and elderly patients, although younger age groups may also be involved. However, differences of etiology and pathogenesis between early-onset pSS (EOpSS) and late-onset pSS (LOpSS) are unknown. Recently, standardized outcome tools for measuring disease-specific activity and patients’ reported symptoms have been formulated by the European League Against Rheumatism (EULAR) SS study group: the EULAR SS Disease Activity Index (ESSDAI) for systemic features of pSS [1]. Also, as the new imaging techniques, salivary gland ultrasonography (SGUS) proved valuable for assessing salivary gland involvement in SS and seemed to exhibit good diagnostic properties. In addition, previous studies have demonstrated usefulness of SGUS for the prognostic stratification of patients with pSS [2], [3], [4].Objectives:The aim of this study was to examine the differences of etiology and pathogenesis between EOpSS and LOpSS using ESSDAI and SGUS.Methods:Fifty-six pSS patients who fulfilled the American College of Rheumatology (ACR) / European League Against Rheumatism (EULAR) classification criteria for SS were studied. Based on the disease onset age, all pSS patients were divided into two groups as those with the onset age of 40 years old or younger (EOpSS: n=26) and those with the onset age of older than 65 years old (LOpSS: n=30). The clinical findings were evaluated ESSDAI and OMERACT SGUS score at the first visit to our hospital. The ESSDAI (0–123) proposes the evaluation of 12 domains or organ systems (constitutional, lymphadenopathy, glandular, articular, cutaneous, pulmonary, renal, peripheral nervous system, central nervous system, muscular, hematological and biology). All patients were examined SGUS by a single investigator who was blinded to device (TUS-A300; Canon Medical Systems, Tokyo, Japan) with a linear transducer (7.5-10MHz). The OMERACT SGUS score was used for graded changes in the parenchymal homogeneity of salivary glands: grade 0, normal-appearing salivary gland parenchyma; grade 1, minimal change: mild inhomogeneity without hypo/anechoic areas; grade 2, moderate change: moderate inhomogeneity with focal hypo/anechoic areas; grade 3, severe change: diffuse inhomogeneity with hypo/anechoic areas occupying the entire gland surface [5].Results:The proportions of positive sera of RF, anti-SS-A and anti-SS-B antibodies were not different in the two groups, but the disease activities were higher in the EOpSS than in the LOpSS patients by measuring ESSDAI (7.30 vs 4.23, p=0.008), especially in constitutional domain (1.50 vs 0.60, p=0.03), articular domain (1.54 vs 0.40, p=0.0002) and biological domain (1.35 vs 0.90, p=0.04). No difference in salivary secretion was found between two groups (EOpSS: 8.02 vs LOpSS: 6.31 mL/10min.), but the OMERACT SGUS score was higher in LOpSS than in EOpSS patients (2.00 vs 2.70, p=0.0002).Conclusion:Although serological findings were not different, EOpSS patients had higher disease activity but less severe salivary gland degeneration than that in LOpSS patients, suggesting the pathogenesis of these two groups was different.References:[1]Seror R, et al. Ann Rheum Dis. 2010 Jun;69(6):1103-9.[2]Arthritis Care Res (Hoboken). 2014 Jul;66(7):1102-7.[3]Hammenfors DS, et al. Clin Exp Rheumatol. 2015 Jan-Feb;33(1):56-62.[4]Milic V, et al. PLoS One. 2019 Dec 31;14(12): e0226498.[5]Jousse-Joulin S, et al. Ann Rheum Dis. 2019 Jul;78(7):967-973.Disclosure of Interests:None declared
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Tanaka K, Uehara T, Ohara T, Sato S, Hayakawa M, Kimura K, Okada Y, Hasegawa Y, Tanahashi N, Suzuki A, Nakagawara J, Arii K, Nagahiro S, Ogasawara K, Uchiyama S, Matsumoto M, Iihara K, Toyoda K, Minematsu K. Transient ischemic attack without self-awareness of symptoms witnessed by bystanders: analysis of the PROMISE-TIA registry. Eur J Neurol 2020; 28:509-515. [PMID: 32961590 PMCID: PMC7820962 DOI: 10.1111/ene.14550] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 09/14/2020] [Indexed: 11/30/2022]
Abstract
Background and purpose A transient ischemic attack (TIA) can occur without self‐awareness of symptoms. We aimed to investigate characteristics of patients with a tissue‐based diagnosis of TIA but having no self‐awareness of their symptoms and whose symptoms were witnessed by bystanders. Methods We used data from the multicenter registry of 1414 patients with a clinical diagnosis of TIA. For patients without evidence of ischemic lesions on imaging, clinical characteristics were compared between patients with and without self‐awareness of their TIA symptoms. Results Among 896 patients (559 men, median age of 70 years), 59 (6.6%) were unaware of their TIA symptoms, but had those symptoms witnessed by bystanders. Patients without self‐awareness of symptoms were older and more frequently female, and more likely to have previous history of stroke, premorbid disability, and atrial fibrillation, but less likely to have dyslipidemia than those with self‐awareness. Patients without self‐awareness of symptoms arrive at hospitals earlier than those with self‐awareness (P < 0.001). ABCD2 score was higher in patients without self‐awareness of symptoms than those with self‐awareness (median 5 vs. 4, P = 0.002). Having no self‐awareness of symptoms was a significant predictor of ischemic stroke within 1 year after adjustment for sex, ABCD2 score, and onset to arrival time (hazard ratio = 2.44, 95% confidential interval: 1.10–4.83), but was not significant after further adjustment for arterial stenosis or occlusion. Conclusions Patients with a TIA but having no self‐awareness of their symptoms might have higher risk of subsequent ischemic stroke rather than those with self‐awareness, suggesting urgent management is needed even if patients have no self‐awareness of symptoms.
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Affiliation(s)
- K Tanaka
- Department of Cerebrovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan.,Department of Neurology, Graduate School of Medical Sciences, Neurological Institute, Kyushu University, Fukuoka, Japan
| | - T Uehara
- Department of Cerebrovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan
| | - T Ohara
- Department of Cerebrovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan
| | - S Sato
- Department of Cerebrovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan
| | - M Hayakawa
- Department of Cerebrovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan
| | - K Kimura
- Department of Stroke Medicine, Kawasaki Medical School, Kurashiki, Japan
| | - Y Okada
- Department of Cerebrovascular Medicine and Neurology, Clinical Research Institute, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Y Hasegawa
- Department of Neurology, Nagoya Daini Red Cross Hospital, Nagoya, Japan
| | - N Tanahashi
- Department of Neurology and Cerebrovascular Medicine, Saitama Medical University Saitama International Medical Center, Hidaka, Japan
| | - A Suzuki
- Department of Stroke Science, Research Institute for Brain and Blood Vessels-Akita, Akita, Japan
| | - J Nakagawara
- Department of Neurosurgery, Nakamura Memorial Hospital, Sapporo, Japan
| | - K Arii
- Department of Neurology, Ebara Hospital, Tokyo, Japan
| | - S Nagahiro
- Department of Neurosurgery, Tokushima University, Tokushima, Japan
| | - K Ogasawara
- Department of Neurosurgery, Iwate Medical University, Morioka, Japan
| | - S Uchiyama
- Department of Neurology, Tokyo Women's Medical University, Tokyo, Japan.,Clinical Research Center for Medicine, Center for Brain and Cerebral Vessels, Sanno Hospital and Sanno Medical Center, International University of Health and Welfare, Tokyo, Japan
| | - M Matsumoto
- Department of Clinical Neuroscience and Therapeutics, Hiroshima University, Hiroshima, Japan.,Department of Neurology, Sakai City Medical Center, Sakai, Japan
| | - K Iihara
- Department of Neurosurgery, National Cerebral and Cardiovascular Center, Suita, Japan
| | - K Toyoda
- Department of Cerebrovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan
| | - K Minematsu
- Department of Cerebrovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan
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Hashimoto N, Uchiyama S, Kitano M, Nakazawa T, Iwasaki T, Hashimoto T. SAT0546 COMPARISON OF SHEAR WAVE ELASTOGRAPHY AND CONVENTIONAL ULTRASONOGRAPHY OF SALIVARY GLANDS IN PATIENTS WITH PRIMARY SJOGREN’S SYNDROME: CAN SHEAR WAVE ELASTOGRAPHY CAPTURE LESIONS THAT ARE DIFFICULT TO DIAGNOSE WITH CONVENTIONAL ULTRASONOGRAPHY? Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Sjögren’s syndrome (SS) is a chronic inflammatory autoimmune disease characterized by lymphocyte infiltration in salivary and lacrimal glands. Recently, salivary gland ultrasonography (US) proved valuable for assessing salivary gland involvement in SS and seemed to exhibit good diagnostic properties. In the literature, studies conducted by the scoring of the structural changes according to B-Mode US of salivary glands showed a wide variability regarding sensitivity and specificity. Our previously study demonstrated that although conventional B-mode US findings were useful for the diagnosis of SS with low salivary flow they were not for subclinical SS with normal salivary flow (EULAR 2016). Recently, we reported that the tissue elasticity was decreased due to structural changes in the submandibular glands (SG) at the advanced stage of the disease and the shear wave elastography (SWE) is useful to distinguish pathological changes of the SG in patients with SS (EULAR2018).Objectives:The aim of this study was to compare the usefulness of SG conventional B-mode US and SWE findings in non-SS and SS patients classified by salivary flow.Methods:Twenty-two non-SS patients and 99 SS patients who fulfilled the American College of Rheumatology (ACR) / European League Against Rheumatism (EULAR) classification criteria for SS were studied. SS patients were divided into three groups according to salivary flow using gum test (VL/SS <5mL/10min. (n=38), L/SS 5-10mL/10min. (n=41) and N/SS >10mL/10min. (n=20)). All patients were examined SGUS by a single investigator who was blinded to device (TUS-A300; Canon Medical Systems, Tokyo, Japan) with a linear transducer (7.5-10MHz). The examination consisted of conventional B-mode US (US staging score), pulsed wave Doppler US (PD grading score) and SWE with quantitative assessment. US staging scores were assessed by glandular size, inhomogeneity and contrast of diagastric muscle (stage 0 to 3). PD grading scores were graded by pulsed wave pattern in pulsed wave Doppler US at the internal SG facial arteries (grade 0 to 2). With the region-of-interest (ROI) placed over the stiffest areas of the lesion on SWE, the quantitative means of the elasticity values were measured by shear wave velocity (Vs; m/s) and elasticity (E; kPa) for each lesion.Results:The US staging score, the PD grading score, the values of Vs and E were significantly higher in patients with SS than in non-SS group (SS vs non-SS; US staging score 2.10±1.07 vs 0.86±0.99, p<0.0001, PD grading score 1.17±0.83 vs 0.23±0.61, p<0.0001, Vs 1.75±0.34 vs 1.57±0.29m/s, p=0.02, E 9.64±4.02 vs 7.81±2.27kPa, p=0.04). However, there was no significant difference between non-SS and N/SS in early-stage SS by US staging score (N/SS vs non-SS; 0.95±0.89 vs 0.86±0.99) and PD grading score (N/SS vs non-SS; 0.40±0.15 vs 0.23±.061). In contrast, the values of Vs and E were highest in N/SS as compared with all groups, and were significantly higher in N/SS than in non-SS (N/SS vs non-SS; Vs 2.02±0.24 vs 1.57±0.29m/s, p<0.01, E 12.58±3.16 vs 7.81±2.27kPa, p<0.01).Conclusion:The present study demonstrated that although the tissue elasticity was decreased due to structural changes at the advanced stage, it increased due to inflammation and high viscosity in the SG at the subclinical SS with normal salivary flow comparing that in non-SS patients. The SWE may be a useful tool for the differential diagnosis between patients with non-SS and subclinical SS with normal salivary flow, which is difficult to distinguish by conventional B-mode US.Disclosure of Interests:None declared
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Kayano H, Nomura E, Abe R, Ueda Y, Machida T, Fujita C, Uchiyama S, Endo K, Murakami K, Mukai M, Makuuchi H. Low psoas muscle index is a poor prognostic factor for lower gastrointestinal perforation: a single-center retrospective cohort study. BMC Surg 2019; 19:181. [PMID: 31779610 PMCID: PMC6883515 DOI: 10.1186/s12893-019-0629-y] [Citation(s) in RCA: 3] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Accepted: 10/21/2019] [Indexed: 12/25/2022] Open
Abstract
Background Various body composition indices have been reported as prognostic factors for different cancers. However, whether body composition affects prognosis after lower gastrointestinal tract perforation requiring emergency surgery and multidisciplinary treatment has not been clarified. This study examined whether body composition evaluations that can be measured easily and quickly from computed tomography (CT) are useful for predicting prognosis. Methods Subjects comprised 64 patients diagnosed with perforation at final diagnosis after emergency surgery for a preoperative diagnosis of lower gastrointestinal tract perforation and penetration. They were divided into a survival group and a non-survival (in-hospital mortality) group and compared. Body composition indices (psoas muscle index (PMI); psoas muscle attenuation (PMA); subcutaneous adipose tissue index (SATI); visceral adipose tissue index (VATI); visceral-to-subcutaneous fat area ratio (VSR)) were measured from preoperative CT. Cross-sectional psoas muscle area at the level of the 3rd lumbar vertebra was quantified. Optimal cut-off values were calculated using receiver operating characteristic curve analysis. Poor prognostic factors were investigated from multivariate logistic regression analyses that included patient factors, perioperative factors, intraoperative factors, and body composition indices as explanatory variables. Results The cause of perforation was malignant disease in 12 cases (18.7%), and benign disease in 52 cases (81.2%). The most common cause was diverticulum of the large intestine. Emergency surgery for the 64 patients led to survival in 52 patients and death in 12 patients. On multivariate logistic regression analysis, independent predictors of poor prognosis were Sequential Organ Failure Assessment score (odds ratio 1.908; 95% confidence interval (CI) 1.235–3.681; P = 0.0020) and PMI (odds ratio 13.478; 95%CI 1.342–332.690; P = 0.0252). The cut-off PMI was 4.75 cm2/m2 for males and 2.89 cm2/m2 for females. Among survivors, duration of hospitalization was significantly longer in the low PMI group (29 days) than in the high PMI group (22 days, p = 0.0257). Conclusions PMI is easily determined from CT and allows rapid evaluation of prognosis following lower gastrointestinal perforation.
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Affiliation(s)
- Hajime Kayano
- Departments of General and Gastroenterological Surgery, Tokai University Hachioji Hospital, 1838 Ishikawa-machi, Hachioji, Tokyo, 192-0032, Japan.
| | - Eiji Nomura
- Departments of General and Gastroenterological Surgery, Tokai University Hachioji Hospital, 1838 Ishikawa-machi, Hachioji, Tokyo, 192-0032, Japan
| | - Rin Abe
- Departments of General and Gastroenterological Surgery, Tokai University Hachioji Hospital, 1838 Ishikawa-machi, Hachioji, Tokyo, 192-0032, Japan
| | - Yasuhiko Ueda
- Departments of General and Gastroenterological Surgery, Tokai University Hachioji Hospital, 1838 Ishikawa-machi, Hachioji, Tokyo, 192-0032, Japan
| | - Takashi Machida
- Departments of General and Gastroenterological Surgery, Tokai University Hachioji Hospital, 1838 Ishikawa-machi, Hachioji, Tokyo, 192-0032, Japan
| | - Chikara Fujita
- Departments of Radiation Technology, Tokai University Hachioji Hospital, 1838 Ishikawa-machi, Hachioji, Tokyo, 192-0032, Japan
| | - Shohei Uchiyama
- Departments of Radiation Technology, Tokai University Hachioji Hospital, 1838 Ishikawa-machi, Hachioji, Tokyo, 192-0032, Japan
| | - Kazuyuki Endo
- Departments of Radiation Technology, Tokai University Hachioji Hospital, 1838 Ishikawa-machi, Hachioji, Tokyo, 192-0032, Japan
| | - Katsuki Murakami
- Departments of Radiation Technology, Tokai University Hachioji Hospital, 1838 Ishikawa-machi, Hachioji, Tokyo, 192-0032, Japan
| | - Masaya Mukai
- Departments of General and Gastroenterological Surgery, Tokai University Hachioji Hospital, 1838 Ishikawa-machi, Hachioji, Tokyo, 192-0032, Japan
| | - Hiroyasu Makuuchi
- Departments of General and Gastroenterological Surgery, Tokai University Hachioji Hospital, 1838 Ishikawa-machi, Hachioji, Tokyo, 192-0032, Japan
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Kamimura M, Taguchi A, Komatsu M, Koiwai H, Ashizawa R, Ichinose A, Takahara K, Uchiyama S, Kato H. Long waiting time before tooth extraction may increase delayed wound healing in elderly Japanese. Osteoporos Int 2019; 30:621-628. [PMID: 30460382 DOI: 10.1007/s00198-018-4775-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Accepted: 11/11/2018] [Indexed: 12/13/2022]
Abstract
UNLABELLED In osteoporosis patients receiving antiresorptive medications, stopping the drug and delaying tooth extraction has been suggested to reduce the risk of osteonecrosis of the jaw (ONJ). However, postponing tooth extraction for ≥ 2 months was associated with an increased risk of delayed wound healing beyond 8 weeks after extraction, a risk factor for developing ONJ. INTRODUCTION A long waiting time before tooth extraction could result from concern about a potential increased risk of osteonecrosis of the jaw (ONJ) in osteoporosis patients. We clarified whether a long waiting time before tooth extraction during the past year may be associated with an increased risk of delayed wound healing beyond 8 weeks after tooth extraction, which may be a risk factor of ONJ. METHODS Of 5639 patients aged ≥ 60 years who visited our 20 clinics or hospitals and answered a structured questionnaire, 426 patients (151 men, 275 women) aged 60-96 years comprised the final participants in this study. Self-reported kyphosis was used as a surrogate marker of vertebral fractures. Stepwise logistic regression analysis, adjusted for covariates, was used to calculate the odds ratio (OR) and the 95% confidence interval (CI) for the presence of delayed wound healing longer than 8 weeks after tooth extraction during the past year based on the duration before extraction. RESULTS Subjects who had waited > 2 months for tooth extraction had a significantly higher risk of delayed wound healing compared with those whose tooth was extracted within 1 month (OR = 7.23; 95% CI = 2.19-23.85, p = 0.001) regardless if antiresorptive medications for osteoporosis were used. The presence of self-reported kyphosis was significantly associated with an increased risk of delayed wound healing (OR = 5.08; 95% CI = 1.11-23.32, p = 0.036). CONCLUSIONS A long waiting time before tooth extraction may be a risk factor for delayed wound healing beyond 8 weeks after extraction in patients aged ≥ 60 years.
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Affiliation(s)
- M Kamimura
- Center for Osteoporosis and Spinal Disorders, Kamimura Orthopedic Clinic, 595-17 Kotobuki, Matsumoto, 399-0021, Japan
| | - A Taguchi
- Department of Oral and Maxillofacial Radiology, School of Dentistry, Matsumoto Dental University, 1780 Gobara, Hirooka, Shiojiri, Nagano, 399-0781, Japan.
| | - M Komatsu
- Department of Orthopedic Surgery, Shinshu University School of Medicine, 33-1-1 Asahi, Matsumoto, Nagano, 390-8621, Japan
| | - H Koiwai
- Koiwai Orthopedic Clinic, 1585-4 Mikageshinden, Komoro, 384-0091, Japan
| | - R Ashizawa
- Ashizawa Orthopedic Clinic, 12205-2 Nakaminowa, Minowacho, Kamiina-gun, Nagano, 399-4601, Japan
| | - A Ichinose
- Ichinose Clinic, 4824, Shimosuwa-machi, Suwa-gun, Nagano, 393-0087, Japan
| | - K Takahara
- Takahara Clinic, 5586-2, Minami-Minowa, Kamiina-gun, Nagano, 399-4511, Japan
| | - S Uchiyama
- Department of Orthopedic Surgery, Okaya City Hospital, 4-11-33, Honmachi, Okaya, Nagano, 394-8512, Japan
| | - H Kato
- Department of Orthopedic Surgery, Shinshu University School of Medicine, 33-1-1 Asahi, Matsumoto, Nagano, 390-8621, Japan
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Adachi T, Abe T, Mizuno T, Iida Y, Yamada T, Uchiyama S, Nishi M, Nagao T, Sakamoto K, Ito T, Fujimoto N, Kobayashi K, Okumura T, Yamada S. P3196Anorexia coexisted in frailty predicts 1-year prognosis in patients with heart failure: a multicenter prospective cohort study. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p3196] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- T Adachi
- Nagoya University Graduate School of Medicine, Department of Rehabilitation, Nagoya, Japan
| | - T Abe
- Aichi Medical University Hospital, Department of Rehabilitation, Nagakute, Japan
| | - T Mizuno
- Aichi Medical University Hospital, Department of Cardiology, Nagakute, Japan
| | - Y Iida
- Kainan Hospital, Department of Rehabilitation, Yatomi, Japan
| | - T Yamada
- Kainan Hospital, Department of Cardiology, Yatomi, Japan
| | - S Uchiyama
- New Tokyo hospital, Department of Rehabilitation, Matsudo, Japan
| | - M Nishi
- New Tokyo hospital, Department of Rehabilitation, Matsudo, Japan
| | - T Nagao
- Hoshi General Hospital, Department of Rehabilitation, Koriyama, Japan
| | - K Sakamoto
- Hoshi General Hospital, Department of Cardiology, Koriyama, Japan
| | - T Ito
- Mie University Hospital, Department of Rehabilitation, Tsu, Japan
| | - N Fujimoto
- Mie University Graduate School of Medicine, Department of Cardiology, Tsu, Japan
| | - K Kobayashi
- Nagoya University Hospital, Department of Rehabilitation, Nagoya, Japan
| | - T Okumura
- Nagoya University Hospital, Department of Cardiology, Nagoya, Japan
| | - S Yamada
- Nagoya University, Department of Health Sciences, Nagoya, Japan
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Yasaka M, Uchiyama S, Atarashi H, Okumura K, Koretsune Y, Yamashita T, Fukaya T, Inoue H. The final results for secondary stroke prevention of j-dabigatran surveillance program: Safety and effectiveness of dabigatran long-term treatment in Japanese patients with atrial fibrillation. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Uchiyama S, Hirotsugu A, Inoue H, Kitazono T, Shimizu W, Yamashita T, Ikeda T, Kamouchi M, Kaikita K, Fukuda K, Origasa H, Shimokawa H. Primary and secondary prevention of stroke and systemic embolism with rivaroxaban in patients with non-valvular atrial fibrillation (sub-analysis of the expand study). J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3148] [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: 10/18/2022]
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Uchiyama S. Atrial fibrillation - practical issues. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.143] [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: 10/18/2022]
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Ohi H, Uchiyama S, Kanda T, Mukoda M, Hayashi M, Kato H. Outcomes of grafting intrasynovial tendons of the toes to the hands in 10 patients: a preliminary report. J Hand Surg Eur Vol 2017; 42:469-472. [PMID: 28193099 DOI: 10.1177/1753193417691653] [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] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Ten patients had intrasynovial tendon grafting harvested from the toes for secondary flexor tendon reconstruction in nine fingers and one thumb in our institutes from 2009 to 2014. These patients were followed for a mean of 15 (range: 8-36) months. The ranges of total active motion of the proximal and distal interphalangeal joints of these nine fingers were 143° (range: 108-175°) and of the metacarpophalangeal and interphalangeal joints of one thumb were 110°. In conclusion, this technique is feasible and gives a good result when successful but with a high complication rate. Level of Evidence IV.
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Affiliation(s)
- H Ohi
- 1 Hand and Microsurgery Center, Seirei Hamamatsu Hospital, Hamamatsu, Japan
| | - S Uchiyama
- 2 Department of Orthopaedic Surgery, Shinshu University School of Medicine. Matsumoto, Japan
| | - T Kanda
- 1 Hand and Microsurgery Center, Seirei Hamamatsu Hospital, Hamamatsu, Japan
| | - M Mukoda
- 1 Hand and Microsurgery Center, Seirei Hamamatsu Hospital, Hamamatsu, Japan
| | - M Hayashi
- 2 Department of Orthopaedic Surgery, Shinshu University School of Medicine. Matsumoto, Japan
| | - H Kato
- 2 Department of Orthopaedic Surgery, Shinshu University School of Medicine. Matsumoto, Japan
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Kamimura M, Nakamura Y, Ikegami S, Uchiyama S, Kato H, Taguchi A. Significant improvement of bone mineral density and bone turnover markers by denosumab therapy in bisphosphonate-unresponsive patients: response to comments. Osteoporos Int 2017; 28:1757-1758. [PMID: 28127625 DOI: 10.1007/s00198-017-3923-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Accepted: 01/10/2017] [Indexed: 11/29/2022]
Affiliation(s)
- M Kamimura
- Center of Osteoporosis and Spinal Disorders, Kamimura Orthopedic Clinic, Kotobuki-Toyooka 595-17, Matsumoto, 399-0021, Japan
| | - Y Nakamura
- Department of Orthopaedic Surgery, Shinshu University School of Medicine, Asahi 3-1-1, Matsumoto, 390-8621, Japan.
- Department of Orthopedic Surgery, Showa-Inan General Hospital, Akaho 3230, Komagane, 399-4117, Japan.
| | - S Ikegami
- Department of Orthopaedic Surgery, Shinshu University School of Medicine, Asahi 3-1-1, Matsumoto, 390-8621, Japan
| | - S Uchiyama
- Department of Orthopaedic Surgery, Shinshu University School of Medicine, Asahi 3-1-1, Matsumoto, 390-8621, Japan
| | - H Kato
- Department of Orthopaedic Surgery, Shinshu University School of Medicine, Asahi 3-1-1, Matsumoto, 390-8621, Japan
| | - A Taguchi
- Department of Oral and Maxillofacial Radiology, Matsumoto Dental University, 1780 Gobara Hirooka, Shiojiri, 399-0781, Japan
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Kamimura M, Nakamura Y, Ikegami S, Uchiyama S, Kato H, Taguchi A. Significant improvement of bone mineral density and bone turnover markers by denosumab therapy in bisphosphonate-unresponsive patients. Osteoporos Int 2017; 28:559-566. [PMID: 27650642 PMCID: PMC5269470 DOI: 10.1007/s00198-016-3764-7] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [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] [Received: 07/25/2016] [Accepted: 08/31/2016] [Indexed: 11/12/2022]
Abstract
UNLABELLED Bone mineral density (BMD) sometimes cannot be improved by long-term bisphosphonate (BP) therapy in osteoporosis (OP). This study showed that lumbar as well as hip BMD significantly increased after denosumab treatment in patients not responsive to BPs. Thus, denosumab may be a strong OP treatment option for BP-unresponsive patients. INTRODUCTION BMD sometimes cannot be improved by long-term BP therapy. METHODS We administered denosumab to osteoporotic patients with a poor response to BPs who had been taking them for 2 years or longer. Ninety-eight women with BP-poor responsive OP were enrolled in this study. Mean (standard deviation [SD]) age was 71.2 (6.9) years and mean (SD) duration of BP treatment was 59.9 (34.3) months. We distinguished BP responders from non-responders based on changes in BMD values at denosumab commencement (baseline) from 2 years beforehand. RESULTS There were no significant differences in age, duration of BP use, bone turnover markers, or BMD at baseline between the groups. Prior to denosumab, BMD had increased significantly in responders and decreased significantly in non-responders. Bone turnover markers had decreased significantly at 4 months of denosumab treatment (P < 0.001) and lumbar and hip BMD were significantly increased at 1 year of therapy in both groups (P < 0.001). Simple correlation coefficients were -0.337 for lumbar and -0.339 for hip BMD changes (both P = 0.001) before and after denosumab treatment. Both at the lumbar spine and hips, decreased BMD before denosumab therapy was significantly associated with an increase in BMD at 1 year of treatment (spine, t value = -3.502, P = 0.001, R = 0.113; hip, t value = -3.526, P = 0.001, R = 0.115). CONCLUSIONS These results suggest that denosumab may be a strong OP treatment option for BP-unresponsive patients.
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Affiliation(s)
- M Kamimura
- Center of Osteoporosis and Spinal Disorders, Kamimura Orthopedic Clinic, Kotobuki 595-17, Matsumoto, 399-0021, Japan
| | - Y Nakamura
- Department of Orthopaedic Surgery, Shinshu University School of Medicine, Asahi 3-1-1, Matsumoto, 390-8621, Japan.
- Department of Orthopedic Surgery, Showa-Inan General Hospital, Akaho 3230, Komagane, 399-4117, Japan.
| | - S Ikegami
- Department of Orthopaedic Surgery, Shinshu University School of Medicine, Asahi 3-1-1, Matsumoto, 390-8621, Japan
| | - S Uchiyama
- Department of Orthopaedic Surgery, Shinshu University School of Medicine, Asahi 3-1-1, Matsumoto, 390-8621, Japan
| | - H Kato
- Department of Orthopaedic Surgery, Shinshu University School of Medicine, Asahi 3-1-1, Matsumoto, 390-8621, Japan
| | - A Taguchi
- Department of Oral and Maxillofacial Radiology, Matsumoto Dental University, 1780 Gobara Hirooka, Shiojiri, 399-0781, Japan
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13
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Yamazaki M, Ohnishi T, Hosokawa K, Yamaguchi K, Yoneyama T, Kawashima A, Okada Y, Kitagawa K, Uchiyama S. Measurement of residual platelet thrombogenicity under arterial shear conditions in cerebrovascular disease patients receiving antiplatelet therapy. J Thromb Haemost 2016; 14:1788-97. [PMID: 27328457 DOI: 10.1111/jth.13391] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Accepted: 05/22/2016] [Indexed: 11/29/2022]
Abstract
UNLABELLED Essentials A consensus methodology for assessing the effects of antiplatelet agents has not been established. Measuring platelet thrombus formation (PTF) for evaluating antiplatelet effects was assessed. PTF differentially reflected antiplatelet effects compared to other tests. PTF may be associated with the severity of carotid or intracranial arterial stenosis. Click to hear a presentation on platelet function testing in the clinic by Gresele and colleagues SUMMARY Background A consensus methodology for assessing the effects of antiplatelet agents has not been established. Objective We investigated the usefulness of directly measuring platelet thrombus formation (PTF) using a microchip-based flow chamber system for evaluating antiplatelet therapy. Patients/Methods Platelet thrombus formation in the whole blood of 94 patients with ischemic cerebrovascular disease treated with clopidogrel and/or aspirin was measured in a flow chamber system at a shear rate of 1500 s(-1) and was compared with the results of assays for agonist-induced platelet aggregability, phosphorylation of vasodilator-stimulated phosphoprotein, platelet p-selectin expression (PS), and platelet-monocyte complexes. Results In all patients tested, area under the flow pressure curve (AUC10), which represents platelet thrombogenicity, showed weak correlation with platelet aggregation induced by either adenosine diphosphate or collagen. In addition, AUC10 was lower in patients treated with dual antiplatelet therapy (median 79.4) compared with patients treated with aspirin or clopidogrel alone (217.7 and 301.0, respectively), whereas the parameters evaluated by the other assays did not reflect the combined treatment efficacy. In clopidogrel monotherapy patients, AUC10 was associated with the severity of arterial stenosis (R(2) = 0.127, β = 1.25), and AUC10 and PS were higher in patients with severe carotid or intracranial arterial stenosis than in those with mild stenosis. Conclusions Platelet thrombus formation measurement using a flow-chamber system was useful for evaluating the efficacy of treatment with aspirin and clopidogrel, both alone and in combination. The present findings indicate that high residual platelet thrombogenicity in patients treated with clopidogrel may be associated with the severity of carotid or intracranial arterial stenosis.
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Affiliation(s)
- M Yamazaki
- Department of Neurology, Tokyo Women's Medical University, Shinjuku-ku, Tokyo, Japan.
| | - T Ohnishi
- Research Institute, Fujimori Kogyo Co., Ltd, Yokohama, Kanagawa, Japan
| | - K Hosokawa
- Research Institute, Fujimori Kogyo Co., Ltd, Yokohama, Kanagawa, Japan
| | - K Yamaguchi
- Department of Neurosurgery, Tokyo Women's Medical University, Shinjuku-ku, Tokyo, Japan
| | - T Yoneyama
- Department of Neurosurgery, Tokyo Women's Medical University, Shinjuku-ku, Tokyo, Japan
| | - A Kawashima
- Department of Neurosurgery, Tokyo Women's Medical University, Shinjuku-ku, Tokyo, Japan
| | - Y Okada
- Department of Neurosurgery, Tokyo Women's Medical University, Shinjuku-ku, Tokyo, Japan
| | - K Kitagawa
- Department of Neurology, Tokyo Women's Medical University, Shinjuku-ku, Tokyo, Japan
| | - S Uchiyama
- Department of Neurology, Tokyo Women's Medical University, Shinjuku-ku, Tokyo, Japan
- Clinical Research Center for Medicine, International University of Health and Welfare, Center for Brain and Cerebral Vessels, Sanno Hospital and Sanno Medical Center, Tokyo, Minato-ku, Japan
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14
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Perera KS, Vanassche T, Bosch J, Swaminathan B, Mundl H, Giruparajah M, Barboza MA, O’Donnell MJ, Gomez-Schneider M, Hankey GJ, Yoon BW, Roxas A, Lavallee P, Sargento-Freitas J, Shamalov N, Brouns R, Gagliardi RJ, Kasner SE, Pieroni A, Vermehren P, Kitagawa K, Wang Y, Muir K, Coutinho JM, Connolly SJ, Hart RG, Czeto K, Kahn M, Mattina K, Ameriso S, Pujol-Lereis V, Hawkes M, Pertierra L, Perera N, De Smedt A, Van Dyck R, Van Hooff R, Yperzeele L, Gagliardi V, Cerqueir L, Yang X, Chen W, Amarenco P, Guidoux C, Ringleb P, Bereczki D, Vastagh I, Canavan M, Toni D, Anzini A, Colosimo C, De Michele M, Di Mascio M, Durastanti L, Falcou A, Fausti S, Mancini A, Mizumo S, Uchiyama S, Kim C, Jung S, Kim Y, Kim J, Jo J, Arauz A, Quiroz-Compean A, Colin J, Nederkoorn P, Marianito V, Cunha L, Santo G, Silva F, Coelho J, Kustova M, Meshkova K, Williams G, Siegler J, Zhang C, Gallatti N, Kruszewski M. Global Survey of the Frequency of Atrial Fibrillation–Associated Stroke. Stroke 2016; 47:2197-202. [DOI: 10.1161/strokeaha.116.013378] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Accepted: 06/27/2016] [Indexed: 12/22/2022]
Abstract
Background and Purpose—
Atrial fibrillation (AF) is increasingly recognized as the single most important cause of disabling ischemic stroke in the elderly. We undertook an international survey to characterize the frequency of AF-associated stroke, methods of AF detection, and patient features.
Methods—
Consecutive patients hospitalized for ischemic stroke in 2013 to 2014 were surveyed from 19 stroke research centers in 19 different countries. Data were analyzed by global regions and World Bank income levels.
Results—
Of 2144 patients with ischemic stroke, 590 (28%; 95% confidence interval, 25.6–29.5) had AF-associated stroke, with highest frequencies in North America (35%) and Europe (33%) and lowest in Latin America (17%). Most had a history of AF before stroke (15%) or newly detected AF on electrocardiography (10%); only 2% of patients with ischemic stroke had unsuspected AF detected by poststroke cardiac rhythm monitoring. The mean age and 30-day mortality rate of patients with AF-associated stroke (75 years; SD, 11.5 years; 10%; 95% confidence interval, 7.6–12.6, respectively) were substantially higher than those of patients without AF (64 years; SD, 15.58 years; 4%; 95% confidence interval, 3.3–5.4;
P
<0.001 for both comparisons). There was a strong positive correlation between the mean age and the frequency of AF (
r
=0.76;
P
=0.0002).
Conclusions—
This cross-sectional global sample of patients with recent ischemic stroke shows a substantial frequency of AF-associated stroke throughout the world in proportion to the mean age of the stroke population. Most AF is identified by history or electrocardiography; the yield of conventional short-duration cardiac rhythm monitoring is relatively low. Patients with AF-associated stroke were typically elderly (>75 years old) and more often women.
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Affiliation(s)
- Kanjana S. Perera
- From the Population Health Research Institute, McMaster University, Hamilton Health Sciences, Ontario, Canada (K.S.P., J.B., B.S., M.G., S.J.C., R.G.H.); Department of Cardiovascular Sciences, University of Leuven, Belgium (T.V.); Bayer-Pharma AG, Wuppertal, Germany (H.M.); Instituto Nacional de Neurologia y Neurocirugia, Mexico D.F., Mexico (M.A.B.); University of Galway, Ireland (M.J.O.); Institute for Neurological Research, Fundacion para la Lucha contra las Enfermedades Neurologicas de la
| | - Thomas Vanassche
- From the Population Health Research Institute, McMaster University, Hamilton Health Sciences, Ontario, Canada (K.S.P., J.B., B.S., M.G., S.J.C., R.G.H.); Department of Cardiovascular Sciences, University of Leuven, Belgium (T.V.); Bayer-Pharma AG, Wuppertal, Germany (H.M.); Instituto Nacional de Neurologia y Neurocirugia, Mexico D.F., Mexico (M.A.B.); University of Galway, Ireland (M.J.O.); Institute for Neurological Research, Fundacion para la Lucha contra las Enfermedades Neurologicas de la
| | - Jackie Bosch
- From the Population Health Research Institute, McMaster University, Hamilton Health Sciences, Ontario, Canada (K.S.P., J.B., B.S., M.G., S.J.C., R.G.H.); Department of Cardiovascular Sciences, University of Leuven, Belgium (T.V.); Bayer-Pharma AG, Wuppertal, Germany (H.M.); Instituto Nacional de Neurologia y Neurocirugia, Mexico D.F., Mexico (M.A.B.); University of Galway, Ireland (M.J.O.); Institute for Neurological Research, Fundacion para la Lucha contra las Enfermedades Neurologicas de la
| | - Balakumar Swaminathan
- From the Population Health Research Institute, McMaster University, Hamilton Health Sciences, Ontario, Canada (K.S.P., J.B., B.S., M.G., S.J.C., R.G.H.); Department of Cardiovascular Sciences, University of Leuven, Belgium (T.V.); Bayer-Pharma AG, Wuppertal, Germany (H.M.); Instituto Nacional de Neurologia y Neurocirugia, Mexico D.F., Mexico (M.A.B.); University of Galway, Ireland (M.J.O.); Institute for Neurological Research, Fundacion para la Lucha contra las Enfermedades Neurologicas de la
| | - Hardi Mundl
- From the Population Health Research Institute, McMaster University, Hamilton Health Sciences, Ontario, Canada (K.S.P., J.B., B.S., M.G., S.J.C., R.G.H.); Department of Cardiovascular Sciences, University of Leuven, Belgium (T.V.); Bayer-Pharma AG, Wuppertal, Germany (H.M.); Instituto Nacional de Neurologia y Neurocirugia, Mexico D.F., Mexico (M.A.B.); University of Galway, Ireland (M.J.O.); Institute for Neurological Research, Fundacion para la Lucha contra las Enfermedades Neurologicas de la
| | - Mohana Giruparajah
- From the Population Health Research Institute, McMaster University, Hamilton Health Sciences, Ontario, Canada (K.S.P., J.B., B.S., M.G., S.J.C., R.G.H.); Department of Cardiovascular Sciences, University of Leuven, Belgium (T.V.); Bayer-Pharma AG, Wuppertal, Germany (H.M.); Instituto Nacional de Neurologia y Neurocirugia, Mexico D.F., Mexico (M.A.B.); University of Galway, Ireland (M.J.O.); Institute for Neurological Research, Fundacion para la Lucha contra las Enfermedades Neurologicas de la
| | - Miguel A. Barboza
- From the Population Health Research Institute, McMaster University, Hamilton Health Sciences, Ontario, Canada (K.S.P., J.B., B.S., M.G., S.J.C., R.G.H.); Department of Cardiovascular Sciences, University of Leuven, Belgium (T.V.); Bayer-Pharma AG, Wuppertal, Germany (H.M.); Instituto Nacional de Neurologia y Neurocirugia, Mexico D.F., Mexico (M.A.B.); University of Galway, Ireland (M.J.O.); Institute for Neurological Research, Fundacion para la Lucha contra las Enfermedades Neurologicas de la
| | - Martin J. O’Donnell
- From the Population Health Research Institute, McMaster University, Hamilton Health Sciences, Ontario, Canada (K.S.P., J.B., B.S., M.G., S.J.C., R.G.H.); Department of Cardiovascular Sciences, University of Leuven, Belgium (T.V.); Bayer-Pharma AG, Wuppertal, Germany (H.M.); Instituto Nacional de Neurologia y Neurocirugia, Mexico D.F., Mexico (M.A.B.); University of Galway, Ireland (M.J.O.); Institute for Neurological Research, Fundacion para la Lucha contra las Enfermedades Neurologicas de la
| | - Maia Gomez-Schneider
- From the Population Health Research Institute, McMaster University, Hamilton Health Sciences, Ontario, Canada (K.S.P., J.B., B.S., M.G., S.J.C., R.G.H.); Department of Cardiovascular Sciences, University of Leuven, Belgium (T.V.); Bayer-Pharma AG, Wuppertal, Germany (H.M.); Instituto Nacional de Neurologia y Neurocirugia, Mexico D.F., Mexico (M.A.B.); University of Galway, Ireland (M.J.O.); Institute for Neurological Research, Fundacion para la Lucha contra las Enfermedades Neurologicas de la
| | - Graeme J. Hankey
- From the Population Health Research Institute, McMaster University, Hamilton Health Sciences, Ontario, Canada (K.S.P., J.B., B.S., M.G., S.J.C., R.G.H.); Department of Cardiovascular Sciences, University of Leuven, Belgium (T.V.); Bayer-Pharma AG, Wuppertal, Germany (H.M.); Instituto Nacional de Neurologia y Neurocirugia, Mexico D.F., Mexico (M.A.B.); University of Galway, Ireland (M.J.O.); Institute for Neurological Research, Fundacion para la Lucha contra las Enfermedades Neurologicas de la
| | - Byung-Woo Yoon
- From the Population Health Research Institute, McMaster University, Hamilton Health Sciences, Ontario, Canada (K.S.P., J.B., B.S., M.G., S.J.C., R.G.H.); Department of Cardiovascular Sciences, University of Leuven, Belgium (T.V.); Bayer-Pharma AG, Wuppertal, Germany (H.M.); Instituto Nacional de Neurologia y Neurocirugia, Mexico D.F., Mexico (M.A.B.); University of Galway, Ireland (M.J.O.); Institute for Neurological Research, Fundacion para la Lucha contra las Enfermedades Neurologicas de la
| | - Artemio Roxas
- From the Population Health Research Institute, McMaster University, Hamilton Health Sciences, Ontario, Canada (K.S.P., J.B., B.S., M.G., S.J.C., R.G.H.); Department of Cardiovascular Sciences, University of Leuven, Belgium (T.V.); Bayer-Pharma AG, Wuppertal, Germany (H.M.); Instituto Nacional de Neurologia y Neurocirugia, Mexico D.F., Mexico (M.A.B.); University of Galway, Ireland (M.J.O.); Institute for Neurological Research, Fundacion para la Lucha contra las Enfermedades Neurologicas de la
| | - Philippa Lavallee
- From the Population Health Research Institute, McMaster University, Hamilton Health Sciences, Ontario, Canada (K.S.P., J.B., B.S., M.G., S.J.C., R.G.H.); Department of Cardiovascular Sciences, University of Leuven, Belgium (T.V.); Bayer-Pharma AG, Wuppertal, Germany (H.M.); Instituto Nacional de Neurologia y Neurocirugia, Mexico D.F., Mexico (M.A.B.); University of Galway, Ireland (M.J.O.); Institute for Neurological Research, Fundacion para la Lucha contra las Enfermedades Neurologicas de la
| | - Joao Sargento-Freitas
- From the Population Health Research Institute, McMaster University, Hamilton Health Sciences, Ontario, Canada (K.S.P., J.B., B.S., M.G., S.J.C., R.G.H.); Department of Cardiovascular Sciences, University of Leuven, Belgium (T.V.); Bayer-Pharma AG, Wuppertal, Germany (H.M.); Instituto Nacional de Neurologia y Neurocirugia, Mexico D.F., Mexico (M.A.B.); University of Galway, Ireland (M.J.O.); Institute for Neurological Research, Fundacion para la Lucha contra las Enfermedades Neurologicas de la
| | - Nikolay Shamalov
- From the Population Health Research Institute, McMaster University, Hamilton Health Sciences, Ontario, Canada (K.S.P., J.B., B.S., M.G., S.J.C., R.G.H.); Department of Cardiovascular Sciences, University of Leuven, Belgium (T.V.); Bayer-Pharma AG, Wuppertal, Germany (H.M.); Instituto Nacional de Neurologia y Neurocirugia, Mexico D.F., Mexico (M.A.B.); University of Galway, Ireland (M.J.O.); Institute for Neurological Research, Fundacion para la Lucha contra las Enfermedades Neurologicas de la
| | - Raf Brouns
- From the Population Health Research Institute, McMaster University, Hamilton Health Sciences, Ontario, Canada (K.S.P., J.B., B.S., M.G., S.J.C., R.G.H.); Department of Cardiovascular Sciences, University of Leuven, Belgium (T.V.); Bayer-Pharma AG, Wuppertal, Germany (H.M.); Instituto Nacional de Neurologia y Neurocirugia, Mexico D.F., Mexico (M.A.B.); University of Galway, Ireland (M.J.O.); Institute for Neurological Research, Fundacion para la Lucha contra las Enfermedades Neurologicas de la
| | - Rubens J. Gagliardi
- From the Population Health Research Institute, McMaster University, Hamilton Health Sciences, Ontario, Canada (K.S.P., J.B., B.S., M.G., S.J.C., R.G.H.); Department of Cardiovascular Sciences, University of Leuven, Belgium (T.V.); Bayer-Pharma AG, Wuppertal, Germany (H.M.); Instituto Nacional de Neurologia y Neurocirugia, Mexico D.F., Mexico (M.A.B.); University of Galway, Ireland (M.J.O.); Institute for Neurological Research, Fundacion para la Lucha contra las Enfermedades Neurologicas de la
| | - Scott E. Kasner
- From the Population Health Research Institute, McMaster University, Hamilton Health Sciences, Ontario, Canada (K.S.P., J.B., B.S., M.G., S.J.C., R.G.H.); Department of Cardiovascular Sciences, University of Leuven, Belgium (T.V.); Bayer-Pharma AG, Wuppertal, Germany (H.M.); Instituto Nacional de Neurologia y Neurocirugia, Mexico D.F., Mexico (M.A.B.); University of Galway, Ireland (M.J.O.); Institute for Neurological Research, Fundacion para la Lucha contra las Enfermedades Neurologicas de la
| | - Alessio Pieroni
- From the Population Health Research Institute, McMaster University, Hamilton Health Sciences, Ontario, Canada (K.S.P., J.B., B.S., M.G., S.J.C., R.G.H.); Department of Cardiovascular Sciences, University of Leuven, Belgium (T.V.); Bayer-Pharma AG, Wuppertal, Germany (H.M.); Instituto Nacional de Neurologia y Neurocirugia, Mexico D.F., Mexico (M.A.B.); University of Galway, Ireland (M.J.O.); Institute for Neurological Research, Fundacion para la Lucha contra las Enfermedades Neurologicas de la
| | - Philipp Vermehren
- From the Population Health Research Institute, McMaster University, Hamilton Health Sciences, Ontario, Canada (K.S.P., J.B., B.S., M.G., S.J.C., R.G.H.); Department of Cardiovascular Sciences, University of Leuven, Belgium (T.V.); Bayer-Pharma AG, Wuppertal, Germany (H.M.); Instituto Nacional de Neurologia y Neurocirugia, Mexico D.F., Mexico (M.A.B.); University of Galway, Ireland (M.J.O.); Institute for Neurological Research, Fundacion para la Lucha contra las Enfermedades Neurologicas de la
| | - Kazuo Kitagawa
- From the Population Health Research Institute, McMaster University, Hamilton Health Sciences, Ontario, Canada (K.S.P., J.B., B.S., M.G., S.J.C., R.G.H.); Department of Cardiovascular Sciences, University of Leuven, Belgium (T.V.); Bayer-Pharma AG, Wuppertal, Germany (H.M.); Instituto Nacional de Neurologia y Neurocirugia, Mexico D.F., Mexico (M.A.B.); University of Galway, Ireland (M.J.O.); Institute for Neurological Research, Fundacion para la Lucha contra las Enfermedades Neurologicas de la
| | - Yongjun Wang
- From the Population Health Research Institute, McMaster University, Hamilton Health Sciences, Ontario, Canada (K.S.P., J.B., B.S., M.G., S.J.C., R.G.H.); Department of Cardiovascular Sciences, University of Leuven, Belgium (T.V.); Bayer-Pharma AG, Wuppertal, Germany (H.M.); Instituto Nacional de Neurologia y Neurocirugia, Mexico D.F., Mexico (M.A.B.); University of Galway, Ireland (M.J.O.); Institute for Neurological Research, Fundacion para la Lucha contra las Enfermedades Neurologicas de la
| | - Keith Muir
- From the Population Health Research Institute, McMaster University, Hamilton Health Sciences, Ontario, Canada (K.S.P., J.B., B.S., M.G., S.J.C., R.G.H.); Department of Cardiovascular Sciences, University of Leuven, Belgium (T.V.); Bayer-Pharma AG, Wuppertal, Germany (H.M.); Instituto Nacional de Neurologia y Neurocirugia, Mexico D.F., Mexico (M.A.B.); University of Galway, Ireland (M.J.O.); Institute for Neurological Research, Fundacion para la Lucha contra las Enfermedades Neurologicas de la
| | - Jonathan M. Coutinho
- From the Population Health Research Institute, McMaster University, Hamilton Health Sciences, Ontario, Canada (K.S.P., J.B., B.S., M.G., S.J.C., R.G.H.); Department of Cardiovascular Sciences, University of Leuven, Belgium (T.V.); Bayer-Pharma AG, Wuppertal, Germany (H.M.); Instituto Nacional de Neurologia y Neurocirugia, Mexico D.F., Mexico (M.A.B.); University of Galway, Ireland (M.J.O.); Institute for Neurological Research, Fundacion para la Lucha contra las Enfermedades Neurologicas de la
| | - Stuart J. Connolly
- From the Population Health Research Institute, McMaster University, Hamilton Health Sciences, Ontario, Canada (K.S.P., J.B., B.S., M.G., S.J.C., R.G.H.); Department of Cardiovascular Sciences, University of Leuven, Belgium (T.V.); Bayer-Pharma AG, Wuppertal, Germany (H.M.); Instituto Nacional de Neurologia y Neurocirugia, Mexico D.F., Mexico (M.A.B.); University of Galway, Ireland (M.J.O.); Institute for Neurological Research, Fundacion para la Lucha contra las Enfermedades Neurologicas de la
| | - Robert G. Hart
- From the Population Health Research Institute, McMaster University, Hamilton Health Sciences, Ontario, Canada (K.S.P., J.B., B.S., M.G., S.J.C., R.G.H.); Department of Cardiovascular Sciences, University of Leuven, Belgium (T.V.); Bayer-Pharma AG, Wuppertal, Germany (H.M.); Instituto Nacional de Neurologia y Neurocirugia, Mexico D.F., Mexico (M.A.B.); University of Galway, Ireland (M.J.O.); Institute for Neurological Research, Fundacion para la Lucha contra las Enfermedades Neurologicas de la
| | - K. Czeto
- Population Health Research Institute (Coordinating Center), Hamilton, Ontario, Canada
| | - M. Kahn
- Population Health Research Institute (Coordinating Center), Hamilton, Ontario, Canada
| | - K.R. Mattina
- Population Health Research Institute (Coordinating Center), Hamilton, Ontario, Canada
| | - S.F. Ameriso
- Institute for Neurological Research, Fundación para la Lucha contra las Enfermedades Neurológicas de la Infancia (FLENI), Buenos Aires, Argentina
| | - V. Pujol-Lereis
- Institute for Neurological Research, Fundación para la Lucha contra las Enfermedades Neurológicas de la Infancia (FLENI), Buenos Aires, Argentina
| | - M. Hawkes
- Institute for Neurological Research, Fundación para la Lucha contra las Enfermedades Neurológicas de la Infancia (FLENI), Buenos Aires, Argentina
| | - L. Pertierra
- Institute for Neurological Research, Fundación para la Lucha contra las Enfermedades Neurológicas de la Infancia (FLENI), Buenos Aires, Argentina
| | - N. Perera
- School of Medicine & Pharmacology, University of Western Australia and Sir Charles Gairdner Hospital, Perth, Australia
| | - A. De Smedt
- Universitair Ziekenhuis Brussel, Brussels, Belgium
| | - R. Van Dyck
- Universitair Ziekenhuis Brussel, Brussels, Belgium
| | | | - L. Yperzeele
- Universitair Ziekenhuis Brussel, Brussels, Belgium
| | | | - L.G. Cerqueir
- Santa Casa de São Paulo, Medical School, Sao Paulo, Brazil
| | - X. Yang
- Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - W. Chen
- Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | | | | | - P.A. Ringleb
- University Hospital Heidelberg, Heidelberg, Germany
| | | | - I. Vastagh
- Semmelweis University, Budapest, Hungary
| | - M. Canavan
- Galway University Hospitals, Galway, Ireland
| | - D. Toni
- Department of Neurology and Psychiatry, ‘Sapienza’ University, Rome, Italy
| | - A. Anzini
- Department of Neurology and Psychiatry, ‘Sapienza’ University, Rome, Italy
| | - C. Colosimo
- Department of Neurology and Psychiatry, ‘Sapienza’ University, Rome, Italy
| | - M. De Michele
- Department of Neurology and Psychiatry, ‘Sapienza’ University, Rome, Italy
| | - M.T. Di Mascio
- Department of Neurology and Psychiatry, ‘Sapienza’ University, Rome, Italy
| | - L. Durastanti
- Department of Neurology and Psychiatry, ‘Sapienza’ University, Rome, Italy
| | - A. Falcou
- Department of Neurology and Psychiatry, ‘Sapienza’ University, Rome, Italy
| | - S. Fausti
- Department of Neurology and Psychiatry, ‘Sapienza’ University, Rome, Italy
| | - A. Mancini
- Department of Neurology and Psychiatry, ‘Sapienza’ University, Rome, Italy
| | - S. Mizumo
- Tokyo Women’s Medical University, Tokyo, Japan
| | - S. Uchiyama
- Tokyo Women’s Medical University, Tokyo, Japan
| | - C.K. Kim
- Seoul National University Hospital, Seoul, Korea
| | - S. Jung
- Seoul National University Hospital, Seoul, Korea
| | - Y. Kim
- Seoul National University Hospital, Seoul, Korea
| | - J.A. Kim
- Seoul National University Hospital, Seoul, Korea
| | - J.Y. Jo
- Seoul National University Hospital, Seoul, Korea
| | - A. Arauz
- Instituto Nacional de Neurologia y Neurocirugia, Mexico D.F., Mexico
| | - A. Quiroz-Compean
- Instituto Nacional de Neurologia y Neurocirugia, Mexico D.F., Mexico
| | - J. Colin
- Instituto Nacional de Neurologia y Neurocirugia, Mexico D.F., Mexico
| | | | | | - L. Cunha
- Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - G. Santo
- Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - F. Silva
- Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - J. Coelho
- Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - M. Kustova
- Pirogov Russian National Research Medical University, Moscow, Russia
| | - K. Meshkova
- Pirogov Russian National Research Medical University, Moscow, Russia
| | - G. Williams
- Institute of Neuroscience and Physiology, University of Glasgow, Queen Elizabeth Hospital, Glasgow, United Kingdom
| | - J. Siegler
- Hospital of the University of Pennslyvania, Philadelphia
| | - C. Zhang
- Hospital of the University of Pennslyvania, Philadelphia
| | - N. Gallatti
- Hospital of the University of Pennslyvania, Philadelphia
| | - M. Kruszewski
- Hospital of the University of Pennslyvania, Philadelphia
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15
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Nagai F, Uchiyama S, Nakagawa H. Posterior Interosseous Nerve Palsy caused by Osteoarthritic Synovitis of the Proximal Radioulnar Joint. ACTA ACUST UNITED AC 2016; 31:697-8. [PMID: 16962217 DOI: 10.1016/j.jhsb.2006.07.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2005] [Revised: 07/02/2006] [Accepted: 07/17/2006] [Indexed: 11/23/2022]
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16
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Hashimoto N, Uchiyama S, Kitano M, Nakazawa T, Iwasaki T, Hashimoto T. THU0348 Assessment of Submandibular Gland Ultrasonography in Early-Stage Sjögren's Syndrome. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.1469] [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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17
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Yamazaki H, Uchiyama S, Komatsu M, Hashimoto S, Kobayashi Y, Sakurai T, Kato H. Arthroscopic assistance does not improve the functional or radiographic outcome of unstable intra-articular distal radial fractures treated with a volar locking plate. Bone Joint J 2015; 97-B:957-62. [DOI: 10.1302/0301-620x.97b7.35354] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [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: 11/05/2022]
Abstract
There is no consensus on the benefit of arthroscopically assisted reduction of the articular surface combined with fixation using a volar locking plate for the treatment of intra-articular distal radial fractures. In this study we compared the functional and radiographic outcomes of fluoroscopically and arthroscopically guided reduction of these fractures. Between February 2009 and May 2013, 74 patients with unilateral unstable intra-articular distal radial fractures were randomised equally into the two groups for treatment. The mean age of these 74 patients was 64 years (24 to 92). We compared functional outcomes including active range of movement of the wrist, grip strength and Disabilities of the Arm, Shoulder, and Hand scores at six and 48 weeks; and radiographic outcomes that included gap, step, radial inclination, volar angulation and ulnar variance. There were no significant differences between the techniques with regard to functional outcomes or radiographic parameters. The mean gap and step in the fluoroscopic and arthroscopic groups were comparable at 0.9 mm (standard deviation (sd) 0.7) and 0.7 mm (sd 0.7) and 0.6 mm (sd 0.6) and 0.4 mm (sd 0.5), respectively; p = 0.18 and p = 0.35). Arthroscopic reduction conferred no advantage over conventional fluoroscopic guidance in achieving anatomical reduction of intra-articular distal radial fractures when using a volar locking plate. Cite this article: Bone Joint J 2015; 97-B:957–62.
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Affiliation(s)
- H. Yamazaki
- Aizawa Hospital, 1-5-2
Honjo, Matsumoto, 390-8510, Japan
| | - S. Uchiyama
- Shinshu University School of Medicine, Matsumoto, Japan
| | - M. Komatsu
- Aizawa Hospital, 1-5-2
Honjo, Matsumoto, 390-8510, Japan
| | - S. Hashimoto
- Aizawa Hospital, 1-5-2
Honjo, Matsumoto, 390-8510, Japan
| | - Y. Kobayashi
- Aizawa Hospital, 1-5-2
Honjo, Matsumoto, 390-8510, Japan
| | - T. Sakurai
- Aizawa Hospital, 1-5-2
Honjo, Matsumoto, 390-8510, Japan
| | - H. Kato
- Shinshu University School of Medicine, Matsumoto, Japan
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18
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Hashimoto N, Uchiyama S, Kitano M, Sano H, Iwasaki T, Hashimoto T. FRI0414 Assessment of Salivary Gland Functions and Submandibular Gland Ultrasonography Findings During 10-Years Follow-Up in Patients with Sjögren's Syndrome. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.1700] [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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19
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Uchiyama S. [Sleep disorder]. Seishin Shinkeigaku Zasshi 2014; 116:1028-1034. [PMID: 26027064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
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20
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Hlaing Z, Wajima T, Uchiyama S, Nakagome H. Reduction of Bromine Compounds in the Pyrolysis Oil of Computer Casing Plastics Using Shell, Ca(OH)2 and NaOH. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.apcbee.2014.10.037] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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21
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Uchiyama S, Itsubo T, Nakamura K, Fujinaga Y, Sato N, Imaeda T, Kadoya M, Kato H. Effect of early administration of alendronate after surgery for distal radial fragility fracture on radiological fracture healing time. Bone Joint J 2013; 95-B:1544-50. [PMID: 24151277 DOI: 10.1302/0301-620x.95b11.31652] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [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: 11/05/2022]
Abstract
This multicentre prospective clinical trial aimed to determine whether early administration of alendronate (ALN) delays fracture healing after surgical treatment of fractures of the distal radius. The study population comprised 80 patients (four men and 76 women) with a mean age of 70 years (52 to 86) with acute fragility fractures of the distal radius requiring open reduction and internal fixation with a volar locking plate and screws. Two groups of 40 patients each were randomly allocated either to receive once weekly oral ALN administration (35 mg) within a few days after surgery and continued for six months, or oral ALN administration delayed until four months after surgery. Postero-anterior and lateral radiographs of the affected wrist were taken monthly for six months after surgery. No differences between groups was observed with regard to gender (p = 1.0), age (p = 0.916), fracture classification (p = 0.274) or bone mineral density measured at the spine (p = 0.714). The radiographs were assessed by three independent assessors. There were no significant differences in the mean time to complete cortical bridging observed between the ALN group (3.5 months (SE 0.16)) and the no-ALN group (3.1 months (SE 0.15)) (p = 0.068). All the fractures healed in the both groups by the last follow-up. Improvement of the Quick-Disabilities of the Arm, Shoulder and Hand (QuickDASH) score, grip strength, wrist range of movement, and tenderness over the fracture site did not differ between the groups over the six-month period. Based on our results, early administration of ALN after surgery for distal radius fracture did not appear to delay fracture healing times either radiologically or clinically.
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Affiliation(s)
- S Uchiyama
- Shinshu University School of Medicine, Department of Orthopaedic Surgery, Shinshu Society for Surgery of the Upper Extremities, Asahi 3-1-1, Matsumoto 390-8621, Japan
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22
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Ono Y, Abe K, Suzuki K, Iimura H, Sakai S, Uchiyama S, Okada Y. Usefulness of 4D-CTA in the detection of cerebral dural sinus occlusion or stenosis with collateral pathways. Neuroradiol J 2013; 26:428-38. [PMID: 24007731 DOI: 10.1177/197140091302600408] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2013] [Accepted: 07/05/2013] [Indexed: 11/15/2022] Open
Abstract
In time-resolved CT angiography (4D-CTA), it is of substantial merit to detect the veins and sinuses of the whole brain with the simultaneous demonstration of the natural drainage flow in order to find occlusion or stenosis of the dural sinuses with collateral pathways. As preoperative information for patients with brain tumors, it is important to detect feeding arteries, incidentally found aneurysms or other vascular lesions, and to detect patency of the dural sinuses and the important cortical veins, whether they are compressed by tumors or not. On the other hand, cerebral venous thrombosis (CVT) may occur in patients due to various causes, which has not been unusual in recent years. For patients with acute symptomatic or chronic non-symptomatic CVT, identification of dural sinus occlusion (DSO) or dural sinus stenosis (DSS) and compensatory collateral pathways is necessary for suitable thrombolytic therapy or careful investigation to avoid further CVT. This study reviews our experiences in 116 cases of 4D-CTA for 90 patients with brain tumors and 26 other patients including 11 with arteriovenous malformation, and four with acute CVT and other conditions. 4D-CTA presented DSO/DSS with compensatory venous collateral pathways, which was helpful to detect the severity of the venous abnormality, and see whether it was compressed by brain tumors, or due to other causes in patients with symptomatic or non-symptomatic CVT. 4D-CTA is a useful non-invasive diagnostic tool to detect cerebral venous abnormalities as an alternative to DSA.
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Affiliation(s)
- Y Ono
- Department of the Diagnostic Imaging and Nuclear Medicine, Tokyo Women's Medical University; Tokyo, Shinjuku-ku, Japan - ,
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23
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Hashimoto N, Uchiyama S, Kitano M, Iwasaki T, Sano H, Hashimoto T. THU0190 Ultrasonagraphic assessment of submandibular glands in anti-centromere antibody positive and negative primary sjogren’s syndrome patients. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.2155] [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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Hara Y, Nishida O, Nakamura T, Uchiyama S, Shibata J, Yamashita C, Yumoto M, Shimomura Y, Kuriyama N, Yasuoka N, Ito M, Kawata K, Hayakawa S, Yamada S, Miyasho T, Moriyama K. Extracorporeal membrane oxygenation: the MOTOR of cytokine production? Crit Care 2013. [PMCID: PMC3642403 DOI: 10.1186/cc12065] [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: 11/17/2022] Open
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25
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Equilibrina I, Matsunaga S, Morimoto A, Hashimoto T, Uchiyama S, Fukui K. ASURA (PHB2) interacts with Scc1 through chromatin. Cytogenet Genome Res 2013; 139:225-33. [PMID: 23548868 DOI: 10.1159/000350004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/18/2012] [Indexed: 11/19/2022] Open
Abstract
Sister chromatid cohesion mediated by the cohesin complex is essential for faithful chromosome segregation. Previously we reported that PHB2 (prohibitin2/ASURA), a multifunctional protein, has a role in sister chromatid cohesion. Nevertheless, how ASURA is involved in sister chromatid cohesion still remains unclear. The present co-immunoprecipitation analysis reveals that ASURA interacts with cohesin subunit Scc1 in vivo. We show that ASURA associates with chromatin in a similar manner as Scc1 throughout the cell cycle. Furthermore, our observation using the Fucci (fluorescent ubiquitination-based cell cycle indicator) system indicates that ASURA is important for cohesin maintenance at early mitosis. We have also identified that the conserved PHB domain is responsible for chromatin targeting of ASURA. Our results suggest that the regulation of sister chromatid cohesion is mediated by ASURA binding to chromatin, where ASURA might be involved in cohesin protection through ASURA-Scc1 interactions.
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Affiliation(s)
- I Equilibrina
- Department of Biotechnology, Graduate School of Engineering, Osaka University, Suita, Japan
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26
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Shimizu Y, Ohashi T, Maruyama K, Nakashima I, Yokoyama K, Fujihara K, Uchiyama S. Neuromyelitis Optica Relapse Associated with Pregnancy: Similarities to Multiple Sclerosis (P06.184). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p06.184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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27
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Kabasawa C, Shimizu Y, Suzuki S, Masuda M, Nagane Y, Utsugisawa K, Suzuki Y, Utsumi H, Fujihara K, Suzuki N, Uchiyama S. Taste disorders in myasthenia gravis: a multicenter cooperative study. Eur J Neurol 2012; 20:205-7. [DOI: 10.1111/j.1468-1331.2012.03713.x] [Citation(s) in RCA: 13] [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: 11/30/2022]
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28
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Iijima M, Osawa M, Uchiyama S. 2.111 DIFFERENCES IN OLFACTORY FUNCTION BETWEEN PARKINSON'S DISEASE AND VASCULAR PARKINSONISM. Parkinsonism Relat Disord 2012. [DOI: 10.1016/s1353-8020(11)70484-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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29
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Higuchi A, Uchiyama S, Demura M, Asakura T, Cho CS, Akaike T, Takarada H, Hara M. Enhanced CEA production associated with aspirin in a culture of CW-2 cells on some polymeric films. Cytotechnology 2011; 31:233-42. [PMID: 19003147 DOI: 10.1023/a:1008030730814] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Human colorectal adenocarcinoma tumor (CW2) cells were cultivated in RPMI 1640 media containing 0-7.5 mM aspirin and 10% fetal bovine serum for the production of carcinoembryonic antigen (CEA). By adding aspirin to the media, the production of CEA per cell increased by up to one hundred fold compared to cultivation in normal media containing no aspirin, even though the total cell concentration decreased with the increase in aspirin in the media. The production of CEA was also investigated for CW2 cells cultured on silk fibroin, poly(gamma-benzyl-L-glutamate) and poly(gamma-benzyl-L-glutamate)/poly(ethylene oxide) diblock copolymer films prepared by the Langmuir-Blodgett and casting methods. The highest production of CEA per cell was observed for the CW2 cells on poly(gamma-benzyl-L-glutamate) and its diblock copolymer films prepared by the Langmuir-Blodgett method in the medium containing 5 mM aspirin after 168 hr of inoculation. This originates from the fact that the cell density on the films in the medium containing 5 mM aspirin was the lowest under these conditions. It is suggested that CW2 cells produce CEA more effectively when the cell growth is suppressed by addition of toxic chemicals such as aspirin or by culture on unfavorable films for cell growth.
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Affiliation(s)
- A Higuchi
- Department of Industrial Chemistry, Seikei University, Musashino, 180-8633, Japan
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30
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Iijima M, Kobayakawa T, Saito S, Osawa M, Tsutsumi Y, Hashimoto S, Uchiyama S. Differences in odor identification among clinical subtypes of Parkinson's disease. Eur J Neurol 2011; 18:425-9. [PMID: 20666834 DOI: 10.1111/j.1468-1331.2010.03167.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE Olfactory dysfunction is a non-motor symptom in idiopathic Parkinson's disease (PD). We investigated whether this dysfunction differs among clinical subtypes of PD. METHODS Participants comprised of 90 patients with idiopathic PD and without dementia. Olfactory function was evaluated using the odor stick identification test for Japanese, which evaluated the detection of 12 odorants familiar to Japanese participants. Patients were divided into tremor-dominant type (TDT), akinetic-rigid type (ART), and mixed type (MXT) PD subgroups using part III of the Unified Parkinson's Disease Rating Scale. RESULTS Fifty-five patients were classified as ART, 21 as MXT, and 14 as TDT. There were no differences in age, sex, or duration of illness among the subtypes. Subjective symptoms of impaired sense of smell were significantly higher (P<0.05) in the ART than in the TDT. Mean odor identification score was 4.3 in the ART, 5.2 in MXT, and 6.6 in TDT. It was significantly lower in the ART than in the TDT (P<0.01). CONCLUSION Olfactory dysfunction differed among the clinical subtypes of PD. This suggests that olfactory function might relate to prognosis of patients with PD.
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Affiliation(s)
- M Iijima
- Department of Neurology, Tokyo Women's Medical University School of Medicine, Tokyo, Japan.
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31
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Iijima M, Osawa M, Kobayashi M, Uchiyama S. Efficacy of zonisamide in a case of Parkinson’s disease with intractable resting and re-emergent tremor. Eur J Neurol 2010; 18:e43-4. [DOI: 10.1111/j.1468-1331.2010.03276.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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32
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Uchiyama S, Yasutomi T, Momose T, Nakagawa H, Kamimura M, Kato H. Carpal tunnel pressure measurement during two-portal endoscopic carpal tunnel release. Clin Biomech (Bristol, Avon) 2010; 25:893-8. [PMID: 20655638 DOI: 10.1016/j.clinbiomech.2010.06.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [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] [Received: 02/21/2010] [Revised: 06/12/2010] [Accepted: 06/29/2010] [Indexed: 02/07/2023]
Abstract
BACKGROUND Although there remain concerns of median nerve damage during endoscopic carpal tunnel release for carpal tunnel syndrome, carpal tunnel pressure variations during Chow's two-portal technique have not been well investigated. METHODS We performed a modified two-portal endoscopic carpal tunnel release on 30 patients by inserting a catheter pressure transducer into the carpal tunnel for continuous pressure measurement during the procedure. Grip and pinch strengths, Semmes-Weinstein monofilament test, and nerve conduction studies were examined preoperatively and at postoperative 1, 3, and 6 months. Numbness and the Disabilities of the Arm, Shoulder and Hand score were also evaluated pre and postoperatively. FINDINGS Subjective symptoms and nerve conduction study findings improved uneventfully. The pressure was always observed to be maximum pressure immediately before the cannula was withdrawn from the exit portal, and carpal tunnel pressure >300 mm Hg was recorded in most of the patients. INTERPRETATION A transient increase in the carpal tunnel pressure occurred in all the patients; however, it did not correlate with their clinical outcome or with increased risk of peri-operative complications. Since time-pressure threshold of the median nerve during endoscopic carpal tunnel release is still unknown, our results did not guarantee its safety.
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Affiliation(s)
- S Uchiyama
- Department of Orthopaedic Surgery, Shinshu University School of Medicine, Asahi 3-1-1, Matsumoto 390-8621, Japan.
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33
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Iijima M, Osawa M, Uchiyama S. P5-5 Event-related synchronization and desynchronization during a visual-motor integrated processing in Parkinson's disease. Clin Neurophysiol 2010. [DOI: 10.1016/s1388-2457(10)60527-5] [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: 11/27/2022]
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34
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Kawamichi Y, Makino Y, Matsuda Y, Miyazaki K, Uchiyama S, Ohta H. Riluzole Use during Pregnancy in a Patient with Amyotrophic Lateral Sclerosis: A Case Report. J Int Med Res 2010; 38:720-6. [DOI: 10.1177/147323001003800237] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Pregnancy with amyotrophic lateral sclerosis (ALS) is rare and generally considered dangerous. Riluzole is the only drug approved for use in ALS, but the effect on maternal and fetal health is unknown. We describe the case of an ALS patient taking riluzole throughout pregnancy. A 34-year old Japanese woman, who had been diagnosed with probable ALS 4 years earlier, visited our hospital for abdominal distension, without knowing that she was pregnant. The patient had been taking riluzole for 2 years, inclusive of her gestational months, and we decided to continue administration of the medication. The patient delivered a normal female infant transvaginally at 38 weeks gestation. The patient's neurological status was stable 1 year after delivery and the baby had developed normally. We found that, in this case, riluzole did not cause any side-effects to the pregnant woman or her fetus.
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Affiliation(s)
- Y Kawamichi
- Department of Obstetrics and Gynaecology, Tokyo Women's Medical University, Shinjyuku-ku, Tokyo, Japan
| | - Y Makino
- Department of Obstetrics and Gynaecology, Tokyo Women's Medical University, Shinjyuku-ku, Tokyo, Japan
| | - Y Matsuda
- Department of Obstetrics and Gynaecology, Tokyo Women's Medical University, Shinjyuku-ku, Tokyo, Japan
| | - K Miyazaki
- Department of Neurology, Tokyo Women's Medical University, Shinjyuku-ku, Tokyo, Japan
| | - S Uchiyama
- Department of Neurology, Tokyo Women's Medical University, Shinjyuku-ku, Tokyo, Japan
| | - H Ohta
- Department of Obstetrics and Gynaecology, Tokyo Women's Medical University, Shinjyuku-ku, Tokyo, Japan
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35
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Yoshizawa H, Masuda Y, Kondo C, Momose M, Kusakabe K, Iwata M, Uchiyama S. Neural substrates for attention: A study on resting FDG-PET-neuropsychology correlation in normal subjects. Neuroimage 2009. [DOI: 10.1016/s1053-8119(09)72104-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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36
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Kobayashi M, Ono Y, Shibata N, Kobayashi M, Shimizu Y, Ohta K, Iwata M, Uchiyama S. Correlation between Magnetic Resonance Imaging Findings and Pathological Observations in Tumefactive Multiple Sclerosis. Neuroradiol J 2009; 22:155-63. [DOI: 10.1177/197140090902200203] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2009] [Accepted: 03/21/2009] [Indexed: 11/16/2022] Open
Abstract
Multiple sclerosis (MS) is an inflammatory demyelinating disease of the central nervous system. Tumefactive MS (TMS) is a subtype of MS characterized by solitary or multiple mass lesions with open-ring enhancement on brain magnetic resonance imaging (MRI). Three TMS cases, diagnosed histopathologically by brain biopsy, that were difficult to distinguish from brain tumors or brain abscesses on MRI are presented. On T2-weighted imaging (T2WI) the lesions were high intensity in the center and periphery, with open-ring contrast enhancement at the periphery; iso- to low intensity areas (“T2 low rim”) were seen in the surrounding region. Histopathological examination revealed the characteristic features of TMS: severe central demyelination and focal necrosis, peripheral neovascularization and perivascular inflammatory cell infiltration, and perifocal edema. On immunochemistry, both the endothelial cells of the neovasculature and the surrounding macrophages in the periphery expressed vascular endothelial growth factor and monocyte chemoattractant protein-1, which mediate inflammation and angioneogenesis and increase vascular permeability. These findings correspond to the T2 low rim co-localizing with the site of gadolinium enhancement on MRI. Thus, the present study clearly demonstrates the correlation between the radiological features and the pathophysiological aspects of TMS, which may contribute to more precise diagnosis of TMS.
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Affiliation(s)
- M. Kobayashi
- Department of Neurology, Tokyo Women's Medical University; Tokyo, Japan
| | - Y. Ono
- Department of Neuroradiology, Tokyo Women's Medical University; Tokyo, Japan
| | - N. Shibata
- Department of Pathology, Tokyo Women's Medical University; Tokyo, Japan
| | - M. Kobayashi
- Department of Pathology, Tokyo Women's Medical University; Tokyo, Japan
| | - Y. Shimizu
- Department of Neurology, Tokyo Women's Medical University; Tokyo, Japan
| | - K. Ohta
- Department of Health, Faculty of Science, Tokyo University of Science; Tokyo, Japan
| | - M. Iwata
- Department of Neurology, Tokyo Women's Medical University; Tokyo, Japan
| | - S. Uchiyama
- Department of Neurology, Tokyo Women's Medical University; Tokyo, Japan
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Abstract
There are only three reports of the surgical outcomes of flexor tendon tenolysis after phalangeal fractures. The fracture type, the time to mobilisation following injury and the time between the injury and tenolysis did not affect the results of tenolysis. The outcome only correlated significantly to the total passive range of motion before tenolysis.
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Affiliation(s)
- H Yamazaki
- Advanced Emergency and Critical Care Center, Shinshu University Hospital, Matsumoto City, Japan.
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Abstract
Non-rheumatoid osteoarthritis of the distal radioulnar joint can cause extensor tendon rupture. We analysed the radiographic morphology of the distal radioulnar joint to identify the risk factors for this complication. Forty-one wrist X-rays of 37 patients with extensor tendon rupture caused by distal radioulnar joint osteoarthritis were evaluated retrospectively for the severity of osteoarthritis by the Kellgren/Lawrence scoring system. Measurements were obtained from posteroanterior views. All but one wrist had severe osteoarthritic changes exceeding grade 3. The radiographic features that were different from those of the contralateral wrists included deepening and widening of the sigmoid notch, radial shift of the ulnar head and dorsal inclination of the sigmoid notch. There was no significant association between tendon rupture and the morphology of the ulnar head or ulnar variance. The scallop sign, dorsal inclination of the sigmoid notch and radial shift of the ulnar head are radiological risk factors for extensor tendon ruptures.
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Affiliation(s)
- H Yamazaki
- Department of Orthopaedic Surgery, Shinshu University School of Medicine, Matsumoto, Japan.
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Wang X, Uchiyama S. Amperometric Glucose Sensor Fabricated by Combining Glucose Oxidase Micelle Membrane and Aminated Glassy Carbon Electrode. ANAL LETT 2008. [DOI: 10.1080/00032710802052429] [Citation(s) in RCA: 7] [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: 10/21/2022]
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Teramoto T, Ikeda Y, Fujita T, Goto Y, Oikawa S, Shimada K, Uchiyama S, Yamada N, Yamazaki T. BASELINE DATA OF JPPP (THE LARGE RANDOMIZED CONTROLLED TRIAL OF PRIMARY PREVENTION BY ENTERIC COATED LOW-DOSE ASPIRIN IN JAPAN). ATHEROSCLEROSIS SUPP 2008. [DOI: 10.1016/s1567-5688(08)70877-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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41
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Nakagawa M, Ohmido N, Ishikawa K, Uchiyama S, Fukui K, Azuma T. Anti-Peptide Antibodies for Examining the Conformation, Molecular Assembly and Localization of an Intracellular Protein, Ribosomal Protein S6, In vivo. J Biochem 2007; 143:325-32. [DOI: 10.1093/jb/mvm229] [Citation(s) in RCA: 2] [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: 11/12/2022] Open
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42
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Uchiyama S, Imaeda T, Toh S, Kusunose K, Sawaizumi T, Wada T, Okinaga S, Nishida J, Omokawa S. Comparison of responsiveness of the Japanese Society for Surgery of the Hand version of the carpal tunnel syndrome instrument to surgical treatment with DASH, SF-36, and physical findings. J Orthop Sci 2007; 12:249-53. [PMID: 17530376 PMCID: PMC2778722 DOI: 10.1007/s00776-007-1128-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2006] [Accepted: 02/19/2007] [Indexed: 02/07/2023]
Abstract
BACKGROUND The Japanese Society for Surgery of -the Hand version of the Carpal Tunnel Syndrome Instrument (CTSI-JSSH), which consists of two parts--one for symptom severity (CTSI-SS) and the other for functional status (CTSI-FS)--is a self-administered questionnaire specifically designed for carpal tunnel syndrome. The responsiveness of the CTSI-JSSH was compared with that of the JSSH version of the Disability of Arm, Shoulder, and Hand questionnaire (DASH), the official Japanese version of the 36-Item Short Form Health Survey (SF-36, version 1.2), and physical examinations to elucidate the role of the CTSI-JSSH for evaluating patients with carpal tunnel syndrome. METHODS Preoperatively, a series of 60 patients with carpal tunnel syndrome completed the CTSI-JSSH, DASH, and SF-36. Results of physical examinations, including grip strength, pulp pinch, and static two-point discrimination of the thumb, index, and long fingers, were recorded. Three months after carpal tunnel release surgery the patients were asked to fill out the same questionnaires, and the physical examinations were repeated. The responsiveness of all the instruments was examined by calculating the standardized response mean (SRM) and effect size (ES). Correlation coefficients were calculated between questionnaire change scores and patient satisfaction scores as well as between the CTSI change scores and those of the DASH and SF-36. RESULTS The largest responsiveness was observed in the CTSI-SS (SRM/ES: -1.00/-1.08) followed by the CTSI-FS (-0.76/-0.63), and bodily pain subscale of SF-36 (SF-36-BP, 0.45/0.55), and the DASH (-0.46/-0.47). Only the change scores of the CTSI-SS had significant correlation with patient satisfaction (r = 0.34, P < 0.01). An absolute value of Spearman's correlation coefficient of >0.5 was observed between the change scores of the CTSI-SS and the DASH, the CTSI-SS and the SF-36-BP, the CTSI-FS and the DASH, and the DASH and the SF-36-BP. CONCLUSION The CTSI-JSSH was proven to be more sensitive to clinical changes after carpal tunnel release than the other outcome measures and should be used to evaluate patients with carpal tunnel syndrome who speak Japanese as their native language.
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Affiliation(s)
- S Uchiyama
- Department of Orthopaedic Surgery, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, Nagano, 390-8621, Japan
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Suzuki M, Nagai C, Miyazaki S, Iijima M, Uchiyama S, Iwata M. U - 17 Porencéphalie traumatique chez un boxeur. Rev Neurol (Paris) 2007. [DOI: 10.1016/s0035-3787(07)90630-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Tei H, Uchiyama S, Usui T. Clinical-diffusion mismatch defined by NIHSS and ASPECTS in non-lacunar anterior circulation infarction. J Neurol 2007; 254:340-6. [PMID: 17345045 DOI: 10.1007/s00415-006-0368-8] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [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: 04/27/2006] [Accepted: 08/28/2006] [Indexed: 10/23/2022]
Abstract
OBJECTIVES Instead of the mismatch in MRI between the perfusion-weighted imaging (PWI) lesion and the smaller diffusion-weighted imaging (DWI) lesion (PWI-DWI mismatch), clinical-DWI mismatch (CDM) has been proposed as a new diagnostic marker of brain tissue at risk of infarction in acute ischemic stroke. The Alberta Stroke Program Early CT Score (ASPECTS) has recently been applied to detect early ischemic change of acute ischemic stroke. The present study applies the CDM concept to DWI data and investigated the utility of the CDM defined by the NIH Stroke Scale (NIHSS) and ASPECTS in patients with non-lacunar anterior circulation infarction. METHODS Eighty-seven patients with first ever ischemic stroke within 24 hours of onset with symptoms of non-lacunar anterior circulation infarction with the NIHSS score>or=8 were enrolled. Initial lesion extent was measured by the ASPECTS on DWI within 24 hours, and initial neurological score was measured by the NIHSS. As NIHSS>or=8 has been suggested as a clinical indicator of a large volume of ischemic brain tissue, and the majority of patients with non-lacunar anterior infarction with score of NIHSS<8 had lesions with ASPECTS>or=8 on DWI, so CDM was defined as NIHSS>or=8 and DWI-ASPECTS 8>or=. We divided patients into matched and mismatched patient groups, and compared them with respect to background characteristics, neurological findings, laboratory data, radiological findings and outcome. RESULTS There were 35 CDM-positive patients (P group, 40.2%) and 52 CDM-negative patients (N group , 59.8%). P group patients had a higher risk of early neurological deterioration (END) than N group patients (37.1% vs 13.5%, p<0.05), which were always accompanied by lesion growth defined by 2 or more points decrease on ASPECTS (36 to 72 hours after onset on CT). The NIHSS at entry were significantly lower in the P group, but there was no difference in the outcome at three months measured by the modified Rankin Scale. However, CDM was not an independent predictor of END by multiple logistic regression analysis. CONCLUSIONS Patients with CDM had high rate of early neurological deterioration and lesion growth. CDM defined as NIHSS>or=8 and DWI-ASPECTS>or=8 can be another marker for detecting patients with tissue at risk of infarction, but more work is needed to clarify whether this CDM method is useful in acute stroke management.
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Affiliation(s)
- H Tei
- Department of Neurology, Toda Central General Hospital, 1-19-3 Hon-cho, Toda City, Saitama, 3350023, and Neurological Institute, Tokyo Women's Medical University, Japan.
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Uchiyama S, Itoh H, Naganuma S, Nagaike K, Fukushima T, Tanaka H, Hamasuna R, Chijiiwa K, Kataoka H. Enhanced expression of hepatocyte growth factor activator inhibitor type 2-related small peptide at the invasive front of colon cancers. Gut 2007; 56:215-26. [PMID: 16809422 PMCID: PMC1856747 DOI: 10.1136/gut.2005.084079] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [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: 12/08/2022]
Abstract
BACKGROUND Hepatocyte growth factor activator inhibitor type 2-related small peptide (H2RSP) is a small nuclear protein abundantly expressed in the gastrointestinal epithelium. However, its functions remain unknown. AIMS To investigate the expression and localisation of H2RSP in normal, injured and neoplastic human intestinal tissue. METHODS Immunohistochemical examination and in situ hybridisation for H2RSP were performed using normal and diseased intestinal specimens. Its subcellular localisation and effects on the cellular proliferation and invasiveness were examined using cultured cells. RESULTS In the normal intestine, H2RSP was observed in the nuclei of surface epithelial cells and this nuclear localisation was impaired in regenerating epithelium. In vitro, the nuclear translocation of H2RSP was observed along with increasing cellular density, and an overexpression of H2RSP resulted in a reduced growth rate and enhanced invasiveness. H2RSP expression was down regulated in well-differentiated colorectal adenocarcinomas. However, a marked up regulation of the cytoplasmic H2RSP immunoreactivity was observed in cancer cells at the invasive front. These cells showed low MIB-1 labelling, an enhanced p16 expression and nuclear beta-catenin. The number of H2RSP-positive cells in the invasive front of well-differentiated adenocarcinomas was considerably higher in the cases with lymph node metastases than in node-negative ones. CONCLUSION In the normal intestine, the nuclear accumulation of H2RSP is a marker of differentiated epithelial cells. Although H2RSP was down regulated in colorectal adenocarcinomas, a paradoxical up regulation was observed in actively invading carcinoma cells. H2RSP immunoreactivity at the invasive front may serve as a marker of invasive phenotype of well-differentiated colon cancers.
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Affiliation(s)
- S Uchiyama
- Department of Pathology, Faculty of Medicine, University of Miyazaki, Kiyotake, Miyazaki 889-1692, Japan
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Tomita R, Kokubun K, Hagiwara T, Uchiyama S. Long‐Term Stabilization of the Activity of Ascorbate Oxidase Adsorbed on a Porous Carbon Material by Polymaleimidostyrene. ANAL LETT 2007. [DOI: 10.1080/00032710600964734] [Citation(s) in RCA: 12] [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] [Indexed: 10/23/2022]
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Uchiyama S, Uchiyama M. Physico-Chemical Properties of the Most Suitable Spray Reagent for Fluorescence Enhancement in Thin-Layer Chromatography. ACTA ACUST UNITED AC 2006. [DOI: 10.1080/01483918008060183] [Citation(s) in RCA: 19] [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: 10/23/2022]
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Kobayashi S, Uchiyama S, Sone T, Noda M, Lin L, Mizuno H, Matsunaga S, Fukui K. Calreticulin as a new histone binding protein in mitotic chromosomes. Cytogenet Genome Res 2006; 115:10-5. [PMID: 16974078 DOI: 10.1159/000094795] [Citation(s) in RCA: 12] [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] [Subscribe] [Scholar Register] [Received: 07/22/2005] [Accepted: 03/06/2006] [Indexed: 11/19/2022] Open
Abstract
Calreticulin (CRT) is a multifunctional Ca(2+)-binding protein that mainly functions in the endoplasmic reticulum as a molecular chaperone for newly synthesized proteins. Recently we reported the protein composition of human metaphase chromosomes (Uchiyama et al., 2004), which included CRT. Here we describe new characteristics of CRT in vitro as well as its localization on the surface of metaphase chromosomes in vivo. CRT was detected in the chromosomal fraction by Western blotting and its binding partners were identified as core and linker histones by ligand overlay assay. Surface plasmon resonance sensor analyses revealed that CRT is bound to chromatin fibers. Moreover, we found that CRT has both supercoiling activity, which assists core histone assembly into chromatin fibers, and binding ability to histone H2A/H2B dimers and histone H3/H4 tetramers. Unlike the chromosome scaffold proteins, indirect immunofluorescent staining revealed that CRT is located on the surface of metaphase chromosomes. These results suggest that CRT plays a role which involves chromatin dynamics on the surface of mitotic chromosomes.
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Affiliation(s)
- S Kobayashi
- Department of Biotechnology, Graduate School of Engineering, Osaka University, Yamadaoka, Suita, Japan
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Abstract
OBJECTIVE We investigated the predictors of good prognosis in total anterior circulation infarction (TACI), under conventional therapy. METHODS We enrolled 166 patients with first-ever ischemic stroke within 6 h after onset with symptoms of TACI. Sixty-three patients (38.0%) with good outcome [G group, the modified Rankin Disability Scale (mRS) after 3 months < or =3] and 103 patients (62.0%) with bad outcome (B group, mRS >3) were compared. RESULTS On univariate analysis, G group patients were significantly younger, had lower score in the National Institutes of Health Stroke Scale (NIHSS) of total and consciousness sub-score, had lower rate of clinical deterioration. On cranial CT at entry, three early CT signs [hyperdense middle cerebral artery (MCA) sign, hypodensity of >1/3 MCA and brain swelling] were significantly more frequent in the B group. On the second CT at 24-48 h, infarct area as assessed by the Alberta Stroke Programme Early CT Score (ASPECTS) was significantly smaller in the G group. Multivariate analysis with logistic regression revealed age <7 0 years, NIHSS < or =15, no clinical deterioration, and only no brain swelling in early CT signs, and ASPECTS > or =7 as independent predictors of good prognosis. CONCLUSIONS Some clinical variables are useful in predicting outcome in TACI within the early period after stroke onset.
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Affiliation(s)
- H Tei
- Department of Neurology, Toda Central General Hospital, Toda City, Saitama, Japan.
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Uchiyama S, Itsubo T, Yasutomi T, Nakagawa H, Kamimura M, Kato H. Quantitative MRI of the wrist and nerve conduction studies in patients with idiopathic carpal tunnel syndrome. J Neurol Neurosurg Psychiatry 2005; 76:1103-8. [PMID: 16024888 PMCID: PMC1739757 DOI: 10.1136/jnnp.2004.051060] [Citation(s) in RCA: 73] [Impact Index Per Article: 3.8] [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: 11/04/2022]
Abstract
OBJECTIVE To correlate morphological findings of idiopathic carpal tunnel syndrome (CTS) with the function of the median nerve. METHODS In this study, 105 wrists of 105 women patients with idiopathic CTS, and 36 wrists of 36 female volunteers were subjected to nerve conduction studies and MRI. Cross sectional area, signal intensity ratio, and the flattening ratio of the median nerve, carpal tunnel area, flexor tendon area, synovial area, and intersynovial space, and the palmar bowing of the transverse carpal ligament (TCL) were quantified by MRI and correlated with the severity of the disease determined by nerve conduction studies. RESULTS Cross sectional areas of the median nerve, flexor tendons, and carpal tunnel, and the palmar bowing of the TCL of the CTS groups were greater than in the control group, but differences were not detected among the CTS groups for the area of the flexor tendons and the carpal tunnel. Enlargement, flattening, and high signal intensity of the median nerve at the distal radioulnar joint level were more significant in the advanced than in the earlier stages of the disease. Increase in palmar bowing of the TCL was less prominent in the most advanced group. Linear correlation between the area of the carpal tunnel and palmar bowing of the TCL was noted. CONCLUSION Severity of the disease could be judged by evaluating not only longitudinal changes of signal intensity and configuration of the median nerve, but also palmar bowing of the TCL. Increased palmar bowing of the TCL was found to be associated with an increase in the area of the carpal tunnel.
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Affiliation(s)
- S Uchiyama
- Department of Orthopaedic Surgery, Suwa Red Cross Hospital, Suwa City, 392-8510, Nagano Prefecture, Japan.
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