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Kemmochi Y, Toyoda K, Ishida T, Yasui Y, Shoda T. Evaluation of the Carcinogenic Potential of Enarodustat (JTZ-951), a Hypoxia-Inducible Factor-Prolyl Hydroxylase Inhibitor, in 26-Week Tg.rasH2 Mouse Study and 2-Year Sprague-Dawley Rat Study. Int J Toxicol 2023; 42:489-503. [PMID: 37480334 DOI: 10.1177/10915818231190550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/24/2023]
Abstract
Enarodustat (JTZ-951) is an oral hypoxia-inducible factor-prolyl hydroxylase (HIF-PH) inhibitor for the treatment of anemia with chronic kidney disease. Carcinogenicity of enarodustat was evaluated in a 26-week repeated oral dose study in Transgenic rasH2 (Tg.rasH2) mice and a 2-year repeated oral dose study in Sprague-Dawley (SD) rats. The highest dose levels were set at 6 mg/kg in the Tg.rasH2 mouse study and at 1 mg/kg in the SD rat study based on the maximum tolerated doses in the 3-month and 6-month dose-range finding studies, respectively. Enarodustat did not increase the incidence of any tumors or affect survival in these carcinogenicity studies. Pharmacology-related findings including increases in blood RBC parameters were observed at the highest dose levels for each study. The AUC-based exposure margins as protein-unbound drug base are 16.3-/26.0-fold multiple (males/females) for Tg.rasH2 mice and 1.6-/1.1-fold multiple for SD rats when compared with the estimated exposure in human with chronic kidney disease at 8 mg/day (maximum recommended human dose). In conclusion, enarodustat was considered to have no carcinogenic potential at the clinical dose.
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Affiliation(s)
- Yusuke Kemmochi
- Toxicology Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., Yokohama, Japan
| | - Kaoru Toyoda
- Toxicology Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., Yokohama, Japan
| | - Tomio Ishida
- Toxicology Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., Yokohama, Japan
| | - Yuzo Yasui
- Toxicology Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., Yokohama, Japan
| | - Toshiyuki Shoda
- Toxicology Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., Yokohama, Japan
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2
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Shinozaki Y, Fukui K, Maekawa M, Toyoda K, Yoshiuchi H, Inagaki K, Uno K, Miyajima K, Ohta T. Unilateral nephrectomized SHR/NDmcr-cp rat shows a progressive decline of glomerular filtration with tubular interstitial lesions. Physiol Res 2023; 72:209-220. [PMID: 37159855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/11/2023] Open
Abstract
In patients with diabetic kidney disease (DKD), the estimated glomerular filtration rate (eGFR) or creatinine clearance rate (Ccr) is always used as an index of decline in renal function. However, there are few animal models of DKD that could be used to evaluate renal function based on GFR or Ccr. For this reason, it is desirable to develop animal models to assess renal function, which could also be used for the evaluation of novel therapeutic agents for DKD. Therefore, we aimed to develop such animal model of DKD by using spontaneously hypertensive rat (SHR)/NDmcr-cp (cp/cp) rats with the characteristics of obese type 2 diabetes and metabolic syndrome. As a result, we have found that unilateral nephrectomy (UNx) caused a chronic Ccr decline, development of glomerular sclerosis, tubular lesions, and tubulointerstitial fibrosis, accompanied by renal anemia. Moreover, losartan-mixed diet suppressed the Ccr decline in UNx-performed SHR/NDmcr-cp rats (UNx-SHR/cp rats), with improvement in renal anemia and histopathological changes. These results suggest that UNx-SHR/cp rats could be used as a DKD model for evaluating the efficacy of therapeutic agents based on suppression of renal function decline.
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Affiliation(s)
- Y Shinozaki
- Laboratory of Animal Physiology and Functional Anatomy, Graduate School of Agriculture, Kyoto University, Kyoto, Japan.
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Maekawa M, Maekawa T, Sasase T, Takagi K, Takeuchi S, Kitamoto M, Nakagawa T, Toyoda K, Konishi N, Ohta T, Yamada T. Pathophysiological Analysis of Uninephrectomized db/db Mice as a Model of Severe Diabetic Kidney Disease. Physiol Res 2022; 71:209-217. [DOI: 10.33549/physiolres.934784] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Diabetic nephropathy, included in diabetic kidney disease (DKD), is the primary disease leading to end-stage renal disease (ESRD) or dialysis treatment, accounting for more than 40% of all patients with ESRD or receiving dialysis. Developing new therapeutics to prevent the transition to ESRD or dialysis treatment requires an understanding of the pathophysiology of DKD and an appropriate animal model for drug efficacy studies. In this study, we investigated the pathophysiology of diabetic kidney disease with type 2 diabetes in uninephrectomized db/db mice. In addition, the nephrectomized db/db mice from 10 weeks to 42 weeks were used to assess the efficacy of long-term administration of the angiotensin-II–receptor antagonist losartan. The blood and urinary biochemical parameters and the blood pressure which is a main pharmacological endpoint of the losartan therapy, were periodically measured. And at the end, histopathological analysis was performed. Uninephrectomized db/db mice clearly developed obesity and hyperglycemia from young age. Furthermore, they showed renal pathophysiological changes, such as increased urinary albumin-creatinine ratio (UACR) (the peak value 3104±986 in 40-week-old mice), glomerular hypertrophy and increased fibrotic areas in the tubulointerstitial tubules. The blood pressure in the losartan group was significantly low compared to the normotensive Vehicle group. However, as expected, Losartan suppressed the increase in UACR (829±500) indicating the medication was sufficient, but the histopathological abnormalities including tubular interstitial fibrosis did not improve. These results suggest that the uninephrectomized db/db mice are useful as an animal model of the severe DKD indicated by the comparison of the efficacy of losartan in this model with the efficacy of losartan in clinical practice.
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Affiliation(s)
| | - T Maekawa
- Biological/Pharmacological Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., Osaka, Japan.
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4
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Kataoka Y, Iwai T, Sawada K, Matama H, Honda S, Takagi K, Fujino M, Yoneda S, Otsuka F, Tahara Y, Asaumi Y, Toyoda K, Noguchi T. Substantially elevated thromboembolic and bleeding risks in patients with AMI following acute/subacute stroke events. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.2057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Introduction
AMI infrequently but concomitantly occurs after stroke events. Current guideline recommends primary PCI with DAPT in the setting of AMI. However, this approach is not necessarily applicable in AMI subjects following acute/subacute stroke events due to its bleeding risk. Clinical management and outcomes of these AMI subjects following remains uncertain.
Purpose
To characterize management and clinical outcomes in patients with AMI following acute/subacute stroke events (=post-stroke AMI).
Methods
The current study retrospectively analyzed 2041 AMI patients hospitalized at our institute from 2007 to 2018. Post-stroke AMI was defined as its occurrence within 14 days after ischemic/hemorrhagic stroke. The use of reperfusion and anti-thrombotic therapies, and the occurrence of major adverse cardiovascular events (=CV death, non-fatal MI and non-fatal stroke) and major bleeding events (BARC type 3 or 5) were compared in post-stroke and non-post-stroke AMI patients.
Results
Post-stroke AMI was identified in 1.1% of entire subjects (=23/2041). Of these, 65% of them (=15/23) had AMI within 3 days from the onset of stoke event. Over 60% of them was due to cardioembolic stroke, followed by hemorrhagic (9%), atherothrombotic ones (8%) and other causes (22%). Post-stroke AMI patients were more likely to exhibit Af (p=0.02) and a history of hemodialysis (p=0.009), and have a lower BMI (p=0.04) and hemoglobin level (p=0.02). They were less likely to receive emergent coronary angiography, and primary PCI was conducted in only 65% of post-stroke AMI patients (Table). Furthermore, they more frequently received thrombectomy (p=0.04) alone rather than stent implantation (p=0.002) (Table). With regard to anti-thrombotic therapy, the proportion of DAPT use was significantly lower in post-stroke AMI subjects (52 vs. 89%, p=0.0001), and 17% of them did not receive any anti-thrombotic agents. Of note, only 48% (p=0.04) and 43% (p=0.0001) of post-stroke AMI patients were treated with other established medical therapies including β-blocker and statin, respectively. During the observational period (median = 2.9 years), post-stroke AMI was associated with a greater likelihood experiencing major adverse cardiovascular events (log-rank p<0.001, Figure), CV death (log-rank p<0.0001) and stroke events (log-rank p<0.0001). Furthermore, the frequency of their major bleeding events was substantially elevated (log-rank p<0.001, Figure).
Conclusions
In our real-world data, the adoption of guideline-recommended reperfusion and anti-thrombotic therapies were considerably low in AMI subjects following acute/subacute stroke events. Given their elevated risk of cardiovascular and bleeding events, it is required to establish better therapeutic management for mitigating their thrombotic/bleeding risks.
Funding Acknowledgement
Type of funding sources: None. Table 1Figure 1
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Affiliation(s)
- Y Kataoka
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - T Iwai
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - K Sawada
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - H Matama
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - S Honda
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - K Takagi
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - M Fujino
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - S Yoneda
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - F Otsuka
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - Y Tahara
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - Y Asaumi
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - K Toyoda
- National Cerebral & Cardiovascular Center, Department of Cerebrovascular Medicine and Neurology, Suita, Japan
| | - T Noguchi
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
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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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6
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Tsivgoulis G, Katsanos AH, Seiffge DJ, Paciaroni M, Wilson D, Koga M, Macha K, Cappellari M, Kallmünzer B, Polymeris AA, Toyoda K, Caso V, Werring DJ, Engelter ST, De Marchis GM. Fatal intracranial haemorrhage occurring after oral anticoagulant treatment initiation for secondary stroke prevention in patients with atrial fibrillation. Eur J Neurol 2020; 27:1612-1617. [PMID: 32333493 DOI: 10.1111/ene.14280] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Accepted: 04/15/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND AND PURPOSE In this pooled analysis of seven multicentre cohorts potential differences were investigated in the incidence, characteristics and outcomes between intracranial haemorrhages (ICHs) associated with the use of non-vitamin K antagonist oral anticoagulants (NOAC-ICH) or with vitamin K antagonists (VKA-ICH) in ischaemic stroke patients after oral anticoagulant treatment initiation for atrial fibrillation (AF). METHODS Data from 4912 eligible AF patients who were admitted in a stroke unit with ischaemic stroke or transient ischaemic attack and who were treated with either VKAs or NOACs within 3 months post-stroke were included. Fatal ICH was defined as death occurring during the first 30 days after ICH onset. A meta-analysis of available observational studies reporting 30-day mortality rates from NOAC-ICH or VKA-ICH onset was additionally performed. RESULTS During 5970 patient-years of follow-up 71 participants had an ICH, of whom 20 were NOAC-ICH and 51 VKA-ICH. Patients in the two groups had comparable baseline characteristics, except for the higher prevalence of kidney disease in VKA-ICH patients. There was a non-significant higher number of fatal ICH in patients with VKAs (11 events per 3385 patient-years) than in those with NOACs (three events per 2623 patient-years; hazard ratio 0.32, 95% confidence interval 0.09-1.14). Three-month functional outcomes were similar (P > 0.2) in the two groups. The meta-analysis showed a lower 30-day mortality risk for patients with NOAC-ICH compared to VKA-ICH (relative risk 0.70, 95% confidence interval 0.51-0.95). CONCLUSIONS Non-vitamin K oral anticoagulants for intracranial haemorrhages and VKA-ICH occurring during secondary stroke prevention of AF patients have comparable baseline characteristics and outcomes except for the risk of fatal ICH within 30 days, which might be greater in VKA-ICH.
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Affiliation(s)
- G Tsivgoulis
- Second Department of Neurology, National and Kapodistrian University of Athens School of Medicine, Attikon' University Hospital, Athens, Greece.,Department of Neurology, University of Tennessee Health Science Center, Memphis, TN, USA
| | - A H Katsanos
- Division of Neurology, McMaster University/Population Health Research Institute, Hamilton, ON, Canada
| | - D J Seiffge
- Neurology and Stroke Center, University Hospital and University of Basel, Basel, Switzerland.,Stroke Research Center, Department of Brain Repair and Rehabilitation, UCL Institute of Neurology and the National Hospital for Neurology and Neurosurgery, London, UK.,Department of Neurology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - M Paciaroni
- Stroke Unit and Division of Cardiovascular Medicine, University of Perugia, Perugia, Italy
| | - D Wilson
- Stroke Research Center, Department of Brain Repair and Rehabilitation, UCL Institute of Neurology and the National Hospital for Neurology and Neurosurgery, London, UK
| | - M Koga
- Department of Cerebrovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan
| | - K Macha
- Department of Neurology, University of Erlangen-Nuremberg, Erlangen, Germany
| | - M Cappellari
- Stroke Unit, Department of Neuroscience, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | - B Kallmünzer
- Department of Neurology, University of Erlangen-Nuremberg, Erlangen, Germany
| | - A A Polymeris
- Neurology and Stroke Center, University Hospital and University of Basel, Basel, Switzerland
| | - K Toyoda
- Department of Cerebrovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan
| | - V Caso
- Stroke Unit and Division of Cardiovascular Medicine, University of Perugia, Perugia, Italy
| | - D J Werring
- Stroke Research Center, Department of Brain Repair and Rehabilitation, UCL Institute of Neurology and the National Hospital for Neurology and Neurosurgery, London, UK
| | - S T Engelter
- Neurology and Stroke Center, University Hospital and University of Basel, Basel, Switzerland.,Neurorehabilitation Unit, University Center for Medicine of Aging and Rehabilitation Basel, Felix Platter Hospital, University of Basel, Switzerland
| | - G M De Marchis
- Neurology and Stroke Center, University Hospital and University of Basel, Basel, Switzerland
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7
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Kondo K, Yamada N, Suzuki Y, Hashimoto T, Toyoda K, Takahashi T, Kobayashi A, Sugai S, Yoshinari K. Enhancement of acetaminophen-induced chronic hepatotoxicity in spontaneously diabetic torii (SDT) rats. J Toxicol Sci 2020; 45:245-260. [PMID: 32404557 DOI: 10.2131/jts.45.245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Some patients encounter hepatotoxicity after repeated acetaminophen (APAP) dosing even at therapeutic doses. In the present study, we focused on the diabetic state as one of the suggested risk factors of drug-induced liver injury in humans and investigated the contribution of accelerated gluconeogenesis to the susceptibility to APAP-induced hepatotoxicity using an animal model of type 2 diabetes patients. Sprague-Dawley (SD) rats and spontaneously diabetic torii (SDT) rats were each given APAP at 0 mg/kg, 300 and 500 mg/kg for 35 days by oral gavage. Plasma and urinary glutathione-related metabolites, liver function parameters, and hepatic glutathione levels were compared between the non-APAP-treated SDT and SD rats and between the APAP-treated SDT and SD rats. Hepatic function parameters were not increased at either dose level in the APAP-treated SD rats, but were increased at both dose levels in the APAP-treated SDT rats. Increases in hepatic glutathione levels attributable to the treatment of APAP were noted only in the APAP-treated SD rats. There were differences in the profiles of plasma and urinary glutathione-related metabolites between the non-APAP-treated SD and SDT rats and the plasma/urinary endogenous metabolite profile after treatment with APAP in the SDT rats indicated that hepatic glutathione synthesis was decreased due to accelerated gluconeogenesis. In conclusion, SDT rats were more sensitive to APAP-induced chronic hepatotoxicity than SD rats and the high susceptibility of SDT rats was considered to be attributable to lowered hepatic glutathione levels induced by accelerated gluconeogenesis.
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Affiliation(s)
- Kazuma Kondo
- Toxicology Research Lab., Central Pharmaceutical Research Institute, JAPAN TOBACCO INC.,Department of Molecular Toxicology, School of Pharmaceutical Sciences, University of Shizuoka
| | - Naohito Yamada
- Toxicology Research Lab., Central Pharmaceutical Research Institute, JAPAN TOBACCO INC
| | - Yusuke Suzuki
- Toxicology Research Lab., Central Pharmaceutical Research Institute, JAPAN TOBACCO INC
| | - Tatsuji Hashimoto
- Toxicology Research Lab., Central Pharmaceutical Research Institute, JAPAN TOBACCO INC
| | - Kaoru Toyoda
- Toxicology Research Lab., Central Pharmaceutical Research Institute, JAPAN TOBACCO INC
| | - Tadakazu Takahashi
- Toxicology Research Lab., Central Pharmaceutical Research Institute, JAPAN TOBACCO INC
| | - Akio Kobayashi
- Toxicology Research Lab., Central Pharmaceutical Research Institute, JAPAN TOBACCO INC
| | - Shoichiro Sugai
- Toxicology Research Lab., Central Pharmaceutical Research Institute, JAPAN TOBACCO INC
| | - Kouichi Yoshinari
- Department of Molecular Toxicology, School of Pharmaceutical Sciences, University of Shizuoka
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8
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Takahashi T, Matsuura C, Toyoda K, Suzuki Y, Yamada N, Kobayashi A, Sugai S, Shimoi K. Estimation of potential risk of allyl alcohol induced liver injury in diabetic patients using type 2 diabetes spontaneously diabetic Torii-Lepr fa (SDT fatty) rats. J Toxicol Sci 2019; 44:759-776. [PMID: 31708533 DOI: 10.2131/jts.44.759] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
In order to estimate the potential risk of chemicals including drug in patients with type 2 diabetes mellitus (T2DM), we investigated allyl alcohol induced liver injury using SD rats and Spontaneously Diabetic Torii-Leprfa (SDT fatty) rats as a model for human T2DM. The diabetic state is one of the risk factors for chemically induced liver injury because of lower levels of glutathione for detoxification by conjugation with chemicals and environmental pollutants and their reactive metabolites. Allyl alcohol is metabolized to a highly reactive unsaturated aldehyde, acrolein, which is detoxified by conjugation with glutathione. Therefore, we used allyl alcohol as a model compound. Our investigations showed that SDT fatty rats appropriately mimic the diabetic state in humans. The profiles of glucose metabolism, hepatic function tests and glutathione synthesis in the SDT fatty rats were similar to those in patients with T2DM. Five-week oral dosing with allyl alcohol to the SDT fatty rats revealed that the allyl alcohol induced liver injury was markedly enhanced in the SDT fatty rats when compared with the SD rats and the difference was considered to be due to lower hepatic detoxification of acrolein, the reactive metabolite of allyl alcohol, by depleted hepatic glutathione synthesis. Taking all the results of the present study into consideration, the potential for allyl alcohol to induce liver injury is considered to be higher in diabetic patients than in healthy humans.
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Affiliation(s)
- Tadakazu Takahashi
- Toxicology Research Lab., Central Pharmaceutical Research Institute, JAPAN TOBACCO INC.,Graduate School of Integrated Pharmaceutical and Nutritional Sciences, Graduate Program in Environmental Health Sciences, University of Shizuoka
| | - Chizuru Matsuura
- Toxicology Research Lab., Central Pharmaceutical Research Institute, JAPAN TOBACCO INC
| | - Kaoru Toyoda
- Toxicology Research Lab., Central Pharmaceutical Research Institute, JAPAN TOBACCO INC
| | - Yusuke Suzuki
- Toxicology Research Lab., Central Pharmaceutical Research Institute, JAPAN TOBACCO INC
| | - Naohito Yamada
- Toxicology Research Lab., Central Pharmaceutical Research Institute, JAPAN TOBACCO INC
| | - Akio Kobayashi
- Toxicology Research Lab., Central Pharmaceutical Research Institute, JAPAN TOBACCO INC
| | - Shoichiro Sugai
- Toxicology Research Lab., Central Pharmaceutical Research Institute, JAPAN TOBACCO INC
| | - Kayoko Shimoi
- Graduate School of Integrated Pharmaceutical and Nutritional Sciences, Graduate Program in Environmental Health Sciences, University of Shizuoka
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9
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Hamatani Y, Nagai T, Honda Y, Nakano H, Honda S, Iwakami N, Asaumi Y, Aiba T, Noguchi T, Kusano K, Yokoyama H, Toyoda K, Yasuda S, Ogawa H, Anzai T. P6385Impact of admission plasma D-dimer level on short-term risk of ischemic stroke in hospitalized patients with acute heart failure. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p6385] [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)
- Y Hamatani
- National Cerebral and Cardiovascular Center, Cardiovascular Medicine, Osaka, Japan
| | - T Nagai
- Hokkaido University Graduate School of Medicine, Cardiovascular Medicine, Hokkaido, Japan
| | - Y Honda
- National Cerebral and Cardiovascular Center, Cardiovascular Medicine, Osaka, Japan
| | - H Nakano
- National Cerebral and Cardiovascular Center, Cardiovascular Medicine, Osaka, Japan
| | - S Honda
- National Cerebral and Cardiovascular Center, Cardiovascular Medicine, Osaka, Japan
| | - N Iwakami
- National Cerebral and Cardiovascular Center, Cardiovascular Medicine, Osaka, Japan
| | - Y Asaumi
- National Cerebral and Cardiovascular Center, Cardiovascular Medicine, Osaka, Japan
| | - T Aiba
- National Cerebral and Cardiovascular Center, Cardiovascular Medicine, Osaka, Japan
| | - T Noguchi
- National Cerebral and Cardiovascular Center, Cardiovascular Medicine, Osaka, Japan
| | - K Kusano
- National Cerebral and Cardiovascular Center, Cardiovascular Medicine, Osaka, Japan
| | - H Yokoyama
- National Cerebral and Cardiovascular Center, Cardiovascular Medicine, Osaka, Japan
| | - K Toyoda
- National Cerebral and Cardiovascular Center, Cerebrovascular Medicine, Osaka, Japan
| | - S Yasuda
- National Cerebral and Cardiovascular Center, Cardiovascular Medicine, Osaka, Japan
| | - H Ogawa
- National Cerebral and Cardiovascular Center, Cardiovascular Medicine, Osaka, Japan
| | - T Anzai
- Hokkaido University Graduate School of Medicine, Cardiovascular Medicine, Hokkaido, Japan
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Toyoda K, Suzuki Y, Muta K, Masuyama T, Kakimoto K, Kobayashi A, Shoda T, Sugai S. High fructose diet feeding accelerates diabetic nephropathy in Spontaneously Diabetic Torii (SDT) rats. J Toxicol Sci 2018; 43:45-58. [PMID: 29415951 DOI: 10.2131/jts.43.45] [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] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Diabetic nephropathy (DN) is one of the complications of diabetes and is now the most common cause of end-stage renal disease. Fructose is a simple carbohydrate that is present in fruits and honey and is used as a sweetener because of its sweet taste. Fructose has been reported to have the potential to progress diabetes and DN in humans even though fructose itself does not increase postprandial plasma glucose levels. In this study, we investigated the effects of high fructose intake on the kidney of the Spontaneously Diabetic Torii (SDT) rats which have renal lesions similar to those in DN patients and compared these with the effects in normal SD rats. This study revealed that a 4-week feeding of the high fructose diet increased urinary excretion of kidney injury makers for tubular injury and accelerated mainly renal tubular and interstitial lesions in the SDT rats but not in normal rats. The progression of the nephropathy in the SDT rats was considered to be related to increased internal uric acid and blood glucose levels due to the high fructose intake. In conclusion, high fructose intake exaggerated the renal lesions in the SDT rats probably due to effects on the tubules and interstitium through metabolic implications for uric acid and glucose.
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Affiliation(s)
- Kaoru Toyoda
- Toxicology Research Laboratories, Central Pharmaceutical Research Institute, JAPAN TOBACCO INC
| | - Yusuke Suzuki
- Toxicology Research Laboratories, Central Pharmaceutical Research Institute, JAPAN TOBACCO INC
| | - Kyotaka Muta
- Toxicology Research Laboratories, Central Pharmaceutical Research Institute, JAPAN TOBACCO INC
| | - Taku Masuyama
- Toxicology Research Laboratories, Central Pharmaceutical Research Institute, JAPAN TOBACCO INC
| | - Kochi Kakimoto
- Toxicology Research Laboratories, Central Pharmaceutical Research Institute, JAPAN TOBACCO INC
| | - Akio Kobayashi
- Toxicology Research Laboratories, Central Pharmaceutical Research Institute, JAPAN TOBACCO INC
| | - Toshiyuki Shoda
- Toxicology Research Laboratories, Central Pharmaceutical Research Institute, JAPAN TOBACCO INC
| | - Shoichiro Sugai
- Toxicology Research Laboratories, Central Pharmaceutical Research Institute, JAPAN TOBACCO INC
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Kemmochi Y, Ohta T, Motohashi Y, Kaneshige A, Katsumi S, Kakimoto K, Yasui Y, Anagawa-Nakamura A, Toyoda K, Taniai-Riya E, Takahashi A, Shoda T, Yamada T. Pathophysiological analyses of skeletal muscle in obese type 2 diabetes SDT fatty rats. J Toxicol Pathol 2018; 31:113-123. [PMID: 29750000 PMCID: PMC5938212 DOI: 10.1293/tox.2017-0064] [Citation(s) in RCA: 13] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Accepted: 12/30/2017] [Indexed: 12/25/2022] Open
Abstract
Sarcopenia is the age-related decrease of muscle mass and function. Diabetes and obesity
are known to be risk factors that exacerbate sarcopenia, but the underlying mechanism of
diabetes-related sarcopenia is still unknown. Obese type 2 diabetes SDT fatty rats show
early onset of severe diabetes and there have been no reports on the characteristics of
their skeletal muscle. Therefore, pathophysiological analyses were performed for the
skeletal muscle in these rats. Diabetic male SDT fatty rats were sacrificed at 8, 16, 24,
32 and 40 weeks of age. Age-matched Sprague Dawley (SD) rats were used as the normal
control. In addition to biological blood parameters, the soleus and the extensor digitorum
longus muscles were examined for muscle weight, histopathology, and protein synthesis and
degradation. Muscle grip strength was also examined. These results revealed that the
muscle weights of the SDT fatty rats were significantly decreased from 16 weeks of age.
The mean cross-sectional area of muscle fibers in the SDT fatty rats decreased from 24
weeks of age. Increased intramyocellular lipid accumulation, identified by
immunohistochemistry for adipophilin and TEM, was observed in the SDT fatty rats from 8
weeks of age. Plasma insulin-like growth factor (IGF)-1 levels and muscle strength in the
SDT fatty rats decreased at 24 weeks of age and thereafter. These pathophysiological
findings have been reported both in sarcopenia in aged humans and in patients with
diabetes. In conclusion, the SDT fatty rat was considered to be a useful model for
analysis of diabetes-related sarcopenia.
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Affiliation(s)
- Yusuke Kemmochi
- Toxicology Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., 23 Naganuki, Hadano, Kanagawa 257-0024, Japan
| | - Takeshi Ohta
- Biology and Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., 1-1 Murasaki-cho, Takatsuki, Osaka 569-1125, Japan
| | - Yu Motohashi
- Biology and Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., 1-1 Murasaki-cho, Takatsuki, Osaka 569-1125, Japan
| | - Akihiro Kaneshige
- Biology and Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., 1-1 Murasaki-cho, Takatsuki, Osaka 569-1125, Japan
| | - Sohei Katsumi
- Biology and Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., 1-1 Murasaki-cho, Takatsuki, Osaka 569-1125, Japan
| | - Kochi Kakimoto
- Toxicology Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., 23 Naganuki, Hadano, Kanagawa 257-0024, Japan
| | - Yuzo Yasui
- Toxicology Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., 23 Naganuki, Hadano, Kanagawa 257-0024, Japan
| | - Akiko Anagawa-Nakamura
- Toxicology Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., 23 Naganuki, Hadano, Kanagawa 257-0024, Japan
| | - Kaoru Toyoda
- Toxicology Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., 23 Naganuki, Hadano, Kanagawa 257-0024, Japan
| | - Eriko Taniai-Riya
- Toxicology Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., 23 Naganuki, Hadano, Kanagawa 257-0024, Japan
| | - Akemi Takahashi
- Toxicology Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., 23 Naganuki, Hadano, Kanagawa 257-0024, Japan
| | - Toshiyuki Shoda
- Toxicology Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., 23 Naganuki, Hadano, Kanagawa 257-0024, Japan
| | - Takahisa Yamada
- Department of Agrobiology, Faculty of Agriculture, Niigata University, 2-8050 Igarashi, Nishiku, Niigata, Niigata 950-2181, Japan
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12
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Kimura M, Nakayasu K, Ohshima Y, Fujita N, Nakashima N, Jozaki H, Numano T, Shimizu T, Shimomura M, Sasaki F, Fujiki T, Nakashima T, Toyoda K, Hoshi H, Sakusabe T, Naito Y, Kawaguchi K, Watanabe H, Tani S. SS-MIX: A Ministry Project to Promote Standardized Healthcare Information Exchange. Methods Inf Med 2018; 50:131-9. [PMID: 21206962 DOI: 10.3414/me10-01-0015] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [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: 02/17/2010] [Accepted: 08/29/2010] [Indexed: 11/09/2022]
Abstract
Summary
Objectives: To promote healthcare information exchange between providers and to allow hospital information systems (HIS) export information in standardized format (HL7 and DICOM) in an environment of widespread legacy systems, which only can export data in proprietary format.
Methods: Through the Shizuoka prefecture EMR project in 2004–2005, followed by the ministry’s SS-MIX project, many software products have been provided, which consist of 1) a standardized storage to receive HL7 v2.5 mes sages of patient demographics, prescription orders, laboratory results, and diagnostic disease in ICD-10, 2) a referral letter creation system, 3) a formatted document creation system, 4) a progress note/nursing record system, and 5) an archive/viewer to incorporate incoming healthcare data CD and allow users to view on HIS terminal. Meanwhile, other useful applications have been produced, such as adverse event reporting and clinical information retrieval. To achieve the above-mentioned objectives, these software products were created and propagated, because users can use these software products, provided that their HIS can export the above information to the standardized storage in HL7 v2.5 format.
Results: In 20 hospitals of Japan, the standardized storage has been installed and some applications have been used. As major HIS vendors are shipping HIS with HL7 export function since 2007, HIS of 594 hospitals in Japan became capable of exporting data in HL7 v2.5 format (as of March 2010).
Conclusions: In high CPOE installation rate (85% in 400+ bed hospitals), though most of them only capable of exporting data in proprietary format, prefecture and ministry projects were effective to promote healthcare information exchange between providers. The standardized storage became an infrastructure for many useful applications, and many hospitals started using them. Ministry designation of proposed healthcare standards was effective so as to allow vendors to conform their products, and users to install them.
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Affiliation(s)
- M Kimura
- Hamamatsu University, Hamamatsu, Japan
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13
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Yokota C, Arimizu T, Tomari S, Hino T, Nishimura K, Wada S, Ohnishi H, Toyoda K, Minematsu K. Increasing stroke awareness in schoolchildren and their parents and improving call-to-door time by school-based intervention by emergency medical technicians: The Akashi project. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.260] [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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14
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Hino T, Yokota C, Nishimura K, Nakai M, Arimizu T, Tomari S, Wada S, Kato S, Kuwabara K, Takekawa H, Okamura T, Ohnishi H, Toyoda K, Minematsu K. School-based stroke education using a manga for elementary schoolchildren aiming at spreading awareness of stroke: A meta-analysis. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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15
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Tanimoto A, Shinozaki Y, Yamamoto Y, Katsuda Y, Taniai-Riya E, Toyoda K, Kakimoto K, Kimoto Y, Amano W, Konishi N, Hayashi M. A novel JAK inhibitor JTE-052 reduces skin inflammation and ameliorates chronic dermatitis in rodent models: Comparison with conventional therapeutic agents. Exp Dermatol 2017; 27:22-29. [DOI: 10.1111/exd.13370] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/13/2017] [Indexed: 01/28/2023]
Affiliation(s)
- Atsuo Tanimoto
- Biological/Pharmacological Research Laboratories; Central Pharmaceutical Research Institute; Japan Tobacco Inc.; Takatsuki Osaka Japan
| | - Yuichi Shinozaki
- Biological/Pharmacological Research Laboratories; Central Pharmaceutical Research Institute; Japan Tobacco Inc.; Takatsuki Osaka Japan
| | - Yasuo Yamamoto
- Biological/Pharmacological Research Laboratories; Central Pharmaceutical Research Institute; Japan Tobacco Inc.; Takatsuki Osaka Japan
| | - Yoshiaki Katsuda
- Biological/Pharmacological Research Laboratories; Central Pharmaceutical Research Institute; Japan Tobacco Inc.; Takatsuki Osaka Japan
| | - Eriko Taniai-Riya
- Toxicology Research Laboratories; Central Pharmaceutical Research Institute; Japan Tobacco Inc.; Hadano Kanagawa Japan
| | - Kaoru Toyoda
- Toxicology Research Laboratories; Central Pharmaceutical Research Institute; Japan Tobacco Inc.; Hadano Kanagawa Japan
| | - Kochi Kakimoto
- Toxicology Research Laboratories; Central Pharmaceutical Research Institute; Japan Tobacco Inc.; Hadano Kanagawa Japan
| | - Yukari Kimoto
- Biological/Pharmacological Research Laboratories; Central Pharmaceutical Research Institute; Japan Tobacco Inc.; Takatsuki Osaka Japan
| | - Wataru Amano
- Biological/Pharmacological Research Laboratories; Central Pharmaceutical Research Institute; Japan Tobacco Inc.; Takatsuki Osaka Japan
| | - Noriko Konishi
- Biological/Pharmacological Research Laboratories; Central Pharmaceutical Research Institute; Japan Tobacco Inc.; Takatsuki Osaka Japan
| | - Mikio Hayashi
- Biological/Pharmacological Research Laboratories; Central Pharmaceutical Research Institute; Japan Tobacco Inc.; Takatsuki Osaka Japan
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16
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Toyoda K, Maruyama D, Kurosawa S, Suzuki T, Yuda S, Yamauchi N, Makita S, Fukuhara S, Munakata W, Taniguchi H, Maeshima A, Kobayashi Y, Tobinai K. Fertility and social reintegration after modified CODOX-M/IVAC with or without rituximab: A questionnaire survey of non-Hodgkin lymphoma. Hematol Oncol 2017. [DOI: 10.1002/hon.2439_109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- K. Toyoda
- Department of Hematology; National Cancer Center Hospital; Tokyo Japan
| | - D. Maruyama
- Department of Hematology; National Cancer Center Hospital; Tokyo Japan
| | - S. Kurosawa
- Department of Hematopoietic Stem Cell Transplantation; National Cancer Center Hospital; Tokyo Japan
| | - T. Suzuki
- Department of Hematology; National Cancer Center Hospital; Tokyo Japan
| | - S. Yuda
- Department of Hematology; National Cancer Center Hospital; Tokyo Japan
| | - N. Yamauchi
- Department of Hematology; National Cancer Center Hospital; Tokyo Japan
| | - S. Makita
- Department of Hematology; National Cancer Center Hospital; Tokyo Japan
| | - S. Fukuhara
- Department of Hematology; National Cancer Center Hospital; Tokyo Japan
| | - W. Munakata
- Department of Hematology; National Cancer Center Hospital; Tokyo Japan
| | - H. Taniguchi
- Department of Pathology; National Cancer Center Hospital; Tokyo Japan
| | - A.M. Maeshima
- Department of Pathology; National Cancer Center Hospital; Tokyo Japan
| | - Y. Kobayashi
- Department of Hematology; National Cancer Center Hospital; Tokyo Japan
| | - K. Tobinai
- Department of Hematology; National Cancer Center Hospital; Tokyo Japan
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17
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Nozaki K, Maruyama D, Tajima K, Maeshima A, Itami J, Shichijo T, Yuda S, Suzuki T, Toyoda K, Yamauchi N, Makita S, Fukuhara S, Munakata W, Kobayashi Y, Taniguchi H, Tobinai K. LONG-TERM FOLLOW-UP AFTER LOCALIZED RADIOTHERAPY IN PATIENTS WITH TRANSFORMED B-CELL LYMPHOMA TREATED WITH RITUXIMAB-CONTAINING CHEMOTHERAPY. Hematol Oncol 2017. [DOI: 10.1002/hon.2438_43] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- K. Nozaki
- Hematology; National Cancer Center Hospital; Tokyo Japan
| | - D. Maruyama
- Hematology; National Cancer Center Hospital; Tokyo Japan
| | - K. Tajima
- Hematology; National Cancer Center Hospital; Tokyo Japan
| | - A.M. Maeshima
- Pathology and Clinical Laboratory; National Cancer Center Hospital; Tokyo Japan
| | - J. Itami
- Radiation Oncology; National Cancer Center Hospital; Tokyo Japan
| | - T. Shichijo
- Hematology; National Cancer Center Hospital; Tokyo Japan
| | - S. Yuda
- Hematology; National Cancer Center Hospital; Tokyo Japan
| | - T. Suzuki
- Hematology; National Cancer Center Hospital; Tokyo Japan
| | - K. Toyoda
- Hematology; National Cancer Center Hospital; Tokyo Japan
| | - N. Yamauchi
- Hematology; National Cancer Center Hospital; Tokyo Japan
| | - S. Makita
- Hematology; National Cancer Center Hospital; Tokyo Japan
| | - S. Fukuhara
- Hematology; National Cancer Center Hospital; Tokyo Japan
| | - W. Munakata
- Hematology; National Cancer Center Hospital; Tokyo Japan
| | - Y. Kobayashi
- Hematology; National Cancer Center Hospital; Tokyo Japan
| | - H. Taniguchi
- Pathology and Clinical Laboratory; National Cancer Center Hospital; Tokyo Japan
| | - K. Tobinai
- Hematology; National Cancer Center Hospital; Tokyo Japan
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18
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Shichijo T, Maruyama D, Tajima K, Yuda S, Maeshima A, Suzuki T, Toyoda K, Yamauchi N, Makita S, Fukuhara S, Munakata W, Kobayashi Y, Taniguchi H, Tobinai K. ASSESSMENT INDEX OF CLINICAL TRANSFORMATION FROM FOLLICULAR LYMPHOMA (FL) TO DIFFUSE LARGE B-CELL LYMPHOMA (DLBCL) IN THE RITUXIMAB ERA. Hematol Oncol 2017. [DOI: 10.1002/hon.2439_123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- T. Shichijo
- Hematology; National Cancer Center Hospital; Tokyo Japan
| | - D. Maruyama
- Hematology; National Cancer Center Hospital; Tokyo Japan
| | - K. Tajima
- Hematology; National Cancer Center Hospital; Tokyo Japan
| | - S. Yuda
- Hematology; National Cancer Center Hospital; Tokyo Japan
| | - A.M. Maeshima
- Pathology and Clinical Laboratory; National Cancer Center Hospital; Tokyo Japan
| | - T. Suzuki
- Hematology; National Cancer Center Hospital; Tokyo Japan
| | - K. Toyoda
- Hematology; National Cancer Center Hospital; Tokyo Japan
| | - N. Yamauchi
- Hematology; National Cancer Center Hospital; Tokyo Japan
| | - S. Makita
- Hematology; National Cancer Center Hospital; Tokyo Japan
| | - S. Fukuhara
- Hematology; National Cancer Center Hospital; Tokyo Japan
| | - W. Munakata
- Hematology; National Cancer Center Hospital; Tokyo Japan
| | - Y. Kobayashi
- Hematology; National Cancer Center Hospital; Tokyo Japan
| | - H. Taniguchi
- Pathology and Clinical Laboratory; National Cancer Center Hospital; Tokyo Japan
| | - K. Tobinai
- Hematology; National Cancer Center Hospital; Tokyo Japan
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19
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Taniai-Riya E, Miyajima K, Kakimoto K, Ohta T, Yasui Y, Kemmochi Y, Anagawa-Nakamura A, Toyoda K, Takahashi A, Shoda T. Hepatocellular adenoma with severe fatty change in a male Spontaneously Diabetic Torii rat. J Toxicol Pathol 2016; 30:69-73. [PMID: 28190927 PMCID: PMC5293694 DOI: 10.1293/tox.2016-0051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 09/30/2016] [Indexed: 12/11/2022] Open
Abstract
The Spontaneously Diabetic Torii (SDT) rat is a rat model of nonobese type 2 diabetes
mellitus, and hepatocellular adenomas have not been reported in this model. We report a
hepatocellular adenoma with severe fatty change in a male 42-week-old SDT rat fed a
high-fat diet. At necropsy, the animal had a whitish nodular mass of approximately 2 cm in
diameter in the right medial lobe. Histologically, the mass was well demarcated from the
surrounding tissues, slightly compressing the adjacent hepatic parenchyma and widely
compartmented by fibrous connective tissues. The mass consisted of vacuolated tumor cells
resembling hepatocytes with a solid and occasionally trabecular growth pattern. Abundant
neutral lipids, which were positive for fat with Oil Red O stain and which
ultrastructurally had moderately dense material, were contained within the vacuoles of the
tumor cells. Immunohistochemically, the tumor cells showed an increase in immunoreactivity
or number for Cytokeratin 8/18 and proliferating cell nuclear antigen but were negative
for mesenchymal markers. From these findings, the mass could be distinguished from
hepatocellular hyperplasia and was diagnosed as hepatocellular adenoma. In rats,
hepatocellular adenoma accompanied by severe fatty change is rare, and this is the first
report of a hepatocellular tumor with severe fatty change in a SDT rat.
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Affiliation(s)
- Eriko Taniai-Riya
- Toxicology Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., 23 Naganuki, Hadano, Kanagawa 257-0024, Japan
| | - Katsuhiro Miyajima
- Toxicology Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., 23 Naganuki, Hadano, Kanagawa 257-0024, Japan
| | - Kochi Kakimoto
- Toxicology Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., 23 Naganuki, Hadano, Kanagawa 257-0024, Japan
| | - Takeshi Ohta
- Biological/Pharmacological Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc.,1-1 Murasaki-cho, Takatsuki, Osaka 569-1125, Japan
| | - Yuzo Yasui
- Toxicology Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., 23 Naganuki, Hadano, Kanagawa 257-0024, Japan
| | - Yusuke Kemmochi
- Toxicology Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., 23 Naganuki, Hadano, Kanagawa 257-0024, Japan
| | - Akiko Anagawa-Nakamura
- Toxicology Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., 23 Naganuki, Hadano, Kanagawa 257-0024, Japan
| | - Kaoru Toyoda
- Toxicology Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., 23 Naganuki, Hadano, Kanagawa 257-0024, Japan
| | - Akemi Takahashi
- Toxicology Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., 23 Naganuki, Hadano, Kanagawa 257-0024, Japan
| | - Toshiyuki Shoda
- Toxicology Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., 23 Naganuki, Hadano, Kanagawa 257-0024, Japan
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20
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Kishimoto I, Makino H, Ohata Y, Tamanaha T, Tochiya M, Kusano K, Anzai T, Toyoda K, Yasuda S, Minematsu K, Ogawa H. Impact of B-type natriuretic peptide (BNP) on development of atrial fibrillation in people with Type 2 diabetes. Diabet Med 2016; 33:1118-24. [PMID: 26173591 DOI: 10.1111/dme.12856] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/07/2015] [Indexed: 01/08/2023]
Abstract
AIMS To examine if a simple biomarker can identify people with diabetes who are at high risk of atrial fibrillation. METHODS A retrospective cohort study was conducted at a single centre in people with Type 2 diabetes referred to our department between January 2000 and December 2007. In 517 consecutive people without any history, signs or symptoms of atrial fibrillation at baseline, the association between baseline B-type natriuretic peptide level and future atrial fibrillation incidence was examined, with adjustments for other potentially confounding factors. RESULTS A total of 28 people were diagnosed with new-onset atrial fibrillation during a median 6-year follow-up. When people were categorized into three groups according to B-type natriuretic peptide clinical thresholds (20 and 100 pg/ml), hazard ratios for the development of atrial fibrillation in the middle and highest B-type natriuretic peptide groups were 2.8 and 9.4, respectively, compared with the lowest B-type natriuretic peptide group. Time-dependent receiver-operating curve analysis identified a threshold for B-type natriuretic peptide to detect atrial fibrillation development of 52.8 pg/ml (sensitivity 75.2%, specificity 68.8%). The B-type natriuretic peptide predictive value was independent of and similar to that of left atrial size and ventricular dimension. CONCLUSION In people with Type 2 diabetes, high baseline B-type natriuretic peptide levels were significantly associated with future atrial fibrillation development.
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Affiliation(s)
- I Kishimoto
- Department of Endocrinology and Metabolism, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - H Makino
- Department of Endocrinology and Metabolism, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Y Ohata
- Department of Endocrinology and Metabolism, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - T Tamanaha
- Department of Endocrinology and Metabolism, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - M Tochiya
- Department of Endocrinology and Metabolism, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - K Kusano
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - T Anzai
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - K Toyoda
- Department of Cerebrovascular Medicine, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - S Yasuda
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - K Minematsu
- Department of Cerebrovascular Medicine, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - H Ogawa
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Osaka, Japan
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21
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Kanda T, Oba H, Toyoda K, Furui S. Macrocyclic Gadolinium-Based Contrast Agents Do Not Cause Hyperintensity in the Dentate Nucleus. AJNR Am J Neuroradiol 2016; 37:E41. [PMID: 26915573 DOI: 10.3174/ajnr.a4710] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- T Kanda
- Department of Radiology Teikyo University School of Medicine Itabashi-ku, Japan
| | - H Oba
- Department of Radiology Teikyo University School of Medicine Itabashi-ku, Japan
| | - K Toyoda
- Department of Radiology Teikyo University School of Medicine Itabashi-ku, Japan
| | - S Furui
- Department of Radiology Teikyo University School of Medicine Itabashi-ku, Japan
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22
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Ura K, Furusyo N, Ogawa E, Hayashi T, Mukae H, Shimizu M, Toyoda K, Murata M, Hayashi J. Serum WFA(+) -M2BP is a non-invasive liver fibrosis marker that can predict the efficacy of direct-acting anti-viral-based triple therapy for chronic hepatitis C. Aliment Pharmacol Ther 2016; 43:114-24. [PMID: 26503582 DOI: 10.1111/apt.13431] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Revised: 07/28/2015] [Accepted: 09/25/2015] [Indexed: 12/12/2022]
Abstract
BACKGROUND The Wisteria floribunda agglutinin-positive human Mac-2-binding protein (WFA(+) -M2BP) is a new liver fibrosis glycobiomarker with unique fibrosis-related glyco-alteration. WFA(+) -M2BP is also a useful surrogate marker for the risk of developing hepatocellular carcinoma and for the liver functional reserve. AIM To evaluate the diagnostic ability of WFA(+) -M2BP for liver fibrosis in the clinical setting and the clinical utility of WFA(+) -M2BP for predicting the efficacy of direct-acting anti-viral (DAA) treatment for chronic hepatitis C patients. METHODS The study included 159 genotype 1 hepatitis C patients who received DAA-based treatment (telaprevir or simeprevir) combined with pegylated-interferon alpha plus ribavirin (108 telaprevir- and 51 simeprevir-based triple treatment). The relation between baseline serum WFA(+) -M2BP and treatment efficacy was evaluated. RESULTS The serum WFA(+) -M2BP level significantly increased with the progress of liver fibrosis. Area under the receiver operating characteristic curve analysis identified 2.17 as the cut-off index (COI) for WFA(+) -M2BP for diagnosing advanced fibrosis. The sustained virological response (SVR) rate was significantly, negatively correlated with the serum WFA(+) -M2BP level. Multiple logistic regression analysis found a low serum WFA(+) -M2BP level (<2.17 COI) to be independently associated with SVR (odds ratio, 4.35, P = 0.027). Even for prior nonresponders and patients with the interleukin-28B minor allele or histological advanced fibrosis, treatment outcome was favourable for patients with a low serum WFA(+) -M2BP level. CONCLUSION Serum WFA(+) -M2BP is a non-invasive liver fibrosis marker useful for predicting the efficacy of DAA-based triple therapy for chronic hepatitis C patients.
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Affiliation(s)
- K Ura
- Department of General Internal Medicine, Kyushu University Hospital, Fukuoka, Japan.,Department of Environmental Medicine and Infectious Disease, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - N Furusyo
- Department of General Internal Medicine, Kyushu University Hospital, Fukuoka, Japan.,Department of Environmental Medicine and Infectious Disease, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - E Ogawa
- Department of General Internal Medicine, Kyushu University Hospital, Fukuoka, Japan.,Department of Environmental Medicine and Infectious Disease, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - T Hayashi
- Department of General Internal Medicine, Kyushu University Hospital, Fukuoka, Japan
| | - H Mukae
- Department of General Internal Medicine, Kyushu University Hospital, Fukuoka, Japan
| | - M Shimizu
- Department of General Internal Medicine, Kyushu University Hospital, Fukuoka, Japan
| | - K Toyoda
- Department of General Internal Medicine, Kyushu University Hospital, Fukuoka, Japan
| | - M Murata
- Department of General Internal Medicine, Kyushu University Hospital, Fukuoka, Japan.,Department of Environmental Medicine and Infectious Disease, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - J Hayashi
- Kyushu General Internal Medicine Center, Haradoi Hospital, Fukuoka, Japan
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Honda T, Maruyama D, Kurihara H, Maeshima A, Yuda S, Toyoda K, Yamauchi N, Makita S, Fukuhara S, Munakata W, Kobayashi Y, Taniguchi H, Saito Y, Tobinai K. 288O Role of FDG-PET/CT and gastrointestinal endoscopy in the staging of diffuse large B-cell lymphoma (DLBCL). Ann Oncol 2015. [DOI: 10.1093/annonc/mdv526.04] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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24
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Haji S, Kiyasu J, Choi I, Suehiro Y, Toyoda K, Tsuda M, Takamatsu A, Nakashima Y, Miyoshi H, Shiratsuchi M, Yamasaki S, Uike N, Abe Y. Administration of an anti-CC chemokine receptor 4 monoclonal antibody, mogamulizumab, before allogeneic bone marrow transplantation for adult T-cell leukemia/lymphoma. Bone Marrow Transplant 2015; 51:432-4. [PMID: 26524267 DOI: 10.1038/bmt.2015.254] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- S Haji
- Department of Hematology, National Kyushu Cancer Center, National Hospital Organization, Fukuoka, Japan
| | - J Kiyasu
- Department of Pathology, School of Medicine, Kurume University, Fukuoka, Japan.,Department of Hematology, Iizuka Hospital, Fukuoka, Japan
| | - I Choi
- Department of Hematology, National Kyushu Cancer Center, National Hospital Organization, Fukuoka, Japan
| | - Y Suehiro
- Department of Hematology, National Kyushu Cancer Center, National Hospital Organization, Fukuoka, Japan
| | - K Toyoda
- Department of Hematology, National Kyushu Cancer Center, National Hospital Organization, Fukuoka, Japan
| | - M Tsuda
- Department of Hematology, National Kyushu Cancer Center, National Hospital Organization, Fukuoka, Japan
| | - A Takamatsu
- Department of Hematology, National Kyushu Cancer Center, National Hospital Organization, Fukuoka, Japan
| | - Y Nakashima
- Department of Hematology, National Kyushu Cancer Center, National Hospital Organization, Fukuoka, Japan
| | - H Miyoshi
- Department of Pathology, School of Medicine, Kurume University, Fukuoka, Japan
| | - M Shiratsuchi
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - S Yamasaki
- Department of Hematology, National Kyushu Medical Center, National Hospital Organization, Fukuoka, Japan
| | - N Uike
- Department of Hematology, National Kyushu Cancer Center, National Hospital Organization, Fukuoka, Japan
| | - Y Abe
- Department of Hematology, National Kyushu Cancer Center, National Hospital Organization, Fukuoka, Japan
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25
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Affiliation(s)
- T Kanda
- Department of Radiology Teikyo University School of Medicine Itabashi-ku, Japan
| | - H Oba
- Department of Radiology Teikyo University School of Medicine Itabashi-ku, Japan
| | - K Toyoda
- Department of Radiology Teikyo University School of Medicine Itabashi-ku, Japan
| | - S Furui
- Department of Radiology Teikyo University School of Medicine Itabashi-ku, Japan
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26
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Tanaka U, Sanui T, Fukuda T, Toyoda K, Taketomi T, Atomura R, Yamamichi K, Maeda H, Nishimura F. Sprouty2 inhibition promotes proliferation and migration of periodontal ligament cells. Oral Dis 2015; 21:977-86. [DOI: 10.1111/odi.12369] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Revised: 08/16/2015] [Accepted: 08/26/2015] [Indexed: 11/30/2022]
Affiliation(s)
- U Tanaka
- Department of Periodontology; Division of Oral Rehabilitation; Faculty of Dental Science; Kyushu University; Fukuoka Japan
| | - T Sanui
- Department of Periodontology; Division of Oral Rehabilitation; Faculty of Dental Science; Kyushu University; Fukuoka Japan
| | - T Fukuda
- Department of Periodontology; Division of Oral Rehabilitation; Faculty of Dental Science; Kyushu University; Fukuoka Japan
| | - K Toyoda
- Department of Periodontology; Division of Oral Rehabilitation; Faculty of Dental Science; Kyushu University; Fukuoka Japan
| | - T Taketomi
- Dental and Oral Medical Centre; Kurume University School of Medicine; Fukuoka Japan
| | - R Atomura
- Department of Periodontology; Division of Oral Rehabilitation; Faculty of Dental Science; Kyushu University; Fukuoka Japan
| | - K Yamamichi
- Department of Periodontology; Division of Oral Rehabilitation; Faculty of Dental Science; Kyushu University; Fukuoka Japan
| | - H Maeda
- Department of Endodontology and Operative Dentistry; Division of Oral Rehabilitation; Faculty of Dental Science; Kyushu University; Fukuoka Japan
| | - F Nishimura
- Department of Periodontology; Division of Oral Rehabilitation; Faculty of Dental Science; Kyushu University; Fukuoka Japan
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27
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Okada K, Furusyo N, Kainuma M, Ogawa E, Mukae H, Toyoda K, Murata M, Hayashi J. Raloxifene improves arterial stiffness and the carotid IMT progression in postmenopausal osteopenia/osteoporosis women over 12 months. Atherosclerosis 2015. [DOI: 10.1016/j.atherosclerosis.2015.04.503] [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: 10/23/2022]
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28
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Sakamoto Y, Sato S, Hama Y, Nagatsuka K, Minematsu K, Toyoda K. The relationship between the pre-admission CHA2DS2-VASc score and proximal artery occlusion in patients with acute stroke and atrial fibrillation. Eur J Neurol 2015; 22:1081-7. [DOI: 10.1111/ene.12711] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Accepted: 02/06/2015] [Indexed: 11/30/2022]
Affiliation(s)
- Y. Sakamoto
- Department of Cerebrovascular Medicine; National Cerebral and Cardiovascular Center; Suita Japan
| | - S. Sato
- Department of Cerebrovascular Medicine; National Cerebral and Cardiovascular Center; Suita Japan
| | - Y. Hama
- Department of Cerebrovascular Medicine; National Cerebral and Cardiovascular Center; Suita Japan
| | - K. Nagatsuka
- Department of Neurology; National Cerebral and Cardiovascular Center; Suita Japan
| | - K. Minematsu
- Department of Cerebrovascular Medicine; National Cerebral and Cardiovascular Center; Suita Japan
| | - K. Toyoda
- Department of Cerebrovascular Medicine; National Cerebral and Cardiovascular Center; Suita Japan
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Anagawa-Nakamura A, Kakimoto K, Miyajima K, Yasui Y, Kemmochi Y, Toyoda K, Taniai E, Takahashi A, Shoda T. Immunohistochemical Characterization of Spontaneous Sertoli Cell Clusters in the Seminiferous Tubules of C57BL/6J Mice. Toxicol Pathol 2015; 43:743-6. [DOI: 10.1177/0192623314565368] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Cell clusters were observed in the seminiferous tubules of C57BL/6J mice as a spontaneous lesion in a 2-week toxicity study, and they were demonstrated to be basically composed of Sertoli cells by immunohistochemistry for claudin-11 and GATA-4 (GATA-binding protein 4), which are both Sertoli cell markers. The clusters were composed of about 5 to 50 cells, which had eosinophilic and occasionally vacuolated cytoplasm with an unclear cell boundary. The cell clusters involved some sperm. No mitotic figures were observed and no immunoreactivity for proliferating cell nuclear antigen (PCNA) was detected in the clusters. In most cases, the cell clusters were observed in seminiferous tubules that also showed degenerative changes. In rare instances, cell aggregates immunohistochemically positive for claudin-11 were observed in the lumen of the epididymis, suggesting that some of the Sertoli cell clusters were sloughed off from the seminiferous epithelium into the epididymal ducts. To our knowledge, this is the first report of Sertoli cell clusters in any animal species except for transgenic or surgically altered animals.
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Affiliation(s)
- Akiko Anagawa-Nakamura
- Pathology Department, Toxicology Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., Kanagawa, Japan
| | - Kochi Kakimoto
- Pathology Department, Toxicology Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., Kanagawa, Japan
| | - Katsuhiro Miyajima
- Pathology Department, Toxicology Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., Kanagawa, Japan
| | - Yuzo Yasui
- Pathology Department, Toxicology Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., Kanagawa, Japan
| | - Yusuke Kemmochi
- Pathology Department, Toxicology Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., Kanagawa, Japan
| | - Kaoru Toyoda
- Pathology Department, Toxicology Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., Kanagawa, Japan
| | - Eriko Taniai
- Pathology Department, Toxicology Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., Kanagawa, Japan
| | - Akemi Takahashi
- Pathology Department, Toxicology Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., Kanagawa, Japan
| | - Toshiyuki Shoda
- Pathology Department, Toxicology Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., Kanagawa, Japan
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30
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Katsuda Y, Sasase T, Tadaki H, Mera Y, Motohashi Y, Kemmochi Y, Toyoda K, Kakimoto K, Kume S, Ohta T. Contribution of hyperglycemia on diabetic complications in obese type 2 diabetic SDT fatty rats: effects of SGLT inhibitor phlorizin. Exp Anim 2015; 64:161-9. [PMID: 25736710 PMCID: PMC4427731 DOI: 10.1538/expanim.14-0084] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
The spontaneously diabetic torii (SDT) fatty rat is a new model of type 2 diabetes
showing overt obesity, hyperglycemia and hyperlipidemia. With early onset of diabetes
mellitus, diabetic microvascular complications, including nephropathy, peripheral
neuropathy and retinopathy, are observed at young ages. In the present study, blood
glucose levels of female SDT fatty rats were controlled with phlorizin, a non-selective
SGLT inhibitor, to examine whether and how these complications are caused by
hyperglycemia. Phlorizin treatment adequately controlled plasma glucose levels during the
experiment. At 29 weeks of age, urinary albumin excretion considerably increased in SDT
fatty rats. Glomerulosclerosis and tubular pathological findings also indicate diabetic
nephropathy. These renal parameters tended to decrease with phlorizin; however, effects
were partial. Sciatic nerve conduction velocities were significantly delayed in SDT fatty
rats compared with Sprague-Dawley (SD) rats. Intraepidermal nerve fiber density, an
indicator of subclinical small nerve fiber neuropathy, significantly decreased in SDT
fatty rats. Retinal dysfunction (prolongation of peak latency for oscillatory potential in
electroretinograms) and histopathological eye abnormalities, including retinal folding and
mature cataracts were also observed. Both nerve and eye disorders were prevented with
phlorizin. These findings indicate that severe hyperglycemia mainly causes diabetic
complications in SDT fatty rats. However, other factors, such as hyperlipidemia and
hypertension, may affect diabetic nephropathy. These characteristics of diabetic
complications will become helpful in evaluating new drugs for diabetic complications using
SDT fatty rats.
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Affiliation(s)
- Yoshiaki Katsuda
- Biological/Pharmacological Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., 1-1 Murasaki-cho, Takatsuki, Osaka 569-1125, Japan
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31
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Kemmochi Y, Miyajima K, Ohta T, Sasase T, Yasui Y, Toyoda K, Kakimoto K, Shoda T, Kakehashi A. Ocular inflammation in uveal tract in aged obese type 2 diabetic rats (Spontaneously Diabetic Torii fatty rats). J Diabetes Res 2014; 2014:629016. [PMID: 25295283 PMCID: PMC4180194 DOI: 10.1155/2014/629016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Revised: 09/02/2014] [Accepted: 09/04/2014] [Indexed: 01/15/2023] Open
Abstract
We report uveitis observed in an obese type 2 diabetes rat model, Spontaneously Diabetic Torii Lepr(fa) (SDT fatty) rats aged over 50 weeks. The eyes of SDT fatty rats (16 animals: 7 males and 9 females with 50 or 60 weeks of age) were examined histopathologically. Infiltration of inflammatory cells in the uveal tract was observed in 13 of 16 animals. One female showed severe inflammation affecting the entire uveal tract including the iris, ciliary body, and choroid with a variety of inflammatory cells (neutrophils, lymphocytes, and macrophages). Those changes clinically mimic the findings of diabetic iridocyclitis in diabetic patients. Uveitis associated with diabetes can occur in diabetic patients but the pathogenesis still remains unknown. Since increased extramedullary hematopoiesis in the spleen and abscess in the genital and lower urinary tracts were observed in some SDT fatty rats, increased susceptibility to infection, prolongation of inflammatory states, and disorders of the immune system were considered to be possible factors of the uveitis in aged SDT fatty rats. There have been few reports on how diabetes has influence on the development of uveitis associated with bacterial infection. The SDT fatty rat can be an animal model to investigate diabetes-associated uveitis.
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Affiliation(s)
- Yusuke Kemmochi
- Japan Tobacco Inc., Central Pharmaceutical Research Institute, Toxicology Research Laboratories, 23 Naganuki, Hadano, Kanagawa 257-0024, Japan
- *Yusuke Kemmochi:
| | - Katsuhiro Miyajima
- Japan Tobacco Inc., Central Pharmaceutical Research Institute, Toxicology Research Laboratories, 23 Naganuki, Hadano, Kanagawa 257-0024, Japan
| | - Takeshi Ohta
- Japan Tobacco Inc., Central Pharmaceutical Research Institute, Biological/Pharmacological Research Laboratories, Osaka 569-1125, Japan
| | - Tomohiko Sasase
- Japan Tobacco Inc., Central Pharmaceutical Research Institute, Biological/Pharmacological Research Laboratories, Osaka 569-1125, Japan
| | - Yuzo Yasui
- Japan Tobacco Inc., Central Pharmaceutical Research Institute, Toxicology Research Laboratories, 23 Naganuki, Hadano, Kanagawa 257-0024, Japan
| | - Kaoru Toyoda
- Japan Tobacco Inc., Central Pharmaceutical Research Institute, Toxicology Research Laboratories, 23 Naganuki, Hadano, Kanagawa 257-0024, Japan
| | - Kochi Kakimoto
- Japan Tobacco Inc., Central Pharmaceutical Research Institute, Toxicology Research Laboratories, 23 Naganuki, Hadano, Kanagawa 257-0024, Japan
| | - Toshiyuki Shoda
- Japan Tobacco Inc., Central Pharmaceutical Research Institute, Toxicology Research Laboratories, 23 Naganuki, Hadano, Kanagawa 257-0024, Japan
| | - Akihiro Kakehashi
- Department of Ophthalmology, Saitama Medical Center, Jichi Medical University, Saitama 330-8503, Japan
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32
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Ogawa E, Furusyo N, Murata M, Ikezaki H, Ihara T, Hayashi T, Toyoda K, Okada K, Kainuma M, Kajiwara E, Takahashi K, Satoh T, Hayashi J. Valuable antiviral therapeutic options for the treatment of chronic hepatitis C patients with thrombocytopenia. J Viral Hepat 2013; 20:838-46. [PMID: 24304453 DOI: 10.1111/jvh.12109] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2012] [Accepted: 02/21/2013] [Indexed: 01/22/2023]
Abstract
Thrombocytopenia in patients with chronic hepatitis C may represent an obstacle for the initiation of antiviral treatment. The aim of this study was to evaluate factors predictive of successful pegylated interferon (PEG-IFN) α2b and ribavirin (RBV) treatment for patients with thrombocytopenia with no history of splenectomy or partial splenic embolization. One hundred and fifty-one chronic hepatitis C patients (genotype 1: n = 110, genotype 2: n = 41) with TCP (<100 × 10(9) /L) at baseline were enrolled. Pretreatment variables included interleukin 28B (IL28B) genotype (rs8099917) and homoeostasis model assessment of insulin resistance score (HOMA-IR). The kinetics of haemoglobin and platelets according to the inosine triphosphatase (ITPA) genotype (rs1127354) were investigated. Sustained virological response (SVR) was significantly more frequent in hepatitis C virus (HCV) genotype 2 (65.9%) than in genotype 1 (34.5%) patients (P < 0.0001). Multiple logistic regression analysis of HCV genotype 1 extracted IL28B TT genotype [odds ratio (OR) 5.97, P = 0.006] and HOMA-IR <2.5 (OR 7.14, P = 0.0016) as significant independent pretreatment predictors of SVR. The analyses of HCV genotype 2 showed that HOMA-IR was significantly related to SVR, but IL28B genotype was not. Patients with ITPA CC genotype showed a significant haemoglobin reduction and lower degree of platelets decrease than those with ITPA CA/AA genotypes. The most common reason for premature discontinuation of treatment was the development of hepatocellular carcinoma (n = 8, 5.3%). In conclusion, HOMA-IR is a useful predictor of SVR for patients with thrombocytopenia infected with HCV genotype 1 or 2 treated with PEG-IFNα2b and RBV. The inclusion of IL28B, ITPA genotypes and HOMA-IR adds valuable therapeutic information.
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Affiliation(s)
- E Ogawa
- Department of General Internal Medicine, Kyushu University Hospital, Fukuoka, Japan; Department of Environmental Medicine and Infectious Disease, Kyushu University, Fukuoka, Japan
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Sakamoto Y, Koga M, Kimura K, Nagatsuka K, Okuda S, Kario K, Hasegawa Y, Okada Y, Yamagami H, Furui E, Nakagawara J, Shiokawa Y, Okata T, Kobayashi J, Tanaka E, Minematsu K, Toyoda K. Intravenous thrombolysis for patients with reverse magnetic resonance angiography and diffusion-weighted imaging mismatch: SAMURAI and NCVC rt-PA Registries. Eur J Neurol 2013; 21:419-26. [PMID: 24261412 DOI: 10.1111/ene.12308] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2013] [Accepted: 10/21/2013] [Indexed: 11/29/2022]
Abstract
BACKGROUND AND PURPOSE The characteristics of reverse magnetic resonance angiography and diffusion-weighted imaging (MRA-DWI) mismatch (RMM), defined as a large DWI lesion in the absence of major artery occlusion (MAO), remain unknown, especially in patients treated with intravenous recombinant tissue plasminogen activator (rt-PA). METHODS Patients with stroke in the middle cerebral artery territory were included. Early ischaemic changes (EIC) were assessed with the Alberta Stroke Program Early CT Score on DWI (DWI-ASPECTS). All patients were divided into four groups based on the presence of MAO and a DWI-ASPECTS cut-off value of <7. RMM was defined as DWI-ASPECTS <7 without MAO. Clinical characteristics, symptomatic intracerebral hemorrhage (sICH) and favorable functional outcome (modified Rankin Scale score 0-2) at 90 days were compared amongst the four groups. RESULTS Of the 486 patients enrolled (167 women, median age 74 years, median initial National Institutes of Health Stroke Scale score 13), reverse MRA-DWI mismatch was observed in 24 (5%). Of the clinical characteristics, cardioembolism was the only factor that was independently associated with RMM [odds ratio (OR) 5.49, 95% confidence interval (CI) 1.25-24.1]. Multivariable analyses revealed that patients with RMM more commonly had sICH than those with DWI-ASPECTS ≥ 7 irrespective of the presence (OR 5.44, 95% CI 1.13-26.1) or absence (13.1, 2.07-83.3) of MAO, and they had a more favorable functional outcome than those with DWI-ASPECTS < 7 plus MAO (7.45, 2.39-23.2). CONCLUSION RMM was observed in 5% of patients treated with rt-PA and associated with cardioembolism. Patients with RMM may benefit from thrombolysis compared with those with EIC with MAO, although increment in the rate of sICH is a concern.
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Affiliation(s)
- Y Sakamoto
- Department of Cerebrovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan
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Osaki M, Miyashita F, Koga M, Fukuda M, Shigehatake Y, Nagatsuka K, Minematsu K, Toyoda K. Simple clinical predictors of stroke outcome based on National Institutes of Health Stroke Scale score during 1-h recombinant tissue-type plasminogen activator infusion. Eur J Neurol 2013; 21:411-8. [DOI: 10.1111/ene.12294] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2013] [Accepted: 09/23/2013] [Indexed: 11/30/2022]
Affiliation(s)
- M. Osaki
- Department of Cerebrovascular Medicine; National Cerebral and Cardiovascular Center; Osaka Japan
| | - F. Miyashita
- Department of Cerebrovascular Medicine; National Cerebral and Cardiovascular Center; Osaka Japan
| | - M. Koga
- Division of Stroke Care Unit; National Cerebral and Cardiovascular Center; Osaka Japan
| | - M. Fukuda
- Department of Cerebrovascular Medicine; National Cerebral and Cardiovascular Center; Osaka Japan
| | - Y. Shigehatake
- Department of Cerebrovascular Medicine; National Cerebral and Cardiovascular Center; Osaka Japan
| | - K. Nagatsuka
- Department of Neurology; National Cerebral and Cardiovascular Center; Osaka Japan
| | - K. Minematsu
- Department of Cerebrovascular Medicine; National Cerebral and Cardiovascular Center; Osaka Japan
| | - K. Toyoda
- Department of Cerebrovascular Medicine; National Cerebral and Cardiovascular Center; Osaka Japan
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Akiyama H, Hasegawa Y, Koga M, Yamagami H, Okuda S, Okada Y, Kimura K, Shiokawa Y, Nakagawara J, Furui E, Kario K, Toyoda K. Correlation between anti-thrombotic drugs and hematoma expansion in acute intracerebral hemorrhage under strict blood pressure-lowering management: SAMURAI-ICH study. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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36
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Shimono N, Nishida R, Kadowaki M, Kiyosuke M, Murata M, Yamada T, Yasunaga S, Gondo T, Toyoda K, Hoshina T, Hayashi J. P332 A retrospective study of bloodstream infections caused by Klebsiella pneumoniae in a university hospital in Japan. Int J Antimicrob Agents 2013. [DOI: 10.1016/s0924-8579(13)70573-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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37
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Gondo T, Yasunaga S, Kiyosuke M, Yamada T, Kadowaki M, Murata M, Toyoda K, Hoshina T, Shimono N, Hayashi J. P051: Factors responsible for methicillin-resistant Staphylococcus aureus outbreak in the neonatal intensive care unit. Antimicrob Resist Infect Control 2013. [PMCID: PMC3688433 DOI: 10.1186/2047-2994-2-s1-p51] [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: 11/20/2022] Open
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Gelev S, Toshev S, Trajceska L, Pavleska S, Selim G, Dzekova P, Shikole A, Gelev S, Toshev S, Trajceska L, Pavleska S, Selim G, Dzekova P, Shikole A, Ulu SM, Yilmaz F, Ahsen A, Akci A, Yuksel S, Mihaescu A, Olariu N, Avram C, Schiller O, Schiller A, Xiao DM, Niu JY, Gu Y, Drechsler C, van den Broek H, Vervloet M, Hoekstra T, Dekker F, Ketteler M, Brandenburg V, Turkvatan A, Kirkpantur A, Mandiroglu S, Afsar B, Seloglu B, Alkis M, Erkula S, GURBUZ H, Serin M, CALIK Y, Mandiroglu F, Balci M, Choi BS, Choi SR, Park HS, Hong YA, Chung BH, Kim YS, Yang CW, Kim YS, Park CW, Jung JY, Sung JY, Kim AJ, Kim HS, Lee C, Ro H, Chang JH, Lee HH, Chung W, Sezer S, Bal Z, Tutal E, Bal U, Erkmen Uyar M, Ozdemir Acar N, Karakas Y, Sahin G, Urfali F, Bal C, Akcar Degirmenci N, Sirmagul B, Janda K, Krzanowski M, Dumnicka P, Kusnierz-Cabala B, Sulowicz W, Balci M, Kirkpantur A, Mandiroglu S, Afsar B, Seloglu B, Alkis M, Serin M, CALIK Y, Erkula S, GURBUZ H, Mandiroglu F, Turkvatan A, Valtuille RA, Gonzalez MS, Casos ME, Yoshida T, Yamashita M, Hayashi M, Raikou VD, Tentolouris N, Makropoulos I, Kaisidis P, Boletis JN, Abdalla AA, Roche D, Forbes JF, Hannigan A, Hegarty A, Cronin CJ, Casserly LF, Stack AG, Guinsburg A, Raimann JG, Usvyat L, Kooman J, Marelli C, Etter M, Marcelli D, Levin NW, Kotanko P, Kim CS, Choi JS, Bae EH, Ma SK, Kim SW, Ryu JH, Lee S, Ryu DR, Kim SJ, Kang DH, Choi KB, Shoji T, Tsuchikura S, Shimomura N, Kakiya R, Tsujimoto Y, Tabata T, Emoto M, Nishizawa Y, Inaba M, Selim G, Stojceva-Taneva O, Tozija L, Georgievska-Ismail L, Gelev S, Dzekova-Vidimliski P, Trajceska L, Petronievic Z, Sikole A, Wu CJ, Pan CF, Chen HH, Lin CJ, Kim Y, Kim JK, Song YR, Kim SG, Kim HJ, Kuwahara M, Bannai K, Kikuchi K, Yamato H, Segawa H, Miyamoto KI, De Mauri A, Chiarinotti D, Ruva CE, David P, Capurro F, De Leo M, Han JH, Kim HR, Ko KI, Kim CH, Koo HM, Doh FM, Lee MJ, Oh HJ, Han SH, Yoo TH, Choi KH, Kang SW, Shibata K, Sohara H, Kuji T, Kawata S, Kogudhi N, Nishihara M, Satta H, Jung JY, Ro H, Lee C, Kim SM, Kim AJ, Kim HS, Chang JH, Lee HH, Chung W, Kramann R, Erpenbeck J, Becker M, Brandenburg V, Kruger T, Marx N, Floege J, Schlieper G, Power A, Fogarty D, Wheeler D, Kerschbaum J, Schwarz CP, Mayer G, Prajitno CW, Matsuzawa R, Matsunaga A, Ishii A, Abe Y, Yoneki K, Harada M, Takagi Y, Yoshida A, Takahira N, Sirch J, Pfeiffer S, Fischlein T, El-Nahid MS, Issac MS, Bal Z, Tutal E, Bal U, Erkmen Uyar M, Guliyev O, Sayin B, Sezer S, Bajari T, Hermann M, Gmeiner B, Regele H, Aumayr K, Gensberger ET, Scharrer S, Sengoge G, Novo A, Tania S, Anes E, Domingues A, Mendes E, Batista G, Viana J, Rroji M, Cafka M, Seferi S, Seiti J, Petrela E, Likaj E, Thereska N, Selim G, Stojceva-Taneva O, Tozija L, Georgievska-Ismail L, Gelev S, Dzekova-Vidimliski P, Trajceska L, Petronievic Z, Sikole A, Turkmen K, Ozcicek F, Erdur F, Turk S, Yeksan M, Tonbul H, Castellano S, Palomares I, Merello JI, Mandiroglu S, Torkvatan A, Balci M, Seloglu B, Alkis M, Serin M, Erkula S, Gurbuz H, Calik Y, Afsar B, Mandiroglu F, Kirkpantur A, Ulusal Okyay G, Okyay K, Polattas Solak E, Sahinaslan A, Pasaoglu O, Ayerden Ebinc F, Boztepe Derici U, Sindel S, Arinsoy T, Lee YK, Son SY, Choi MJ, Lee SM, Yoon JW, Koo JR, Noh JW, Vaziri ND, Matias P, Amaral T, Ferreira AC, Mendes M, Azevedo A, Jorge C, Aires I, Gil C, Ferreira A, Carretero Dios D, Merello Godino JI, Moran Risco JE, Castellano Gasch S, Schwermer K, Hoppe K, Klysz P, Radziszewska D, Sikorska D, Nealis J, Polcyn-Adamczak M, Zaremba-Drobnik D, Pawlaczyk K, Oko A, Mentese A, Yavuz A, Karahan C, Sumer A, Ozkan G, Ulusoy S, Yildiz G, Duman A, Aydin H, Yilmaz A, Hur E, Magden K, Cetin G, Candan F, Franczyk-Skora B, Gluba A, Kowalczyk M, Banach M, Rysz J, Novo A, Domingues A, Preto L, Sousa T, Mendes E, Batista G, Vaz J, Oue M, Kuragano T, Hamahata S, Fukao W, Toyoda K, Nakanishi T, Otsubo S, Tsuchiya K, Akiba T, Nitta K, Afsar B, Saglam M, Yuceturk C, Agca E, Tosic J, Djuric Z, Popovic J, Buzadzic I, Djuric P, Jankovic A, Dimkovic N, Simone S, Dell'Oglio MP, Ciccone M, Castellano G, Corciulo R, Balestra C, Giangrande M, Gigante M, Grandaliano G, Gesualdo L, Pertosa GP, Mohamed EA, Marouane B, Mohamed Reda EF, Aziz R, Hicham B, Youssef B, Abdennasser EK, Salaheddine T, Mohammed A, Hwang JC, Jiang MY, Lu YH, Wang CT, Grzegorzewska A, Cieszynski K, Niepolski L, Sowinska A, Abdallah E, Al-Helal B, Waked E, Abdel-Khalik A, Nabil M, El-Shanawany F, Tekce H, Kursat S, Bahadir Colak H, Aktas G, Ozcicek A, Turkmen K, Ozcicek F, Akbas E, Demirtas L, Ozbicer A, Cetinkay R, Capoglu I, Valocikova I, Valocik G, Vachalcova M, Kolesarova E, Nowak A, Friedrich B, Artunc F, Serra A, Breidthardt T, Twerenbold R, Peter M, Potocki M, Muller C. Cardiovascular complications in CKD 5D. Nephrol Dial Transplant 2013. [DOI: 10.1093/ndt/gft147] [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: 11/13/2022] Open
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Toyoda K, Sato S, Koga M, Yamamoto H, Nakagawara J, Furui E, Shiokawa Y, Hasegawa Y, Okuda S, Sakai N, Kimura K, Okada Y, Yoshimura S, Hoshino H, Uesaka Y, Nakashima T, Itoh Y, Ueda T, Nishi T, Gotoh J, Nagatsuka K, Arihiro S, Yamaguchi T, Minematsu K. Run-up to participation in ATACH II in Japan. J Vasc Interv Neurol 2012; 5:1-5. [PMID: 23230457 PMCID: PMC3517030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Intracerebral hemorrhage (ICH) is a major cause of morbidity and mortality in Japan. Seventeen Japanese institutions are participating in the Antihypertensive Treatment for Acute Cerebral Hemorrhage (ATACH) II Trial (ClinicalTrials.gov no. NCT01176565; UMIN 000006526). This phase III trial is designed to determine the therapeutic benefit of early intensive systolic blood pressure (BP) lowering for acute hypertension in ICH patients. This report explains the long run-up to reach the start of patient registration in ATACH II in Japan, including our preliminary study, a nationwide survey on antihypertensive treatment for acute ICH patients, a multicenter study for hyperacute BP lowering (the SAMURAI-ICH study), revision of the official Japanese label for intravenous nicardipine, and construction of the infrastructure for the trial.
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Affiliation(s)
- K Toyoda
- Department of Cerebrovascular Medicine, National Cerebral and Cardiovascular Center, 5-7-1 Fujishiro-dai, Suita 565-8565, Japan
| | - S Sato
- Department of Cerebrovascular Medicine, National Cerebral and Cardiovascular Center, 5-7-1 Fujishiro-dai, Suita 565-8565, Japan
| | - M Koga
- Division of Stroke Care Unit, National Cerebral and Cardiovascular Center, 5-7-1 Fujishiro-dai, Suita 565-8565, Japan
| | - H Yamamoto
- Department of Advanced Medical Technology Development, National Cerebral and Cardiovascular Center, 5-7-1 Fujishiro-dai, Suita 565-8565, Japan
| | - J Nakagawara
- Department of Neurosurgery and Stroke Center, Nakamura Memorial Hospital, Sapporo, Japan
| | - E Furui
- Department of Stroke Neurology, Kohnan Hospital, Sendai, Japan
| | - Y Shiokawa
- Department of Neurosurgery and Stroke Center, Kyorin University School of Medicine, Mitaka, Japan
| | - Y Hasegawa
- Department of Neurology, St. Marianna University School of Medicine, Kawasaki, Japan
| | - S Okuda
- Department of Neurology, National Hospital Organization Nagoya Medical Center, Nagoya, Japan
| | - N Sakai
- Stroke Center, Kobe City Medical Center General Hospital, Kobe, Japan
| | - K Kimura
- Department of Stroke Medicine, Kawasaki Medical School, Kurashiki, Japan
| | - Y Okada
- Department of Cerebrovascular Medicine, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - S Yoshimura
- Department of Neurosurgery, Gifu University, Gifu, Japan
| | - H Hoshino
- Department of Neurology, Tokyo Saiseikai Central Hospital, Tokyo, Japan
| | - Y Uesaka
- Department of Neurology, Toranomon Hospital, Tokyo, Japan
| | - T Nakashima
- Department of Neurology, National Hospital Organization Kagoshima Medical Center, Kagoshima, Japan
| | - Y Itoh
- Department of Neurology, Keio University School of Medicine, Tokyo, Japan
| | - T Ueda
- Department of Strokology, St. Marianna University, School of Medicine, Toyoko Hospital, Kawasaki, Japan
| | - T Nishi
- Department of Neurosurgery, Saiseikai Kumamoto Hospital, Kumamoto, Japan
| | - J Gotoh
- Department of Neurology, Saiseikai Yokohamashi Tobu Hospital, Yokohama, Japan
| | - K Nagatsuka
- Department of Neurology, National Cerebral and Cardiovascular Center, 5-7-1 Fujishiro-dai, Suita 565-8565, Japan
| | - S Arihiro
- Division of Stroke Care Unit, National Cerebral and Cardiovascular Center, 5-7-1 Fujishiro-dai, Suita 565-8565, Japan
| | - T Yamaguchi
- National Cardiovascular Center, Osaka, Japan
| | - K Minematsu
- Department of Cerebrovascular Medicine, National Cerebral and Cardiovascular Center, 5-7-1 Fujishiro-dai, Suita 565-8565, Japan
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Toyoda K, Oba H, Kutomi K, Furui S, Oohara A, Mori H, Sakurai K, Tsuchiya K, Kan S, Numaguchi Y. MR imaging of IgG4-related disease in the head and neck and brain. AJNR Am J Neuroradiol 2012; 33:2136-9. [PMID: 22700747 DOI: 10.3174/ajnr.a3147] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
SUMMARY IgG4-related disease is characterized by histologic fibrosis with IgG4-positive plasma cell infiltration. Our study evaluated MR imaging features of IgG4-related disease in the head and neck and brain. Images from 15 patients were retrospectively evaluated for the location, signal intensity, and enhancement patterns of lesions. Lacrimal gland enlargement was observed in 8 cases. Other lesions included orbital pseudotumor in 5, pituitary enlargement in 5, and cranial nerve enlargement in 7; the infraorbital nerve was involved in 4. All lesions were hypointense on T2-weighted images, which is typical for IgG4-related lesions. Multiple sites were involved in the head and neck and brain in 11 patients. The diagnosis of IgG4-related disease should be considered in a patient presenting with T2 hypointense lacrimal gland, pituitary, or cranial nerve enlargement, or a T2 hypointense orbital mass, especially if multiple sites in the head and neck are involved in the presence of elevated serum IgG4.
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Affiliation(s)
- K Toyoda
- Department of Radiology, Teikyo University School of Medicine, Tokyo, Japan.
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Takasawa K, Takaeda C, Higuchi M, Maeda T, Tomosugi N, Ueda N, Sasaki Y, Ikezoe M, Hagiwara M, Furuhata S, Murakami M, Shimonaka Y, Yamazaki S, Hamahata S, Hamahata S, Oue M, Kuragano T, Furuta M, Yahiro M, Kida A, Otaki Y, Hasuike Y, Nonoguchi H, Nakanishi T, Sarafidis P, Rumjon A, Ackland D, Maclaughlin H, Bansal SS, Macdougall IC, Panichi V, Rosati A, Malagnino E, Giusti R, Casani A, Betti G, Conti P, Bernabini G, Bernabini G, Gabrielli C, Caiani D, Scatena A, Migliori M, Pizzarelli F, Mitsopoulos E, Tsiatsiou M, Minasidis I, Kousoula V, Intzevidou E, Passadakis P, Vargemezis V, Tsakiris D, Yahiro M, Kida A, Otaki Y, Hasuike Y, Nonoguchi H, Nakanishi T, Kuragano T, Lines SW, Carter AM, Dunn EJ, Wright MJ, Aoyagi R, Miura T, De Paola L, Lombardi G, Coppolino G, Lombardi L, Hasuike Y, Fukumoto H, Kaibe S, Tokuyama M, Kida A, Otaki Y, Kuragano T, Nonoguchi H, Hiwasa M, Miyamoto T, Ohue H, Matsumoto A, Toyoda K, Nakanishi T, Rottembourg J, Emery C, Lafuma A, Wernli J, Zakin L, Mahi L, Borzych-Duzalka D, Bilginer Y, Pape L, Ha IS, Bak M, Chua A, Rees L, Pesle S, Cano F, Urzykowska A, Emre S, Russcasso J, Ramela V, Printza N, White C, Kuzmanovska D, Andrea V, Muller-Wiefel D, Warady B, Schaefer F, Chung JH, Park MK, Kim HL, Shin BC, Fujikawa T, Kuji T, Kakimoto M, Shibata K, Satta H, Nishihara M, Kawata S, Koguchi N, Toya Y, Umemura S, David V, Michel G, Maxime H, Paul L, Sebastien K, Francois V, Kuntsevich V, Dou Y, Thijssen S, Levin NW, Kotanko P, Kim BS, Kim BS, Park WD, Song HC, Kim HG, Kim YO, Woodburn K, Fong KL, Moriya Y, Tagawa Y, Maeda T, Kanda F, Morita N, Tomosugi N, London G, London G, Zaoui P, Covic A, Dellanna F, Goldsmith D, Gesualdo L, Mann J, Combe C, Turner M, Meunzberg M, Macdonald K, Abraham I, Gesualdo L, Combe C, Covic A, Dellanna F, Goldsmith D, London G, Mann J, Zaoui P, Turner M, Meunzberg M, Macdonald K, Abraham I, Rottembourg J, Guerin A, Diaconita M, Apruzzese R, Dou Y, Thijssen S, Kruse A, Ouellet G, Levin NW, Kotanko P, Bond C, Jensen D, Wang S, Pham E, Rubin J, Sika M, Niecestro R, Woodburn K, Fong KL, Sloneker S, Strzemienski P, Solon E, Moriya Y, Tagawa Y, Stamopoulos D, Mpakirtzi N, Grapsa E, Gogola B, Manios E, Afentakis N, Ewer J, Macdougall IC. Renal anaemia - CKD 5D. Nephrol Dial Transplant 2012. [DOI: 10.1093/ndt/gfs244] [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: 11/13/2022] Open
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Uemura M, Uno H, Umesaki A, Miyashita K, Nagatsuka K, Toyoda K, Minematsu K, Naritomi H. Clinical Features of Lateral Medullary Infarction with Ipsilateral Hemiparesis (P03.026). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p03.026] [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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Toyoda K, Furusyo N, Ihara T, Ikezaki H, Urita Y, Hayashi J. Serum pepsinogen and Helicobacter pylori infection--a Japanese population study. Eur J Clin Microbiol Infect Dis 2012; 31:2117-24. [PMID: 22354521 DOI: 10.1007/s10096-011-1543-0] [Citation(s) in RCA: 12] [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: 08/26/2011] [Accepted: 12/29/2011] [Indexed: 12/11/2022]
Abstract
The decreased ratio of serum pepsinogen (PG) I and II has good correlation with the presence of atrophic gastritis. A total of 1,540 residents aged 30-89 years were enrolled into this study to investigate which serum PG level of residents with Helicobacter pylori infection would represent an adjunct to the diagnosis and progression of atrophic gastritis. All participants received esophagogastroduodenoscopy. Serum antibody to H. pylori (anti-H. pylori) was measured by an enzyme-linked immunosorbent assay (ELISA). Serological atrophic gastritis was defined as serum PG I isozyme level ≤70 ng/ml and a PG I/II ratio of ≤3.0. Of the 1,540 participants, 923 (59.9%) were positive for anti-H. pylori. Serological atrophic gastritis was found significantly more often in anti-H. pylori-positive participants (40.8%) than in anti-H. pylori-negative participants (7.9%) (p ≤ 0.0001). The endoscopic findings of anti-H. pylori-positive participants with serological atrophic gastritis were significantly more frequent by 4.06 times for atrophic gastritis (p ≤ 0.0001) than anti-H. pylori-negative participants without serological atrophic gastritis. Eight anti-H. pylori-positive participants were diagnosed with gastric cancer, but no cancer was found in anti-H. pylori-negative participants without serological atrophic gastritis. Serum PG testing is clinically useful for the prediction of gastric lesions in H. pylori-infected persons.
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Affiliation(s)
- K Toyoda
- Department of Environmental Medicine and Infectious Diseases, Kyushu University, Fukuoka, Japan
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Kondo K, Yamada N, Suzuki Y, Toyoda K, Hashimoto T, Takahashi A, Kobayashi A, Shoda T, Kuno H, Sugai S. Enhancement of acetaminophen-induced chronic hepatotoxicity in restricted fed rats: a nonclinical approach to acetaminophen-induced chronic hepatotoxicity in susceptible patients. J Toxicol Sci 2012; 37:911-29. [DOI: 10.2131/jts.37.911] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- Kazuma Kondo
- Toxicology Research Lab., Central Pharmaceutical Research Institute, JAPAN TOBACCO INC
| | - Naohito Yamada
- Toxicology Research Lab., Central Pharmaceutical Research Institute, JAPAN TOBACCO INC
| | - Yusuke Suzuki
- Toxicology Research Lab., Central Pharmaceutical Research Institute, JAPAN TOBACCO INC
| | - Kaoru Toyoda
- Toxicology Research Lab., Central Pharmaceutical Research Institute, JAPAN TOBACCO INC
| | - Tatsuji Hashimoto
- Toxicology Research Lab., Central Pharmaceutical Research Institute, JAPAN TOBACCO INC
| | - Akemi Takahashi
- Toxicology Research Lab., Central Pharmaceutical Research Institute, JAPAN TOBACCO INC
| | - Akio Kobayashi
- Toxicology Research Lab., Central Pharmaceutical Research Institute, JAPAN TOBACCO INC
| | - Toshiyuki Shoda
- Toxicology Research Lab., Central Pharmaceutical Research Institute, JAPAN TOBACCO INC
| | - Hideyuki Kuno
- Toxicology Research Lab., Central Pharmaceutical Research Institute, JAPAN TOBACCO INC
| | - Shoichiro Sugai
- Toxicology Research Lab., Central Pharmaceutical Research Institute, JAPAN TOBACCO INC
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Furusyo N, Murata M, Ogawa E, Toyoda K, Ihara T, Ikezaki H, Hayashi T, Koga T, Kainuma M, Hayashi J. Ribavirin concentration in the later stages of 48 week pegylated interferon- 2b plus ribavirin therapy for chronic hepatitis C is useful for predicting virological response. J Antimicrob Chemother 2011; 66:1127-1139. [DOI: 10.1093/jac/dkr034] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023] Open
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Okoshi M, Murahara M, Toyoda K. Selective Surface Modification of a Fluorocarbon Resin Into Hydrophilic Material Using an Excimer Laser. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-201-451] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AbstractSelective surface modification of fluorocarbon resin has been demonstrated by using an ArF excimer laser beam and an ammonia complex which was made from NH3 and B2H6 gases. The fluorocarbon resin was set in the atmosphere of NH3 gas. NH3 molecules which were adsorbed on the surface reacted quickly with the B2H6 molecules, and an ammonia complex was produced. As a result, the complex was adsorbed on the surface. The resin surface was selectively irradiated by ArF laser beam. The complex and C-F bonds of this resin were excited by the laser beam, and the surface was selectively modified to be hydrophilic property. The modified samples were evaluated by XPS analysis, measuring the contact angles of the water and the SEM image on the surface.
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Abstract
AbstractA silicon carbide-like layer was produced in the near-surface region of teflon by irradiating with an ArF excimer laser in a SiH4 and B(CH3)3 mixed gas atmosphere. The pure photochemical reaction was employed in the modification process, and the defluorination of the surface was performed with boron atoms which were photodissociated from B(CH3)3. The CH3 radicals, also photodissociated, induced the dehydrogenation of SiH4 gas; which followed the production of SiHx radicals. The SiHx radicals and CH3 radicals which could not have induced the dehydrogenation of SiH4 were substituted for fluorine atoms of the surface. As a result, the surface was photomodified into silicon carbide. Chemical composition of the photomodified surface was inspected by the XPS and the ATR-FT-IR spectra measurement, and the bonding of the Si-CH3 radicals which traded off the reduction of the fluorine atoms was comfirmed. The Si/C composition ratio of the photomodified surface was 0.7.
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Okoshi M, Kashiura H, Miyokawa T, Toyoda K, Murahara M. ArF Laser Induced Photochemical Substitution of OH Radicals into Teflon Surface Using Al(OH)3 Solution. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-279-737] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
ABSTRACTOH radicals were photochemically substituted for fluorine atoms in the teflon surface by using an ArF excimer laser light and an Al(OH)3 solution. This method is simple and can be performed in air atmosphere. In the process, the teflon film was placed on the Al(OH)3 which were dissolved in NaOH water solution; the ArF excimer laser light was irradiated the sample surface and the solution. By irradiating the laser, the surface was defluorinated by the aluminium atoms photodissociated from the Al(OH)3 solution, and the dangling bonds which were formed in the defluorinated surface combined with the OH radicals also photodissociated. The hydrophilic property of the photomodified surface was evaluated by the measurement of the contact angle with water. The defluorination and the OH radicals substitution were inspected by the XPS analysis and the ATR-FTIR measurement.
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Abstract
ABSTRACTThe fluorocarbon resin (Teflon) which is a very stable material chemically, has chemical resistance. Because of this property, it has no affinity for oil or water. Therefore, we have tried selective area modification of the resin surface b-y using an excimer laser.Fluorocarbon resin is a polymer of C-F bonds. In our experiment, the resin surface was irradiated by an ArF excimer laser, of which the photon energy is higher than that of the C-F bond, to excite the strong C-F bonds. B radicals, the best combination for F atoms, were formed simultaneously. Consequently, F atoms of C-F bonds were pulled out by B radicals. B(CH3 )3 with absorption in agreement with the wavelength of the ArF laser were used as raw materials of the B radicals. By irradiating the gas by the ArF laser beam, the photodecomposed B radicals functioned by pulling out F atoms, and the other methyl radicals ( -CH3 ) substituted for F atoms. As the result, this resin surface turned out to be oleophilic exclusively on the areas exposed to the light.
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