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Ito R, Tsujihata Y, Matsuda-Nagasumi K, Mori I, Negoro N, Takeuchi K. TAK-875, a GPR40/FFAR1 agonist, in combination with metformin prevents progression of diabetes and β-cell dysfunction in Zucker diabetic fatty rats. Br J Pharmacol 2014; 170:568-80. [PMID: 23848179 DOI: 10.1111/bph.12297] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2012] [Revised: 06/20/2013] [Accepted: 07/03/2013] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND AND PURPOSE TAK-875, a selective GPCR40/free fatty acid receptor 1 agonist, improves glycaemic control by increasing glucose-dependent insulin secretion. Metformin is a first-line drug for treatment of type 2 diabetes that improves peripheral insulin resistance. Based on complementary mechanism of action, combining these agents is expected to enhance glycaemic control. Here, we evaluated the chronic effects of TAK-875 monotherapy and combination therapy with metformin in diabetic rats. EXPERIMENTAL APPROACH Long-term effects on glycaemic control and β-cell function were evaluated using Zucker diabetic fatty (ZDF) rats, which develop diabetes with hyperlipidaemia and progressive β-cell dysfunction. KEY RESULTS Single doses of TAK-875 (3-10 mg·kg(-1) ) and metformin (50-150 mg·kg(-1) ) significantly improved both postprandial and fasting hyperglycaemia, and additive improvements were observed in their combination. Six-week treatment with TAK-875 (10 mg·kg(-1) , b.i.d.) significantly decreased glycosylated Hb (GHb) by 1.7%, and the effect was additively enhanced by combination with metformin (50 mg·kg(-1) , q.d.; GHb: -2.4%). This improvement in glycaemic control in the combination group was accompanied by significant 3.2-fold increase in fasting plasma insulin levels. Pancreatic insulin content was maintained at a level comparable to that in normal rats by combination treatment (vehicle: 26, combination: 67.1; normal lean: 69.1 ng·mg(-1) pancreas) without affecting pancreatic glucagon content. Immunohistochemical analyses revealed normal morphology, enhanced pancreas duodenum homeobox-1 expression and increased PCNA-positive cells in islets of the combination group. CONCLUSION AND IMPLICATIONS Our results indicate that combination therapy with TAK-875 and metformin could be a valuable strategy for glycaemic control and β-cell preservation in type 2 diabetes.
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Yamaguchi S, Mase T, Takeuchi K. Secretion of Mono- and Diacylglycerol Lipase fromPenicillium camembertiiU-150 bySaccharomyces cerevisiaeand Site-directed Mutagenesis of the Putative Catalytic Sites of the Lipase. Biosci Biotechnol Biochem 2014; 56:315-9. [PMID: 1368304 DOI: 10.1271/bbb.56.315] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Yeast cells carrying intronless mono- and diacylglycerol lipase (MDGL) genes, constructed by recombination of the genomic gene and cDNA, secreted MDGL into the culture supernatant. Most of the yeast MDGL were extensively glycosylated while they had a similar glyceride specificity to that of native MDGL. Site-directed mutagenesis was used to directly confirm the involvements in enzyme activity of the presumptive amino acid residues to form the catalytic center of MDGL. These residues were conserved in the primary structure alignment of a lipase family from filamentous fungi. Mutant lipase proteins in which Ser83, Ser145, or His259 was replaced with glycine were secreted by yeast transformants as inactive proteins. Mutant proteins replacing Asp199 with glycine or asparagine were not detected in the culture supernatant. Replacing other two highly conserved aspartic acids (at positions 232 and 243) with glycine did not render the enzyme inactive. These results indicate that Ser83, Ser145, and His259 in MDGL, are essential to enzyme activity. Asp199 is also likely to be involved.
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Yonemoto Y, Okamura K, Sakurai T, Ayabe K, Takeuchi K, Kaneko T, Matsushita M, Iso T, Okura C, Inoue H, Otsuka K, Takagishi K. THU0191 Comparison of Golimumab 50 Mg/4 Weeks plus Methotrexate with Golimumab 100 Mg/4 Weeks Monotherapy in Patients with Rheumatoid Arthritis: Results from the Japanese GRN Multicenter Cohort Study. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.4102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Takanami I, Takeuchi K. Favorable results of early diagnosis by cervicothoracic computed tomography scans for descending necrotizing mediastinitis. ACTA ACUST UNITED AC 2014; 49:220-3. [PMID: 11355254 DOI: 10.1007/bf02913519] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
OBJECTIVES We studied results of early diagnosis by cervicothoracic computed tomography and early aggressive surgery for descending necrotizing mediastinitis. METHODS Between 1990 and 1999, 5 patients with descending necrotizing mediastinitis were surgically treated in our institute. Computed tomography scans confirmed mediastinitis in all cases, even though chest x-ray films demonstrated a widening mediastial shadow in only 2. Soon after surgical drainage of the deep neck infection and diagnosis of descending necrotizing mediastinitis, all patients underwent surgical mediastinal drainage. Mediastinitis was drained by thoracotomy in 1, managed thoracoscopically in 1 and cervicomediastinally drained in 3. RESULTS The outcome was favorable in all patients. CONCLUSIONS Early diagnosis by cervicothoracic computed tomography and early aggressive surgery for descending necrotizing mediastinitis are essential to favorable outcome.
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Takeuchi K, Aida J, Ito K, Furuta M, Yamashita Y, Osaka K. Nutritional status and dysphagia risk among community-dwelling frail older adults. J Nutr Health Aging 2014; 18:352-7. [PMID: 24676314 DOI: 10.1007/s12603-014-0025-3] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
OBJECTIVES Although the presence of dysphagia is a key determinant of nutritional status among older adults, few studies have focused on the association between malnutrition and dysphagia risk in community-dwelling frail older adults. This study estimated the prevalence of malnutrition and quantified the association between malnutrition and dysphagia risk among community-dwelling older Japanese adults requiring long-term care. DESIGN Cross-sectional study. SETTING This study was conducted with the cooperation of the Japan Dental Association and local dental associations in all 47 prefectures from January to February 2012. PARTICIPANTS Individuals aged ≥65 years capable of oral nutrient intake who were living at home and receiving home dental care and treatment. MEASUREMENTS Individual demographic characteristics and factors associated with health loss-related functional decline were obtained through interviews by home-visit dentists and self-administered questionnaires. Nutritional status and dysphagia risk were evaluated using the Mini Nutritional Assessment Short Form and the Dysphagia Risk Assessment for the Community-dwelling Elderly. RESULTS Among 874 respondents (345 men and 529 women), 24.6% were malnourished, 67.4% were at risk of malnutrition, and 8.0% were well nourished. Dysphagia risk was related to an increased likelihood of malnutrition at an old age, even after adjusting for covariates (PR = 1.30, 95% CI = 1.01-1.67). CONCLUSION Malnutrition is highly prevalent among community-dwelling frail older adults, and dysphagia risk is independently associated with malnutrition. Dysphagia may be an important predictor of malnutrition progression in aged populations.
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Takeuchi K. Gastric cytoprotection by prostaglandin E₂ and prostacyclin: relationship to EP1 and IP receptors. JOURNAL OF PHYSIOLOGY AND PHARMACOLOGY : AN OFFICIAL JOURNAL OF THE POLISH PHYSIOLOGICAL SOCIETY 2014; 65:3-14. [PMID: 24622825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 06/20/2013] [Accepted: 01/06/2014] [Indexed: 06/03/2023]
Abstract
Endogenous prostaglandins (PGs) play a role in modulating mucosal integrity and have various functions in the stomach, with E type PGs being the most effective. PGE₂ provides gastric cytoprotection against damage induced in rats by HCl/ethanol, indomethacin, or acid back-diffusion after barrier disruption. These effects were mimicked by EP1 agonists and/or attenuated by an EP1 antagonist, and disappeared in EP1 (-/-) mice. Furthermore, the adaptive cytoprotection induced by a mild irritant was attenuated by the EP1 antagonist and indomethacin. Capsaicin also provides gastric protection against HCl/ethanol, and its action was mitigated by indomethacin and sensory deafferentation, but not by the EP1 antagonist. Similar results were obtained using mice lacking various EP receptor subtypes; i.e., PGE₂ failed to provide both direct and adaptive cytoprotection in EP1 (-/-) mice, while capsaicin-induced protection was observed in EP1 (-/-) mice, but disappeared in IP (-/-) mice. The effects of PGE₂ on various gastric functions are mediated by different EP receptor subtypes; inhibition of acid secretion (EP3) and motility (EP1), stimulation of mucus secretion (EP4) and HCO₃⁻ secretion (EP1), and an increase in mucosal blood flow (EP2/EP4). In conclusion, the presence of EP1 receptors is essential to the protective action of PGE₂, either generated endogenously or administered exogenously, against HCl/ ethanol or indomethacin, and this action is functionally associated with the inhibition of gastric motility. Endogenous PGs also contribute to maintaining mucosal integrity after barrier disruption through an increase in mucosal blood flow, which occurs via sensory neurons influenced by activation of the EP1 receptor.
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Fujinaga H, Takeuchi K, Kaneda K, Takasaki Y, Hashimoto H. Analysis of autoantibodies to cell cycle-associated antigens. Mod Rheumatol 2014; 11:222-9. [DOI: 10.3109/s101650170008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Shinozaki T, Takagishi K, Tsutsumi S, Yanagawa T, Takeuchi K, Watanabe H, Fukuda T. Effects of FR167653, a dual inhibitor of interleukin-1 and tumor necrosis factor, on adjuvant arthritis in rats. Mod Rheumatol 2014; 11:300-3. [DOI: 10.3109/s10165-001-8059-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Ouchi A, Yokoyama M, Takeuchi K, Nitta H, Ueda K, Nishimura N, Tsuyama N, Terui Y, Hatake K. GDP Chemotherapy for Relapsed/Refractory Lymphomas is Effective and Safe. Ann Oncol 2013. [DOI: 10.1093/annonc/mdt460.113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Nishimura N, Terui Y, Ouchi A, Ueda K, Nitta H, Yokoyama M, Tsuyama N, Takeuchi K, Hatake K. Incidence of Deep Vein Thrombosis (DVE) in Myeloma Patients Treated with Lenalidomide/ Dexamethasone with Prophylaxis. Ann Oncol 2013. [DOI: 10.1093/annonc/mdt459.96] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Takeuchi K, Mashimo Y, Shimojo N, Arima T, Inoue Y, Morita Y, Sato K, Suzuki S, Nishimuta T, Watanabe H, Hoshioka A, Tomiita M, Yamaide A, Watanabe M, Okamoto Y, Kohno Y, Hata A, Suzuki Y. Functional variants in the thromboxane A2 receptor gene are associated with lung function in childhood-onset asthma. Clin Exp Allergy 2013; 43:413-24. [PMID: 23517037 DOI: 10.1111/cea.12058] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2011] [Revised: 09/24/2012] [Accepted: 10/25/2012] [Indexed: 12/14/2022]
Abstract
BACKGROUND The thromboxane A2 receptor (TBXA2R) gene is associated with asthma, but no functional genetic variations are known to associate with the disease or its related phenotypes. OBJECTIVE To investigate the association of TBXA2R polymorphisms with asthma susceptibility and related phenotypes and to identify functionally relevant polymorphisms. METHODS We performed comprehensive sequencing of the TBXA2R gene in 48 Japanese control subjects and found a set of variants (SNP1 G>T rs2238634, SNP2 T>G rs2238633, SNP3 C>T rs2238632 and SNP4 G>A rs2238631) in intron 1 in linkage disequilibrium with c.795 T>C rs1131882, which was previously reported to be associated with asthma and related phenotypes. To investigate the effect of four common haplotypes (H1, H2, H3 and H4) on transcriptional activity, we performed a luciferase assay in primary bronchial smooth muscle cells (BSMCs) and human airway epithelial cells (BEAS-2B). We also studied the haplotype association with lung function, TBXA2R mRNA levels, and eosinophil fraction/count in peripheral blood in childhood-onset asthma patients and/or controls. RESULTS H2 and H4, containing minor alleles of SNP2 and SNP3, had significantly higher transcriptional activities than H1 consisting of major alleles (P < 0.001 in BSMCs and BEAS-2B). Homozygotes for redefined haplotype h2 corresponding to minor alleles of SNP2 and SNP3 were associated with lower lung function in childhood-onset asthma patients compared to other zygotes (baseline Forced expiratory volume in one second (FEV1)/ Forced vital capacity (FVC) and Forced expiratory flow between 25% and 75% of the FVC (%FEF(25-75%)): P = 0.00201 and 0.0128, respectively, and post-bronchodilator FEV1/FVC and %FEF(25-75%): P = 0.00224 and 0.0393 respectively). Haplotype h2 was also associated with higher mRNA levels in control peripheral blood cells and higher blood eosinophil fractions and counts in female controls. CONCLUSIONS AND CLINICAL RELEVANCE Genetic variants were identified in the TBXA2R gene that influenced transcriptional activity and were associated with asthma-related phenotypes. Thromboxane pathways may therefore play important roles in airway inflammation and remodelling in asthma patients.
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Takeuchi K, Kurematsu T, Kishita H, Nagai Y, Fukumoto Y, Homan Y. Utilization of hysteroscopy in frozen-thawed embryo transfer (FET) cycles. Fertil Steril 2013. [DOI: 10.1016/j.fertnstert.2013.07.1057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Yasuda M, Kato S, Yamanaka N, Iimori M, Matsumoto K, Utsumi D, Kitahara Y, Amagase K, Horie S, Takeuchi K. 5-HT₃ receptor antagonists ameliorate 5-fluorouracil-induced intestinal mucositis by suppression of apoptosis in murine intestinal crypt cells. Br J Pharmacol 2013; 168:1388-400. [PMID: 23072534 DOI: 10.1111/bph.12019] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2012] [Revised: 09/23/2012] [Accepted: 10/02/2012] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND AND PURPOSE Chemotherapeutic agents, including 5-fluorouracil (5-FU), frequently cause intestinal mucositis resulting in severe diarrhoea and morphological mucosal damage. 5-HT₃ receptor antagonists are clinically effective in the treatment of nausea and emesis during cancer chemotherapy. Therefore we here have examined the effects of 5-HT₃ receptor antagonists on 5-FU-induced intestinal mucositis in mice. EXPERIMENTAL APPROACH Intestinal mucositis was induced in male C57BL/6 mice by daily administration of 5-FU (50 mg·kg⁻¹) for 5 days. Effects of 5-HT₃ receptor antagonists, ramosetron (0.01-0.1 mg·kg⁻¹) and ondansetron (5 mg·kg⁻¹), on the accompanying histology, cytokine production and apoptosis were assessed. KEY RESULTS Continuous administration of 5-FU to mice caused severe intestinal mucositis, which was histologically characterized by the shortening of villi and destruction of intestinal crypts, accompanied by body weight loss and diarrhoea. Daily ramosetron administration dose-dependently reduced the severity of intestinal mucositis, body weight loss and diarrhoea. Similar beneficial effects were observed with ondansetron. The number of apoptotic, caspase-3- and caspase-8-activated cells increased 24 h after the first 5-FU administration, and these responses were reduced by ramosetron. The up-regulation of TNF-α, IL-1β and IL-6 following 5-FU treatment was also attenuated by ramosetron. CONCLUSIONS AND IMPLICATIONS 5-HT₃ receptor antagonists ameliorated 5-FU-induced intestinal mucositis in mice, and this action could result from suppression of apoptotic responses in the intestinal crypt cells via inhibition of cytokine expression. Thus, 5-HT₃ receptor antagonists may be useful for preventing not only nausea and emesis but also intestinal mucositis during 5-FU chemotherapy.
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Hayashi S, Kurata N, Kitahirachi E, Nishimura Y, Amagase K, Yano T, Takeuchi K. Cinacalcet, a calcimimetic, prevents nonsteroidal antiinflammatory drug-induced small intestinal damage in rats. JOURNAL OF PHYSIOLOGY AND PHARMACOLOGY : AN OFFICIAL JOURNAL OF THE POLISH PHYSIOLOGICAL SOCIETY 2013; 64:453-463. [PMID: 24101391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 01/17/2013] [Accepted: 08/26/2013] [Indexed: 06/02/2023]
Abstract
The extracellular calcium-sensing receptor (CaSR), a G protein-coupled cell receptor cloned from bovine parathyroid, has been demonstrated to play a regulatory role in various functions of the gastrointestinal tract. In the present study, we examined the effect of cinacalcet, a drug that acts as a calcimimetic through the allosteric activation of CaSR, on the loxoprofen-induced small intestinal lesions and investigated the mechanisms involved in the protective action. Male Sprague-Dawley rats were used without fasting. The animals were administered loxoprofen p.o. and euthanized 24 hours later and the intestinal mucosa was examined for lesions. Cinacalcet was given p.o. twice, 30 min before and 6 h after loxoprofen. Loxoprofen caused hemorrhagic lesions in the small intestine, accompanied by the upregulation of enterobacterial invasion, myeloperoxidase (MPO) activity and inducible nitric oxide synthase (iNOS)/tumor necrosis factor α (TNF-α) expression as well as the downregulation of Muc2 expression. Prior administration of cinacalcet dose-dependently and significantly reduced the severity of these lesions in response to loxoprofen, with concomitant suppression of the changes in bacterial invasion, iNOS/TNF-α as well as Muc2 expression, and myeloperoxidase activity. Cinacalcet also significantly reversed a decrease in mucus secretion and fluid secretion in the small intestine caused by loxoprofen, but had no effect on the intestinal hypermotility or prostaglandin E₂ deficiency caused by loxoprofen. These results suggest that cinacalcet protects the small intestine against loxoprofen-induced damage, and this effect may be functionally associated with an increase in fluid secretion and a reversal of downregulation of Muc2 expression caused by loxoprofen, resulting in suppression of bacterial invasion and iNOS/TNF-α expression, the major pathogenic events in nonsteroidal antiinflammatory drugs-induced small intestinal ulceration.
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Tanaka S, Uchida S, Miyakawa S, Inui N, Takeuchi K, Watanabe H, Namiki N. PP176—Comparison of Inhibitory Duration of Grapefruit Juice on Organic Anion-Transporting Polypeptide and CYP3A4. Clin Ther 2013. [DOI: 10.1016/j.clinthera.2013.07.212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Okamura K, Yonemoto Y, Kaneko T, Kobayashi T, Takeuchi K, Takagishi K. AB0548 The assessment of anti-IL-6 treatments in patients with rheumatoid arthritis using FDG-PET/CT. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Yonemoto Y, Okamura K, Takeuchi K, Matsushita M, Kaneko T, Kobayashi T, Aramaki T, Takagishi K. THU0094 Direct comparison of four biological agents in bio-naïve rheumatoid arthritis patients. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.2059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Yonemoto Y, Okamura K, Takeuchi K, Matsushita M, Kaneko T, Kobayashi T, Aramaki T, Takagishi K. AB0340 Is the concomitant use of methotrexate with tocilizumab necessary in bio-naive rheumatoid arthritis patients? Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.2662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Yonemoto Y, Okamura K, Kaneko T, Kobayashi T, Takeuchi K, Takagishi K. SAT0419 Comparison of 18FDG-PET and MRI of the shoulder in patients with rheumatoid arthritis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.3365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Okamura K, Yonemoto Y, Kaneko T, Kobayashi T, Takeuchi K, Takagishi K. AB1277 The assessment of anti-TNF treatments in patients with rheumatoid arthritis using FDG-PET/CT. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.1273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Ayabe K, Takeuchi K, Matsushita M, Tamura Y, Sakurai T, Inoue H. AB0318 Abatacept (abt) equivalent to anti-tumor necrosis factor a (tnfa) in terms of joint destruction inhibition: multicenter study of 107 patients treated for 52 weeks. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.2640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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El Minshawy O, Ghabrah T, Hamza A, Fadl A, Adam M, El Bassuoni E, Saran R, Tilea A, Sands R, Kiser M, Han SW, Stack A, Finkelstein F, Eisele G, Kotanko P, Levin N, Gillespie B, Krane V, Bhuvanakrishna T, Burnapp L, Hilton R, Sibley-Allen C, Blake G, Goldsmith D, Taylor-Stokes G, Ozbay AB, Sayers J, Marx SE, Yanai M, Okada K, Takeuchi K, Matsuyama K, Nitta K, Takahashi S, Delanaye P, Cavalier E, Moranne O, Lutteri L, Bruyere O, Krzesinski JM, Silverwood RJ, Richards M, Pierce M, Hardy R, Sattar N, Ferro C, Savage C, Kuh D, Nitsch D, Shin JH, Kim SH, Yu SH, Oberdhan D, Krasa HB, Cheng R, Hays RD, Chapman A, Perrone R, Cole JC, Tilea A, Hedgeman E, Steffick D, Rein-Weston A, Banerjee T, Powe N, Rios-Burrows N, Williams D, Saran R, Nagasawa Y, Yamamoto R, Shinzawa M, Hasuike Y, Kuragano T, Rakugi H, Isaka Y, Nakanishi T, Iseki K, Yamagata K, Tsuruya K, Yoshida H, Fujimoto S, Asahi K, Watanabe T, Moriyama T, Warren S, Rutherford P, Van Den Bosch J, Kusztal M, Trafidlo E, Madziarska K, Augustyniak-Bartosik H, Golebiowski T, Krajewska M, Rymaszewska J, Weyde W, Klinger M, Sato Y, Fujimoto S, Konta T, Iseki K, Moriyama T, Yamagata K, Tsuruya K, Yoshida H, Asahi K, Kurahashi I, Ohashi Y, Watanabe T, Elsayed I, Khwaja A, Siddall S, Mortimer F, Ando M, Hara M, Tsuchiya K, Nitta K, Hiwatashi A, Hagiwara M, Tsuruoka S, Usui J, Nagai K, Kai H, Morito N, Saito C, Yoh K, Hosojima M, Saito A, Yamagata K, Stack AG, Chernenko T, Abdalla AA, Saran R, Nguyen HT, Hedgeman E, Hannigan A, Casserly LF, Abd ElHafeez S, Gad Z, Sallam S, Tripepi G, Zoccali C, ElWakil H, Awad N, Sestigiani E, Tedesco D, Mandreoli M, Ubaldi G, Olmeda F, Monti M, Rucci P, Gibertoni D, Santoro A, Zaza G, Bernich P, Lupo A, Rogacev KS, Seiler S, Zawada AM, Fliser D, Heine GH, Douros A, Schaeffner E, Jakob O, Kreutz R, Ebert N, Gerasimovska Kitanovska B, Bogdanovska S, Severova Andreevska G, Gerasimovska V, Sikole A, Rakov V, Schiepe F, Rutkowski B, Zdrojewski T, Bandosz P, Zdrojewski L, Rutkowski M, Gaciong Z, Solnica B, Jedrzejczyk T, Krol E, Wyrzykowski B, Nacak H, van Diepen M, de Goeij MCM, Dekker FW, Suzuki K, Konta T, Kamei K, Sato H, Kudo K, Nagasawa A, Ichikawa K, Kubota I, Clavero R, Vasquez N, Tapia B, Aldunate T, Heleniak Z, Cieplinska M, Pryczkowska M, Szychlinski T, Bartosinska E, Wiatr H, Kotlowska H, Tylicki L, Rutkowski B, So B, Methven S, Hair MD, Jardine AG, MacGregor MS, Jankowski V, Schulz A, Zidek W, Jankowski J, Holmar J, Fridolin I, Uhlin F, Luman M, Fernstrom A, Rodriguez I, Ortega O, Hinostroza J, Cobo G, Gallar P, Mon C, Herrero JC, Ortiz M, Di Giogia C, Oliet A, Vigil A, Premuzic V, Vrdoljak A, Fucek M, Karanovic S, Vukovic-Lela I, Kos J, Fistrek M, Dika Z, Cvitkovic A, Juric D, Laganovic M, Rogic D, Katalinic L, Jelakovic B, Vrdoljak A, Fucek M, Premuzic V, Karanovic S, Vukovic Lela I, Kos J, Fistrek M, Cvitkovic A, Jelakovic B, Deger SM, Onec K, Derici UB, Guz G, Ozturk MA, Sindel S, Arinsoy T, Hojs N, Bevc S, Hojs R, Ekart R, Koycheva R, Cholakov V, Penev M, Andreev J, Iliev R, Macia M, Jarque A, del Castillo N, Mendez ML, Martin JA, Tevar E, Bermudez C, NasrAllah MM, Osman N, Osanlou O, Greer AB, Morgan H, Archer T, Ryan N, Khalil A, Ahmed S, Melemadathil S, Ashok AV, El-Wakil HS, Asaad SH, Nawar MM, Adam AG, Abdel-Gawad MM. Epidemiology - renal outcomes. Nephrol Dial Transplant 2013; 28:i140-i154. [DOI: 10.1093/ndt/gft109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023] Open
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Kanlaya R, Sintiprungrat K, Thongboonkerd V, Torremade N, Bindels R, Hoenderop J, Fernandez E, Dusso A, Valdivielso JM, Krueger T, Boor P, Schafer C, Westenfeld R, Brandenburg V, Schlieper G, Jahnen-Dechent W, Ketteler M, Jee W, Li X, Richards B, Floege J, Goncalves JG, Canale D, de Braganca AC, Shimizu MHM, Moyses RMA, Andrade L, Seguro AC, Volpini RA, Romoli S, Migliorini A, Anders HJ, Eskova O, Neprintseva N, Tchebotareva N, Bobkova I, Kozlovskaya L, Simic I, Tabatabaeifar M, Wlodkowski T, Denc H, Mollet G, Antignac C, Schaefer F, Ekaterina IA, Giardino L, Rastaldi MP, Van den Heuvel L, Levtchenko E, Okina C, Okamoto T, Kamata M, Murano J, Kobayashi K, Takeuchi K, Kamata F, Sakai T, Naito S, Aoyama T, Sano T, Takeuchi Y, Kamata K, Thomasova D, Bruns HA, Liapis H, Anders HJ, Iwashita T, Hasegawa H, Takayanagi K, Shimizu T, Asakura J, Okazaki S, Kogure Y, Hatano M, Hara H, Inamura M, Iwanaga M, Mitani T, Mitarai T, Savin VJ, Sharma M, Wei C, Reiser J, McCarthy ET, Sharma R, Gauchat JF, Eneman B, Freson K, Van den Heuvel L, Van Geet C, Levtchenko E, Choi DE, Jeong JY, Chang YK, Na KR, Lee KW, Shin YT, Ni HF, Chen JF, Zhang MH, Pan MM, Liu BC, Lee KW, Jeong JY, Choi DE, Chang YK, Kim SS, Na KR, Shin YT, Suzuki T, Iyoda M, Matsumoto K, Shindo-Hirai Y, Kuno Y, Wada Y, Yamamoto Y, Shibata T, Akizawa T, Munoz-Felix JM, Lopez-Novoa JM, Martinez-Salgado C, Ehling J, Babickova J, Gremse F, Kiessling F, Floege J, Lammers T, Boor P, Lech M, Gunthner R, Lorenz G, Ryu M, Grobmayr R, Susanti H, Kobayashi KS, Flavell RA, Anders HJ, Rayego-Mateos S, Morgado J, Sanz AB, Eguchi S, Pato J, Keri G, Egido J, Ortiz A, Ruiz-Ortega M, Leduc M, Geerts L, Grouix B, Sarra-Bournet F, Felton A, Gervais L, Abbott S, Duceppe JS, Zacharie B, Penney C, Laurin P, Gagnon L, Detsika MG, Duann P, Lianos EA, Leong KI, Chiang CK, Yang CC, Wu CT, Chen LP, Hung KY, Liu SH, Carvalho FF, Teixeira VP, Almeida WS, Schor N, Small DM, Bennett NC, Coombes J, Johnson DW, Gobe GC, Montero N, Prada A, Riera M, Orfila M, Pascual J, Rodriguez E, Barrios C, Kokeny G, Fazekas K, Rosivall L, Mozes MM, Munoz-Felix JM, Lopez-Novoa JM, Martinez-Salgado C, Hornigold N, Hughes J, Mooney A, Benardeau A, Riboulet W, Vandjour A, Jacobsen B, Apfel C, Conde-Knape K, Grouix B, Felton A, Sarra-Bournet F, Leduc M, Geerts L, Gervais L, Abbott S, Bienvenu JF, Duceppe JS, Zacharie B, Penney C, Laurin P, Gagnon L, Tanaka T, Yamaguchi J, Nangaku M, Niwa T, Bolati D, Shimizu H, Yisireyili M, Nishijima F, Brocca A, Virzi G, de Cal M, Ronco C, Priante G, Musacchio E, Valvason C, Sartori L, Piccoli A, Baggio B, Boor P, Perkuhn M, Weibrecht M, Zok S, Martin IV, Schoth F, Ostendorf T, Kuhl C, Floege J, Karabaeva A, Essaian A, Beresneva O, Parastaeva M, Kayukov I, Smirnov A, Audzeyenka I, Kasztan M, Piwkowska A, Rogacka D, Angielski S, Jankowski M, Bockmeyer CL, Kokowicz K, Agustian PA, Zell S, Wittig J, Becker JU, Nishizono R, Venkatareddy MP, Chowdhury MA, Wang SQ, Fukuda A, Wickman LT, Yang Y, Wiggins RC, Fazio MR, Donato V, Lucisano S, Cernaro V, Lupica R, Trimboli D, Montalto G, Aloisi C, Mazzeo AT, Buemi M, Gawrys O, Olszynski KH, Kuczeriszka M, Gawarecka K, Swiezewska E, Chmielewski M, Masnyk M, Rafalowska J, Kompanowska-Jezierska E, Lee WC, Chau YY, Lee LC, Chiu CH, Lee CT, Chen JB, Kim WK, Shin SJ. Experimental models of CKD. Nephrol Dial Transplant 2013. [DOI: 10.1093/ndt/gft114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Tsuruoka S, Takeuchi K, Koyama K, Noguchi T, Endo M, Tristan F, Terrones M, Matsumoto H, Saito N, Usui Y, Porter DW, Castranova V. ROS evaluation for a series of CNTs and their derivatives using an ESR method with DMPO. ACTA ACUST UNITED AC 2013; 429. [PMID: 26300949 DOI: 10.1088/1742-6596/429/1/012029] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Carbon nanotubes (CNTs) are important materials in advanced industries. It is a concern that pulmonary exposure to CNTs may induce carcinogenic responses. It has been recently reported that CNTs scavenge ROS though non-carbon fibers generate ROS. A comprehensive evaluation of ROS scavenging using various kinds of CNTs has not been demonstrated well. The present work specifically investigates ROS scavenging capabilities with a series of CNTs and their derivatives that were physically treated, and with the number of commercially available CNTs. CNT concentrations were controlled at 0.2 through 0.6 wt%. The ROS scavenging rate was measured by ESR with DMPO. Interestingly, the ROS scavenging rate was not only influenced by physical treatments, but was also dependent on individual manufacturing methods. Ratio of CNTs to DMPO/ hydrogen peroxide is a key parameter to obtain appropriate ROS quenching results for comparison of CNTs. The present results suggest that dangling bonds are not a sole factor for scavenging, and electron transfer on the CNT surface is not clearly determined to be the sole mechanism to explain ROS scavenging.
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Gasparatos A, Stromberg P, Takeuchi K. Sustainability impacts of first-generation biofuels. Anim Front 2013. [DOI: 10.2527/af.2013-0011] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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