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Iwatani Y, Hayashi H, Yamamoto H, Minamikawa H, Ichikawa M, Orikawa H, Masuda A, Tada N, Moriyama Y, Takagi N. Pathogenic role of NAMPT in the perivascular regions after ischemic stroke in mice with type 2 diabetes mellitus. Exp Neurol 2024; 371:114584. [PMID: 37884188 DOI: 10.1016/j.expneurol.2023.114584] [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] [Received: 07/13/2023] [Revised: 10/19/2023] [Accepted: 10/23/2023] [Indexed: 10/28/2023]
Abstract
Ischemic stroke in patients with abnormal glucose tolerance results in poor outcomes. Nicotinamide phosphoribosyltransferase (NAMPT), an adipocytokine, exerts neuroprotective effects. However, the pathophysiological role of NAMPT after ischemic stroke with diabetes and the relationship of NAMPT with cerebrovascular lesions are unclear. The purpose of this study was to clarify the pathophysiological role of NAMPT in cerebral ischemia with diabetes, using db/db mice as a type 2 diabetes animal model. The number of degenerating neurons increased after middle cerebral artery occlusion and reperfusion (MCAO/R) in db/db mice compared with the degenerating neurons in db/+ mice. Extracellular NAMPT (eNAMPT) levels, especially monomeric eNAMPT, increased significantly in db/db MCAO/R mice but not db/+ mice in isolated brain microvessels. The increased eNAMPT levels were associated with increased expression of inflammatory cytokine mRNA. Immunohistochemical analysis demonstrated that NAMPT colocalized with GFAP-positive cells after MCAO/R. In addition, both dimeric and monomeric eNAMPT levels increased in the conditioned medium of primary cortical astrocytes under high glucose conditions subsequent oxygen/glucose deprivation. Our findings are the first to demonstrate the ability of increased monomeric eNAMPT to induce inflammatory responses in brain microvessels, which may be located near astrocyte foot processes.
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Affiliation(s)
- Yui Iwatani
- Department of Applied Biochemistry, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Hideki Hayashi
- Department of Applied Biochemistry, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Haruna Yamamoto
- Department of Applied Biochemistry, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Hayato Minamikawa
- Department of Applied Biochemistry, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Mitsuki Ichikawa
- Department of Applied Biochemistry, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Hayato Orikawa
- Department of Applied Biochemistry, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Aya Masuda
- Department of Applied Biochemistry, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Natsumi Tada
- Department of Applied Biochemistry, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Yoshiyuki Moriyama
- Department of Applied Biochemistry, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Norio Takagi
- Department of Applied Biochemistry, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan.
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Tsujihara T, Tomeba M, Ohkubo-Sato S, Iwabuchi K, Koie R, Tada N, Tamura S, Takehara T, Suzuki T, Kawano T. One-pot reactions of bicyclic zinc enolate generated from Ni-catalyzed reductive cyclization to furnish octahydro-4,7-ethanobenzofuran-9-one derivatives. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.151148] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Horie K, Tada N, Isawa T, Matsumoto T, Honda T, Otomo T, Inoue N. P4671Transradial diagnostic and therapeutic coronary catheterization of patients with non-st-segment elevation ACS using one sheath and one sheathless guide catheter via one puncture site: the 1-1-1 strate. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p4671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Horie K, Tada N, Isawa T, Matsumoto T, Honda T, Otomo T, Inoue N. P3311A randomized comparison of frequency of radial artery occlusion and radial artery spasm associated with TRI Using 6.5-Fr Sheathless Guide Catheter vs. 6.0-Fr Glidesheath Slender. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p3311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Brand M, Stefanidis A, Morbach C, Fan YT, Elremisy DRA, Kuznetsov VA, Carrero C, Almodares Q, Abdulrahim H, Galli E, Galli E, Moreno J, Lerena Saenz P, Ikonomidis I, Galuszka OM, Bonapace S, Clerc OF, Kuznetsov VA, Tadic S, Kataoka A, Abdul Rahman E, Calin A, Antonini-Canterin F, Schwartzenberg SS, Christ M, Roeing J, Amirie S, Grett M, Beko M, Breker I, Wennemann R, Trappe HJ, Lagoudakou S, Vintzilaios K, Mokadem N, Vlachou J, Komatanou E, Korlou P, Kakkavas A, Komninos K, Kranidis A, Gelbrich G, Simon J, Cramer M, Knobeloch F, Tiffe T, Wagner M, Heuschmann PU, Stoerk S, Yang D, Wang X, Chan AK, Cheung SH, Lee AP, Salim FF, Bakhoum SW, Ashour ZA, Soldatova AM, Krinochkin DV, Enina TN, Altamirano C, Pipkin M, Constantin I, Fava A, Diaz Babio G, Masson Juarez G, San Miguel J, Vera Janavel G, Stutzbach P, Wallentin Guron C, Thurin A, Fu M, Kontogeorgos S, Thunstrom E, Johansson MC, Da Silva C, Venkateshvaran A, Nagy AI, Lund LH, Manouras A, Leclercq C, Fournet M, Bernard A, Mabo P, Samset E, Hernandez A, Donal E, Leclercq C, Fournet M, Bernard A, Mabo P, Samset E, Hernandez A, Donal E, Martinez Lugo CML, Zuniga Sedano JZD, Alexanderson EAR, Camilletti JC, Ahmed Abdelrahman M, Raslan H, Ruisanchez Villar C, Cuesta Cosgalla JM, Zarauza Navarro J, Veiga Fernandez G, Rifaie O, Omar AMS, Vlastos D, Frogoudaki A, Vrettou AR, Vlachos S, Varoudi M, Triantafyllidi H, Parissis J, Tsivgoulis G, Lekakis J, Steffens D, Friebel J, Rauch-Krohnert U, Landmesser U, Kasner M, Adamo E, Valbusa F, Ciccio' C, Rossi A, Lanzoni L, Chiampan A, Cecchetto A, Canali G, Barbieri E, Fuchs TA, Stehli J, Benz DC, Graeni C, Buechel RR, Kaufmann PA, Gaemperli O, Yaroslavskaya EI, Krinochkin DV, Kolunin GV, Gorbatenko EA, Dyachkov SM, Jung R, Ilic A, Stojsic-Milosavljevic A, Dejanovic J, Stefanovic M, Stojsic S, Sladojevic M, Watanabe Y, Kozuma K, Yamamoto M, Takagi K, Araki M, Tada N, Shirai S, Tamanaka F, Hayashida K, Ewe SH, Fadzil MA, Najme Khir R, Ismail JR, Lim CW, Chua N, Ibrahim ZO, Kasim SS, Ding ZP, Mateescu AD, Beladan CC, Rosca M, Enache R, Calin C, Cosei I, Botezatu S, Simion M, Ginghina C, Popescu BA, Di Nora C, Poli S, Vriz O, Zito C, Carerj S, Pavan D, Vaturi M, Kazum S, Monakier D, Sagie A, Kornowski R, Shapira Y. Poster Session 2The imaging examination and quality assessmentP520Benefit of early basic transthoracic echocardiography (TTE) in emergency patients performed by physicians with low to intermediate TTE experienceP521Appropriateness criteria in echocardiography. A contemporary necessity in clinical practiceP522Interobserver variability in 2d transthoracic echocardiography impact of scanning and reading on total variability results from the STAAB cohort study quality controlP5233D printing for personalised planning of catheter-based left atrial appendage occlusionP524Central obesity: an independent role or synergistic effect to metabolic syndrome on right atrial structure?P525Dynamics of left ventricular volumes and mortality in patients with early and late effect of cardiac resynchronization therapyP526Variability of thoracic aortic diameters according to gender, age and body surface area. Time to forget absolute cut-off values?P527The association of left ventricular outflow tract velocity time integral to all-cause mortality in elderly patients with heart failureP528Left ventricular myocardial performance and atrioventricular coupling in patients with primary arterial hypertensionP529Interest of a combinatory approach based on traditional left ventricular dyssynchrony parameters and cardiac work estimated by pressure-strain loop curves for the prediction of cardiac resynchronizatP530The evaluation of cardiac performance by pressure-strain loops: a useful tool for the identification of cardiac resynchronization therapy respondersP531Left ventricle cardiac function by 2D-speckle tracking echocardiography in diabetes mellitus population: sub-clinical systolic disfunction studyP532Biphasic tissue doppler mitral annular isovolumic contraction velocities are associated with left ventricular function, isovolumic relaxation, and pulmonary wedge pressure in heart failure patientsP533Abnormal left atrial volumes and strains are associated with increased arterial stiffnes in patients with cryptogenic stroke: a novel pathophysiological pathP534Detection of coronary microvascular disease using two-dimensional speckle-tracking echocardiographyP535Predictive value of a bi-dimensional transthoracic echocardiographic sign of " binary image" to identify the anomalous origin of the left circumflex coronary artery from the right coronary sinusP536Systematic review and meta-analysis of screening for coronary artery disease in asymptomatic diabetic patientsP537Noninvasive screening test for diagnosis of nonobstructive coronary artery disease using echocardiographic criteriaP538Early echocardiography after primary angioplasty, important role in predicting left ventricular remodelingP539Prognostic impact of low-flow severe aortic stenosis in Japanese patients undergoing transcatheter aortic valve implantation: the ocean-tavi registryP540Left ventricular outflow tract geometry and its impact on aortic valve area calculations in aortic stenosis using 3D transoesophageal echocardiography and 2D transthoracic echocardiographyP541Impaired left atrial myocardial deformation predicts postoperative atrial fibrillation after aortic valve replacement in patients with aortic stenosisP542Ejection fraction-velocity ratio in predicting symptoms in severe aortic stenosisP543Incremental value of transesophageal echocardiography in conjunction with transthoracic echocardiography in the assessment of aortic stenosis severity. Eur Heart J Cardiovasc Imaging 2016. [DOI: 10.1093/ehjci/jew248] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Nagasawa Y, Tachikawa Y, Yamaguchi E, Tada N, Miura T, Itoh A. Catalytic Aerobic Photo‐oxidation of a Methyl Group on a Heterocycle to Produce an Aldehyde
via
Homolytic CI Bond Cleavage caused by Irradiation with Visible Light. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201500811] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Y. Nagasawa
- Gifu Pharmaceutical University 1‐25‐4, Daigaku‐nishi, Gifu 501‐1196, Japan, Fax: (+81)‐058‐230‐8108; phone: (+81)‐058‐230‐8100
| | - Y. Tachikawa
- Gifu Pharmaceutical University 1‐25‐4, Daigaku‐nishi, Gifu 501‐1196, Japan, Fax: (+81)‐058‐230‐8108; phone: (+81)‐058‐230‐8100
| | - E. Yamaguchi
- Gifu Pharmaceutical University 1‐25‐4, Daigaku‐nishi, Gifu 501‐1196, Japan, Fax: (+81)‐058‐230‐8108; phone: (+81)‐058‐230‐8100
| | - N. Tada
- Gifu Pharmaceutical University 1‐25‐4, Daigaku‐nishi, Gifu 501‐1196, Japan, Fax: (+81)‐058‐230‐8108; phone: (+81)‐058‐230‐8100
| | - T. Miura
- Tokyo University of Pharmacy and Life Sciences, 1432‐1 Horinouchi, Hachioji, Tokyo 192‐0392, Japan, Fax: (+81)‐042‐676‐4469; phone: (+81)‐042‐676‐4469
| | - A. Itoh
- Gifu Pharmaceutical University 1‐25‐4, Daigaku‐nishi, Gifu 501‐1196, Japan, Fax: (+81)‐058‐230‐8108; phone: (+81)‐058‐230‐8100
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Yamaguchi T, Sakairi K, Yamaguchi E, Tada N, Itoh A. Magnesium iodide-catalyzed synthesis of 2-substituted quinazolines using molecular oxygen and visible light. RSC Adv 2016. [DOI: 10.1039/c6ra04073j] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
We disclose a novel and efficient synthesis of 2-substituted quinazolines by aerobic photooxidative reaction catalyzed by magnesium iodide.
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Affiliation(s)
- T. Yamaguchi
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
| | - K. Sakairi
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
| | - E. Yamaguchi
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
| | - N. Tada
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
| | - A. Itoh
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
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Liu C, Kanamaru Y, Watanabe T, Tada N, Horikoshi S, Suzuki Y, Liu Z, Tomino Y. Targeted IgA Fc receptor I (FcαRI) therapy in the early intervention and treatment of pristane-induced lupus nephritis in mice. Clin Exp Immunol 2015; 181:407-16. [PMID: 25907714 DOI: 10.1111/cei.12647] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/21/2015] [Indexed: 11/24/2022] Open
Abstract
The Fc receptor I for IgA (FcαRI) down-regulates humoral immune responses and modulates the risk of autoimmunity. This study aimed to investigate whether FcαRI targeting can affect progression of pristine-induced lupus nephritis. In the first experiment (early intervention), four groups of animals were evaluated: untreated FcαRI/FcRγ transgenic (Tg) mice and Tg mice administered control antibody (Ctr Fab), saline and anti-FcαRI Fab [macrophage inflammatory protein (MIP)-8a], respectively, three times a week for 29 weeks, after being injected once intraperitoneally with 0·5 ml pristane. In the second experiment, antibody injection started after the onset of nephritis and was carried out for 2 months, with similar groups as described above. MIP-8a improved proteinuria, decreased the amounts of glomerular injury markers, serum interleukin (IL)-6, IL-1 and monocyte chemoattractant protein (MCP)-1, and F4/80 macrophages in the interstitium and glomeruli, in both experiments. When MIP-8a was used as early intervention, a decrease in mouse serum anti-nuclear antibody (ANA) titres and reduced deposition of immunoglobulins in glomeruli were observed. This effect was associated with reduced serum titres of immunoglobulin (Ig)G2a but not IgG1, IgG2b and IgG3. Furthermore, pathological analysis showed lower glomerular activity index and less fibronectin in MIP-8a treated mice. This study suggests that FcαRI targeting could halt disease progression and lupus activation by selective inhibition of cytokine production, leucocyte recruitment and renal inflammation. Our findings provide a basis for the use of FcαRI as a molecular target for the treatment of lupus.
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Affiliation(s)
- C Liu
- Division of Nephrology, Department of Internal Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan.,National Clinical Research Center of Kidney Disease, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China
| | - Y Kanamaru
- Division of Nephrology, Department of Internal Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - T Watanabe
- Division of Nephrology, Department of Internal Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - N Tada
- Research Institute for Diseases of Old Age, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - S Horikoshi
- Division of Nephrology, Department of Internal Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Y Suzuki
- Division of Nephrology, Department of Internal Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Z Liu
- National Clinical Research Center of Kidney Disease, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China
| | - Y Tomino
- Division of Nephrology, Department of Internal Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan
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Shibata J, Ishihara S, Tada N, Kawai K, Tsuno NH, Yamaguchi H, Sunami E, Kitayama J, Watanabe T. Surgical stress response after colorectal resection: a comparison of robotic, laparoscopic, and open surgery. Tech Coloproctol 2015; 19:275-80. [PMID: 25762242 DOI: 10.1007/s10151-014-1263-4] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [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: 05/24/2014] [Accepted: 12/20/2014] [Indexed: 12/14/2022]
Abstract
BACKGROUND The perioperative immune status of colorectal robotic surgery (RS), laparoscopic surgery (LS), and open surgery (OS) patients has not been compared. Our aim was to evaluate perioperative stress and immune response after RS, LS and OS. METHODS This prospective study included 46 colorectal surgery patients from the Department of Surgical Oncology of the University of Tokyo Hospital. Peripheral venous blood samples were obtained preoperatively and on postoperative days 1, 3, and 6. We evaluated expression of HLA-DR (marker of immune competence), C-reactive protein (CRP) levels, and lymphocyte subset counts (natural killers, cytotoxic T cells and helper T cells). RESULTS Fifteen, 23, and 8 patients underwent RS, LS and OS, respectively. HLA-DR expression was the lowest on day 1 and gradually increased on days 3 and 6 in all the groups. There was no significant difference in postoperative HLA-DR expression between the RS and LS group. However, on day 3, HLA-DR expression in the RS group was significantly higher than in the OS group (p = 0.04). On day 1, CRP levels in the LS group were significantly lower than in the RS group (p = 0.038). There were no significant perioperative changes in the lymphocyte subset cell count between the three groups. CONCLUSIONS Perioperative surgical stress, as evaluated by immunological parameters, was comparable between robotic and laparoscopic surgery and higher with open surgery. Robotic surgery may be an alternative to laparoscopic surgery, as a minimally invasive surgery option for colorectal cancer.
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Affiliation(s)
- J Shibata
- Department of Surgical Oncology, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan,
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Nagasawa Y, Matsusaki Y, Nobuta T, Tada N, Miura T, Itoh A. Aerobic photooxidative synthesis of 2-aryl-4-quinazolinones from aromatic aldehydes and aminobenzamide using catalytic amounts of molecular iodine. RSC Adv 2015. [DOI: 10.1039/c5ra07275a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This study reports a safe, mild, and environmentally benign synthetic method toward 2-aryl-4-quinazolinones through a cyclization–oxidation sequence using a catalytic amount of iodine, harmless visible light irradiation, and molecular oxygen.
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Affiliation(s)
- Y. Nagasawa
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
| | - Y. Matsusaki
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
| | - T. Nobuta
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
| | - N. Tada
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
| | - T. Miura
- Tokyo University of Pharmacy and Life Sciences
- Tokyo 192-0392
- Japan
| | - A. Itoh
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
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11
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Fujiya A, Nobuta T, Yamaguchi E, Tada N, Miura T, Itoh A. Aerobic photooxidative direct asymmetric aldol reactions of benzyl alcohols using water as the solvent. RSC Adv 2015. [DOI: 10.1039/c5ra05155j] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We report an aerobic photooxidative direct asymmetric aldol reaction using water as the solvent.
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Affiliation(s)
- A. Fujiya
- Gifu Pharmaceutical University 1-25-4
- Gifu 501-1196
- Japan
| | - T. Nobuta
- Gifu Pharmaceutical University 1-25-4
- Gifu 501-1196
- Japan
| | - E. Yamaguchi
- Gifu Pharmaceutical University 1-25-4
- Gifu 501-1196
- Japan
| | - N. Tada
- Gifu Pharmaceutical University 1-25-4
- Gifu 501-1196
- Japan
| | - T. Miura
- Tokyo University of Pharmacy and Life Sciences
- Hachioji
- Japan
| | - A. Itoh
- Gifu Pharmaceutical University 1-25-4
- Gifu 501-1196
- Japan
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12
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Sugiura Y, Tachikawa Y, Nagasawa Y, Tada N, Itoh A. Synthesis of benzoyl cyanide through aerobic photooxidation of benzyl cyanide using carbon tetrabromide as a catalyst. RSC Adv 2015. [DOI: 10.1039/c5ra13269j] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We developed a synthetic method toward benzoyl cyanide through aerobic photooxidation of benzyl cyanide in the presence of carbon tetrabromide under visible light irradiation with fluorescent lamps.
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Affiliation(s)
- Y. Sugiura
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
| | - Y. Tachikawa
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
| | - Y. Nagasawa
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
| | - N. Tada
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
| | - A. Itoh
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
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Watanabe T, Kanamaru Y, Liu C, Suzuki Y, Tada N, Okumura K, Horikoshi S, Tomino Y. Negative regulation of inflammatory responses by immunoglobulin A receptor (FcαRI) inhibits the development of Toll-like receptor-9 signalling-accelerated glomerulonephritis. Clin Exp Immunol 2011; 166:235-50. [PMID: 21985370 DOI: 10.1111/j.1365-2249.2011.04452.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Myeloid FcαRI, a receptor for immunoglobulin (Ig)A, mediates cell activation or inhibition depending on the type of ligand interaction, which can be either multivalent or monovalent. Anti-inflammatory signalling is triggered by monomeric targeting using anti-FcαRI Fab or IgA ligand binding, which inhibits immune and non-immune-mediated renal inflammation. The participation of Toll-like receptors (TLRs) in kidney pathology in experimental models and various forms of human glomerular nephritis has been discussed. However, little is known about negative regulation of innate-immune activation. In the present study, we generated new transgenic mice that express FcαRI(R209L) /FcRγ chimeric protein and showed that the monovalent targeting of FcαRI exhibited inhibitory effects in an in vivo model of TLR-9 signalling-accelerated nephritis. Mouse monoclonal anti-FcαRI MIP8a Fab improved urinary protein levels and reduced the number of macrophages and immunoglobulin deposition in the glomeruli. Monovalent targeting using MIP8a Fab attenuates the TLR-9 signalling pathway and is associated with phosphorylation of extracellular signal-related protein kinases [extracellular signal-regulated kinase (ERK), P38, c-Jun N-terminal kinase (JNK)] and the activation of nuclear factor (NF)-κB. The inhibitory mechanism involves recruitment of tyrosine phosphatase Src homology 2 domain-containing phosphatase-1 (SHP-1) to FcαRI. Furthermore, cell transfer studies with macrophages pretreated with MIP8a Fab showed that blockade of FcαRI signalling in macrophages prevents the development of TLR-9 signalling-accelerated nephritis. These results suggest a role of anti-FcαRI Fab as a negative regulator in controlling the magnitude of the innate immune response and a new type of anti-inflammatory drug for treatment of kidney disease.
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Affiliation(s)
- T Watanabe
- Department of Internal Medicine, Division of Nephrology, Juntendo University Faculty of Medicine, Tokyo, Japan
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Tada N, Ito K, Tomono Y, Yoshida H, Hoshina S. 533 BASIC EVALUATION AND CLINICAL APPLICATION OF BLOOD LIPIDS MEASUREMENT USING A POINT OF CARE TESTING AMONG JAPANESE. ATHEROSCLEROSIS SUPP 2011. [DOI: 10.1016/s1567-5688(11)70534-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Sugi T, Tada N, Goto S, Eriguchi M, Asami T. P24-1 Feature extraction of EEG under mental calculation by combinational use of support vector machine. Clin Neurophysiol 2010. [DOI: 10.1016/s1388-2457(10)60998-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Shimizu I, Tada N. Plastic behaviour and forming limit during biaxial compressions of magnesium alloy AZ31 at room temperature. EPJ Web of Conferences 2010. [DOI: 10.1051/epjconf/20100616001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Sato M, Iwase R, Kasai K, Tada N. Direct injection of foreign DNA into mouse testis as a possible alternative of sperm‐mediated gene transfer. Anim Biotechnol 2009. [DOI: 10.1080/10495399409525801] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- M. Sato
- a Laboratory for Animal Center, Pharma Research and Development Division , Hoechst Japan Limited , 1‐3‐2 Minamidai, Kawagoe, Saitama, 350‐11, Japan
| | - R. Iwase
- a Laboratory for Animal Center, Pharma Research and Development Division , Hoechst Japan Limited , 1‐3‐2 Minamidai, Kawagoe, Saitama, 350‐11, Japan
- b Laboratory of Drug Creation Research, Pharma Research and Development Division , Hoechst Japan Ltd. ,
| | - K. Kasai
- a Laboratory for Animal Center, Pharma Research and Development Division , Hoechst Japan Limited , 1‐3‐2 Minamidai, Kawagoe, Saitama, 350‐11, Japan
| | - N. Tada
- a Laboratory for Animal Center, Pharma Research and Development Division , Hoechst Japan Limited , 1‐3‐2 Minamidai, Kawagoe, Saitama, 350‐11, Japan
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Yanai H, Furutani N, Yoshida H, Tada N. Aseptic spondylodiscitis in a patient with polymyalgia rheumatica. Case Reports 2009; 2009:bcr02.2009.1555. [DOI: 10.1136/bcr.02.2009.1555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Takata K, Tada N. Abstract: P415 EZETIMIBE ENHANCES THE IMPROVEMENT OF POSTPRANDIAL HYPERLIPOPROTEINEMIA BY FIBRATE IN PATIENTS WITH TYPE V HYPERLIPOPROTEINEMIA. ATHEROSCLEROSIS SUPP 2009. [DOI: 10.1016/s1567-5688(09)70710-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Yoshida H, Yanai H, Ito K, Sato N, Tada N. Abstract: 1486 ASTAXANTHIN ADMINISTRATION AMELIORATES SERUM LIPID AND ADIPONECTIN LEVELS IN SUBJECTS WITHIN MILD HYPERLIPIDEMIA: A RANDOMIZED, DOUBLE-BLIND, PLACEBOCONTROLLED STUDY. ATHEROSCLEROSIS SUPP 2009. [DOI: 10.1016/s1567-5688(09)70447-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Yanai H, Furutani N, Tada N. Mediastinal abscess and suppurative thrombophlebitis possibly because of an accidental inhalation of paraquat. Case Reports 2009; 2009:bcr08.2008.0836. [DOI: 10.1136/bcr.08.2008.0836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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Sumiyoshi K, Mokuno H, Iesaki T, Shimada K, Miyazaki T, Kume A, Kiyanagi T, Kuremoto K, Watanabe Y, Tada N, Daida H. Deletion of the Fc receptors chain preserves endothelial function affected by hypercholesterolaemia in mice fed on a high-fat diet. Cardiovasc Res 2008; 80:463-70. [DOI: 10.1093/cvr/cvn206] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Shiono M, Kobayashi T, Takahashi R, Sun G, Abe M, Zhang D, Wang L, Piao X, Takagi Y, Mineki R, Taka H, Tada N, Sonobe S, Momose S, Ueda M, Hino O. The G1556S-type tuberin variant suppresses tumor formation in tuberous sclerosis 2 mutant (Eker) rats despite its deficiency in mTOR inhibition. Oncogene 2008; 27:6690-7. [DOI: 10.1038/onc.2008.283] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Sumiyoshi K, Shimada K, Iesaki T, Miyazaki T, Kume A, Kiyanagi T, Hiki M, Fukao K, Hirose K, Matsumori R, Tada N, Mokuno H, Daida H. DELETION OF RECEPTER ATTENUATES VASCULAR ENDOTHELIAL DYSFUNCTION AND OXYGEN SPECIES PRODUCTION IN LDL RECEPTOR KNOCKOUT MICE. ATHEROSCLEROSIS SUPP 2008. [DOI: 10.1016/s1567-5688(08)70259-9] [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: 10/22/2022]
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Matsunari H, Onodera M, Tada N, Mochizuki H, Haruyama E, Ogawa B, Ikeda Y, Tohi Y, Nakayama N, Saito H, Ueno S, Kurome M, Nagashima H. 305 TRANSGENIC CLONED PIGS EXPRESSING ORANGE FLUORESCENT PROTEIN KUSABIRA-ORANGE. Reprod Fertil Dev 2008. [DOI: 10.1071/rdv20n1ab305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Transgenic (Tg)-cloned pigs expressing fluorescent proteins are very useful in research such as cell or tissue transplantation studies. In this study, we produced Tg-cloned pigs with an orange fluorescent protein, humanized Kusabira-Orange (huKO), and analyzed the characteristics of these pigs. Fetal fibroblast cells transduced with huKO gene by a gene silencing-resistant retroviral vector, pDΔNhuKO (Suzuki et al. 2002 J. Neurochem. 82, 953–960) were used as nuclear donors. Recipient cytoplasts were prepared using oocytes matured in vitro in NCSU23. The nuclear transfer (NT) embryos were transferred into oviducts of estrus-synchronized recipient gilts after culture in PZM-5 for 1 or 2 days. Cloned pigs obtained were analyzed by Southern blotting for the transgene integration. A total of 23 organs and tissues, including brain, eye, internal and reproductive organs, skin, skeletal muscle, and cartilage were examined by fluorescence stereomicroscopy. Cryo- and paraffin-embedded tissue sections were also prepared to examine fluorescence expression. Immunofluorescent staining of brain cryosection and flow cytometry analysis of peripheral blood cells were performed to identify huKO-expressing cells. Transfer of 429 NT embryos into 4 recipients resulted in 18 (4.2%) cloned offspring. Southern blotting analysis of the cloned pigs confirmed transduction of 2 to 17 copies of the huKO gene in each pig. Autopsy was performed in 6 pigs, and orange fluorescence was confirmed in all the tissues and organs examined in each pig. In addition, prominent orange fluorescence was detected in pancreatic islets and renal glomeruli, indicating that these transgenic pigs are ideal for islet cell transplantation studies. Expression of huKO was also detected in neurons, microglia, and astrocytes in the brain, and granulocytes, monocytes, macrophages, lymphocytes, and platelets in the peripheral blood cells, whereas the expression level in red blood cells was lower. Re-cloning was performed using primary culture fibroblast cells established from 2 Tg-cloned pigs. Transfer of 300 re-cloned embryos into 4 recipients resulted in 3 pregnancies. A re-cloned fetus at Day 44 of gestation showed systemic fluorescence. These results demonstrate that the retroviral vector pD?NhuKO is resistant to gene silencing in pigs, that transduction and expression of the huKO gene had no lethal effects on fetal development, and that a Tg-cloned pig expressing orange fluorescence can be produced by NT of fetal fibroblast cells transduced with the huKO gene.
This study was supported by PROBRAIN.
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Affiliation(s)
- H Yanai
- Department of Internal Medicine, Jikei University School of Medicine, Chiba 277-8567, Japan.
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Matsunari H, Kurome M, Tomii R, Ueno S, Hiruma K, Saito H, Hiyama K, Nakayama N, Onodera M, Tada N, Nagashima H. 64 PRODUCTION OF TRANSGENIC CLONED PIGS BY MEANS OF SOMATIC CELL NUCLEAR TRANSFER USING KUSABIRA-ORANGE GENE-TRANSFECTED CELLS. Reprod Fertil Dev 2007. [DOI: 10.1071/rdv19n1ab64] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Cloned pigs that express cell markers such as fluorescent proteins (Vintersten et al. 2004 Genesis 40, 241–246) are useful in biomedical research in areas such as cell/tissue transplantation and regenerative medicine. In this study, we attempted to produce transgenic cloned pigs from porcine fetal fibroblasts which carry the gene of red fluorescent protein, humanized Kusabira-Orange (huKO). We examined whether huKO-transfected cells are suitable as nuclear donors for somatic cell cloning, and whether red fluorescence can be detected in the cloned embryos. We used porcine fetal fibroblasts transfected with the huKO gene and a retroviral vector as the nuclear donor cells. Non-transfected cells were used as the control. Cumulus–oocyte complexes collected from slaughterhouse ovaries were in vitro-matured in NCSU23 medium to produce recipient oocytes. Nuclear transfer was conducted using a previously reported method (Kurome et al. 2003 Cloning Stem Cells 5, 367–377); the following parameters which determine the overall efficiency of nuclear transfer were investigated: (1) fusion rate between the donor cells and recipient oocytes, (2) rates of normal cleavage and blastocyst formation of the NT embryos, and (3) cell numbers in each blastocyst. A DC pulse (190 V mm-1) was used for electric fusion, and NCSU23 or PZM-5 medium was used for culturing the cloned embryos. The NT embryos on Day 7 were examined under a fluorescence microscope (G excitation) in order to evaluate the expression of red fluorescence. Some cloned embryos at the 1- to 8-cell stage (Day 1 or 2) were transferred into oviducts of estrus-synchronized recipient gilts. There was no significant difference (chi-square test) between the huKO and the control groups in the rate of fusion (132/151, 87.4% vs. 134/147, 91.2%, respectively) and cleavage rate (78/132, 59.1% vs. 86/134, 64.2%, respectively). A significantly greater percentage of huKO cell-derived embryos developed into blastocysts than did control cell-derived embryos (37/132, 28.0% vs. 20/134, 14.9%, respectively; P < 0.05). However, there was no significant difference in the blastocyst cell numbers (Student's t-test: 48.6 ± 4.8 vs. 42.3 ± 4.9, respectively). Of the 132 NT embryos, 116 (87.9%) expressed red fluorescence. The percentage of blastocysts expressing red fluorescence was 94.6% (35/37). These results demonstrate that it is possible to obtain cloned blastocysts at a high rate by nuclear transfer of cells that have been transfected with huKO using a retroviral vector, and that it is possible to observe the expression of red fluorescence in cloned embryos. With respect to the cloned embryos that did not show expression of red fluorescence, we hypothesize that this was the result of a small proportion (<1%) of donor cells which also lacked red fluorescence expression. An ultrasonic echo examination has confirmed that all 3 of the recipients which had received 93 to 119 embryos became pregnant.
This study was supported by PROBRAIN.
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Kamata Y, Tada N, Saka M, Minakawa F, Hoshi H. Production of monoclonal antibodies against Chinemys reevesii turtle vitellogenin and their usage for comparison of biochemical and immunological characters of vitellogenins and yolk proteins of freshwater turtles. Comp Biochem Physiol B Biochem Mol Biol 2005; 142:233-8. [PMID: 16122960 DOI: 10.1016/j.cbpb.2005.07.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2005] [Revised: 07/20/2005] [Accepted: 07/21/2005] [Indexed: 10/25/2022]
Abstract
Four hybridoma clones (ACV-1, -3, -4, and -5) were established for Chinemys reevesii (Reeves' turtle) vitellogenin (VTG) as a precursor protein of egg yolk and a biomarker of environmental pollution. Binding-inhibition experiments indicated that the epitopes of four mAbs were distinct. No binding of ACV-4 to C. reevesii VTG in the Western blot suggests that the epitope of ACV-4 would be dependent on the three-dimensional structure. ACV-1, -3, and -5 bound to C. reevesii VTG in the Western blot. The signal for ACV-1 and -5 disappeared by reduction of the VTG, suggesting that the construction of the epitopes for ACV-1 and -5 were dependent on the disulfide bridge in the VTG molecule. All four mAbs recognized Trachemys scripta and Mauremys japonica VTGs in the ELISA. The yolk proteins were tested for the binding of the mAbs in the Western blot. ACV-1 being capable to bind to the VTG in the reduced condition did not bind to any protein bands of the yolk. This indicates that ACV-1 recognizes a part of the VTG molecule that is not incorporated in the oocytes. Both ACV-3 and -5 bound to the 32- and 70-kDa yolk proteins. Since a mAb recognizes only one site (epitope) on a protein molecule, the 32-kDa protein originated from the 70-kDa one. An ELISA system using ACV-5 as the capture antibody and ACV-3 as the detecting antibody showed the lower detectable concentration (2 ng/mL) and a wide detectable range to 1000 ng/mL (R2=0.999). The system was used to determine serum VTG levels of juvenile turtles treated with estradiol-17beta or vehicle (corn oil). By the use of the mAbs described in this paper, basic and applied studies for turtle VTGs would be improved.
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Affiliation(s)
- Y Kamata
- Graduate School of Agriculture and Biological Sciences, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai, Osaka 599-8531, Japan.
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Utsumi T, Mochizuki T, Tada N, Kaji N. Electrical Enhancement Technique for CO2 Absorption by Water Flowing on a Plate Electrode. Chem Eng Res Des 2005. [DOI: 10.1205/cherd.04164] [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: 11/19/2022]
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Tada N, Saka M, Ueda Y, Hoshi H, Uemura T, Kamata Y. Comparative analyses of serum vitellogenin levels in male and female Reeves' pond turtles ( Chinemys reevesii ) by an immunological assay. J Comp Physiol B 2004; 174:13-20. [PMID: 14513265 DOI: 10.1007/s00360-003-0384-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/11/2003] [Indexed: 12/01/2022]
Abstract
A quantitative immunological method was developed for measuring serum vitellogenin levels of Reeves' pond turtles (Chinemys reevesii) to investigate the effects of endocrine disruptors on the freshwater ecosystem. Vitellogenin was induced by injecting estradiol-17beta into C. reevesii turtles (adult females, juvenile females, and males) and was purified from the turtle serum by EDTA-MgCl2 precipitation followed by gel filtration. Using a polyclonal antibody raised against C. reevesii vitellogenin, an enzyme-linked immunosorbant assay was established. The detectable range, recovery of vitellogenin, and coefficient of variation in this assay were 0.0040-1.0 microg.ml(-1), 85.3-109% and 3.4-11.5%, respectively. This assay was also applicable for measurement of the concentrations of vitellogenins from other species, Japanese pond turtles (Mauremys japonica) and red-eared turtles (Trachemys scripta). The serum vitellogenin concentration of 131 C. reevesii turtles captured at a Japanese local river was measured by the assay. In females, vitellogenin ranged from 0.10 microg.ml(-1) to 15,000 microg.ml(-1) with two peaks, 0.10-1.0 microg.ml(-1) (juveniles) and 1,000-10,000 microg.ml(-1) (adults). However, in males, it ranged from 0.10 microg.ml(-1) to 0.60 microg.ml(-1), showing one peak, 0.10-0.20 microg.ml(-1). Therefore, if relatively high concentrations of vitellogenin are detected in males or juvenile females, it is suggested that they would have been exposed to xenobiotic estrogens.
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Affiliation(s)
- N Tada
- Kyoto Prefectural Institute of Hygienic and Environmental Sciences, 395 Murakami-cho, Fushimi-ku, 612-8369 Kyoto, Japan
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Homma Y, Yamashita T, Yoshida H, Tada N, Teramoto T, Nakamura H. 4P-1119 Relationship between changes in plasma atherosclerotic surrogate markers and changes in plasma triglyceride-rich lipoproteins by bezafibrate treatment. ATHEROSCLEROSIS SUPP 2003. [DOI: 10.1016/s1567-5688(03)91375-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Tada N, Yoshida H, Furutami N, Shoji K, Takeshita M, Watanabe H, Tokimitsu I. 2P-0426 Effects of diacylglycerol loading on postprandial hyperlipidemia in diabetes. ATHEROSCLEROSIS SUPP 2003. [DOI: 10.1016/s1567-5688(03)90568-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Yoshida H, Tada N. 2P-0439 Effect of HMG CoA reductase inhibitor (statin) on ABCA1 expression and HDL-induced cholesterol efflux in macrophages. ATHEROSCLEROSIS SUPP 2003. [DOI: 10.1016/s1567-5688(03)90581-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Yoshida H, Kurosawa H, Doumitsu K, Hirowatari Y, Tada N. 2P-0431 Usefulness of measuring VLDL cholesterol in diabetic patients. ATHEROSCLEROSIS SUPP 2003. [DOI: 10.1016/s1567-5688(03)90573-3] [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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Matsushima Y, Sakurai T, Ohoka A, Ohnuki T, Tada N, Asoh Y, Tachibana M. Four strains of spontaneously hyperlipidemic (SHL) mice: phenotypic distinctions determined by genetic backgrounds. J Atheroscler Thromb 2002; 8:71-9. [PMID: 11866033 DOI: 10.5551/jat1994.8.71] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Spontaneously hyperlipidemic (SHL) mice are Japanese wild mice (KOR) with disruption of the apolipoprotein E (Apo E) gene. These mice (KOR-Apoe(shl)) are superhypercholesterolemic and develop severe xanthoma, but their atherosclerosis is relatively mild compared with Apo E knockout mice. First, we tested whether this distinction is due to additional mutation of the Apoc1 and/or Apoc2 genes in KOR-Apoe(shl). Southern blot analysis, but found no gross disruption of these genes. Next, we tested whether the phenotypic distinction is due to differences in the genetic background. To this end, we established three lines of congenic SHL mice with a genetic background of C57BL/6, BALB/c or C3H/He, and named them, respectively, C57BL/6.KOR-Apoe(shl) (B6.KOR-Apoe(shl)), BALB/c.KOR-Apoe(shl) (C.KOR-Apoe(shl)) and C3H/He.KOR-Apoe(shl) (C3.KOR-Apoe(shl)). Hypercholesterolemia was most severe in KOR-Apoe(shl) followed the by others as follows; KOR-Apoe(shl)>>C3.KOR-Apoe(shl)>C.KOR-Apoe(shl)>B6.KOR-Apoe(shl). In contrast, atherosclerosis was most severe in B6.KOR Apoe(shl) followed by the others: B6.KOR-Apoe(shl)>C.KOR-Apoe(shl)>>C3.KOR-Apoe(shl)> or =KOR-Apoe(shl). This order, however, did not match that in xanthoma, which was highly prominent in KOR-Apoe(shl) but mild in B6.KOR-Apoe(shl), C.KOR-Apoe(shl) and C3.KORApoe(shl). This order, however, did not match that in xanthoma, which was highly prominant in KOR-Apoe(shl) but mild in B6.KOR-Apoe(shl), C.KOR-Apoe(shl) and C3.KOR-Apoe(shl). These distinctions suggest that the severity of each of the phenotypes is determined by distinct genetic backgrounds which probably are composed of polymorphism of lipid metabolism-related proteins. We found that apolipoprotein A-I is decreased in each SHL strain and polymorphic between B6.KOR-Apoe(shl) and the other strains examined. This polymorphism may be related to the most severe atherosclerosis observed in B6.KOR-Apoe(shl). It is most likely that combination of such polymorphisms is due to the genetic background accountable for phenotype distinctions.
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Affiliation(s)
- Y Matsushima
- Research Institute, Saitama Cancer Center, Ina, Japan.
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Maruyama H, Higuchi N, Nishikawa Y, Kameda S, Iino N, Kazama JJ, Takahashi N, Sugawa M, Hanawa H, Tada N, Miyazaki J, Gejyo F. High-level expression of naked DNA delivered to rat liver via tail vein injection. J Gene Med 2002; 4:333-41. [PMID: 12112650 DOI: 10.1002/jgm.281] [Citation(s) in RCA: 93] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND High levels of foreign gene expression in mouse hepatocytes can be achieved by rapid tail vein injection of a large volume of a naked DNA solution, the 'hydrodynamics-based procedure'. Rats are more tolerant of the frequent phlebotomies required for monitoring blood parameters than mice, and thus are better for some biomedical research. METHODS We tested this technique for the delivery of a therapeutic protein in normal rats, using a rat erythropoietin (Epo) expression plasmid vector, pCAGGS-Epo. RESULTS We obtained maximal Epo expression when the DNA solution was injected in a volume of 25 ml (approximately 100 ml/kg body weight) within 15 s. We observed a dose-response relationship between serum Epo levels and the amount of injected DNA up to 800 microg. Using quantitative real-time PCR, the vector-derived Epo mRNA expression was mainly detected in the liver. When a lacZ expression plasmid was injected similarly, beta-galactosidase was exclusively detected in the liver, mainly in hepatocytes. Toxicity attributable to the technique was mild and transient, as assessed by histochemical analysis. Epo gene expression and erythropoiesis occurred with Epo gene transfer in a dose-dependent manner, and persisted for at least 12 weeks, the last time point examined. Repeated administration of the plasmid DNA also effectively led to erythropoiesis. CONCLUSIONS These results demonstrate that gene transfer into the liver via rapid tail vein injection can easily be achieved in the rat, which is more than 10 times larger than the mouse, and has significant value for gene function analysis in rats.
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Affiliation(s)
- H Maruyama
- Division of Clinical Nephrology and Rheumatology, Niigata University Graduate School of Medical and Dental Sciences, 1-757 Asahimachi-dori, Niigata 951-8120, Japan.
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Abstract
The viability and fertility of isolated mouse epididymal spermatozoa kept for up to 7 days at various temperatures (4 degrees C, 22 degrees C, and 37 degrees C) were determined. Spermatozoa kept for 3 days at 22 degrees C were still active, while those kept at 37 degrees C or 4 degrees C exhibited great reduction in motility within 2 days after isolation. In vitro fertilizing abilities of spermatozoa left for 0, 1, 2, and 3 days at 22 degrees C were 69.2, 32.5, 9.5, and 4.9%, respectively, when the cleavage rate to two-cell stage was examined. Transfer of two-cell embryos produced in vitro with spermatozoa left for 1, 2, and 3 days at 22 degrees C resulted in production of fetuses with efficiencies of respectively 30.2, 11.5, and 16.7%, which were lower (63.3%) than that of embryos derived from in vitro fertilization with fresh spermatozoa. These findings indicate that spermatozoa kept for up to 3 days at 22 degrees C can fertilize oocytes, although at relatively low efficiency.
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Affiliation(s)
- M Sato
- The Institute of Medical Sciences, Tokai University, Bohseidai, Isehara, Kanagawa, Japan.
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Abstract
BACKGROUND Interleukin (IL)-1 has profound effects on nonimmune cells and organs, including the heart. The effects of IL-1 on transgenic hearts have not yet been described. METHODS AND RESULTS We generated transgenic mice overexpressing the human IL-1 gene under control of the cytomegalovirus enhancer/chicken beta-actin promoter. Heart weight-body weight ratio increased 1.4- to 2.2-fold in transgenic mice compared with wild-type mice. Lung weight-body weight ratio also increased in transgenic mice, all of which died within 14 days of birth. Light microscopy revealed concentric hypertrophy with cardiomyocyte hypertrophy in all transgenic mice and pulmonary edema in some of them. Electron microscopy showed myofilament loss and an increased number of giant mitochondria, but no sarcomere disarray. Northern blotting showed that gene expression had been reprogrammed in the left ventricle of transgenic mice. Expression of fetal-type genes such as prepro-atrial natriuretic factor and beta-myosin heavy chain were increased, but voltage-dependent calcium channel messenger RNA expression was decreased in the left ventricle of transgenic mice compared with that of wild-type mice. CONCLUSIONS IL-1 may cause structural and functional alterations in cardiac myocytes.
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Affiliation(s)
- K Isoda
- First Department of Internal Medicine, National Defense Medical College, Tokorozawa, Saitama, Japan
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Tada N, Watanabe H, Matsuo N, Tokimitsu I, Okazaki M. Dynamics of postprandial remnant-like lipoprotein particles in serum after loading of diacylglycerols. Clin Chim Acta 2001; 311:109-17. [PMID: 11566170 DOI: 10.1016/s0009-8981(01)00583-6] [Citation(s) in RCA: 86] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
BACKGROUND To compare the effects of diacylglycerol (DAG) on postprandial lipid metabolism with triacylglycerol (TAG), we examined the differences in the dynamics of remnant lipoproteins after loading of DAG or TAG of the same fatty acid composition. METHODS The subjects were comprised of 6 male volunteers who orally took creamed test meals prepared with either DAG or TAG at a dose of 30 g lipid/m(2) of body surface area in the early morning after fasting for at least 12 h. Blood was taken before and 2, 3, 4, 6 and 8 h after lipid loading. To quantify the amount of remnants, as the parameters, we used concentrations of cholesterol (RLP-C) and triacylglycerol (RLP-TG) in remnant-like lipoprotein particles (RLP) of serum. RESULTS The serum triacylglycerol concentration was markedly increased 2 h after loading of DAG and TAG. Serum triacylglycerol concentrations at 2, 3 and 8 h after loading of DAG were significantly lower than those after loading of TAG. The serum RLP-C concentration was significantly lower 2, 3 and 8 h after loading of DAG than TAG. There was a trend toward less increase in the RLP-TAG in the DAG group. The area under the curve (AUC) of serum RLP-TAG after DAG loading was significantly lower than that following TAG loading. CONCLUSIONS DAG might reduce the risk of coronary arteriosclerotic diseases by weakening the postprandial increase of RLP that is known to be closely correlated with atherosclerosis.
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Affiliation(s)
- N Tada
- Department of General Medicine, Kashiwa Hospital, Jikei University School of Medicine, 163-1 Kashiwashita, Kashiwa, Chiba 277-8567, Japan
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Seki M, Fairchild S, Rosenwasser OA, Tada N, Tomonari K. An immature rat lymphocyte marker CD157: striking differences in the expression between mice and rats. Immunobiology 2001; 203:725-42. [PMID: 11563673 DOI: 10.1016/s0171-2985(01)80002-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
We have established a novel monoclonal antibody that recognises mouse and rat CD157, and uncovered striking differences in both the level and stage of expression of this antigen in the primary lymphoid organs between these two species. Unlike mouse, the majority of rat thymocytes express CD 157. SHR and WKY rats were the exception, having unusually low levels (similar to those of the mouse) of these cells. However, in both species, a subset of CD3- CD4- CD8- thymocytes exhibited high levels of CD157. Surprisingly, these CD157high cells temporarily upregulated MHC class I molecules in both species. Furthermore, a third of CD157high rat thymocytes were CD45RC+, a marker found on immature thymocytes with regenerative capacity. Examination of the bone marrow lymphoid population shows that the expression of rat CD157 is largely observed at the CD45R+ IgM- pre-B-II cell stage, and unlike mouse, extension of expression into the IgM+ immature B cell stage was marginal. Similar to CD157high immature thymocytes, these immature B cells also expressed high levels of MHC class I. With the exception of the LEC, SHR and WKY rat strains, which have three- to four-fold less CD157+ bone marrow myeloid cells, percentages of these cells are similar between these two species. Thus, marked differences in the level and stage(s) of CD157 expression on lymphoid cells in mouse and rat indicate that CD157 may not, as previously thought, have a direct role in T or B cell differentiation.
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Affiliation(s)
- M Seki
- Department of Immunology and Parasitology, Fukui Medical School, Matsuoka, Japan
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Demura S, Noda M, Minami M, Nagasawa Y, Tada N, Matsuzawa J. [Factors related to satisfaction level in daily life for older people]. Nihon Koshu Eisei Zasshi 2001; 48:356-66. [PMID: 11433739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
Abstract
The purpose of this study was to examine relations between satisfaction levels and life-style in daily life for older people. A questionnaire, based on 7 factors of life satisfaction level and 13 factors of life-style chosen after considering theoretical validity, was administered to 1,320 healthy people aged 60 or more in the community (665 males and 655 females). Remarkable gender and grade differences were confirmed in the "physical health" satisfaction level. Satisfaction level for "personal relations" related to the number of friends for both sexes and to volunteer activities for males. The influence of the life-style factor on satisfaction level was highest in physical health. The influence of the number of friends was high for each satisfaction level. It was inferred that there are many aspects of life-style backgrounds contributing to the satisfaction level of older people in the community, and individual satisfaction with daily life is affected by different life-style factors.
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Affiliation(s)
- S Demura
- Faculty of Education, Kanazawa University
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44
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Niki Y, Yamada H, Seki S, Kikuchi T, Takaishi H, Toyama Y, Fujikawa K, Tada N. Macrophage- and neutrophil-dominant arthritis in human IL-1 alpha transgenic mice. J Clin Invest 2001; 107:1127-35. [PMID: 11342576 PMCID: PMC209277 DOI: 10.1172/jci11530] [Citation(s) in RCA: 86] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
To study the effects of IL-1 alpha in arthritis, we generated human IL-1 alpha (hIL-1 alpha). Transgenic mice expressed hIL-1 alpha mRNA in various organs, had high serum levels of hIL-1 alpha, and developed a severe polyarthritic phenotype at 4 weeks of age. Not only bone marrow cells but also synoviocytes from knee joints produced biologically active hIL-1 alpha. Synovitis started 2 weeks after birth, and 8-week-old mice showed hyperplasia of the synovial lining layer, the formation of hyperplastic synovium (pannus) and, ultimately, destruction of cartilage. Hyperplasia of the synovial lining was due to the accumulation of macrophage-like cells expressing F4/80 molecules. hIL-1 alpha was widely distributed in macrophage- and fibroblast-like cells of the synovial lining cells, as well as synovial fluid monocytes. T and B cells were rare in the synovial fluid, and analysis of marker expression suggests that synoviocytes were directly histolytic and did not act as antigen-presenting cells. In the joints of these mice, we found elevated levels of cells of the monocyte/macrophage and granulocyte lineages and of polymorphonuclear neutrophils (PMNs), most of which expressed Gr-1, indicating that they were mature, tissue-degrading PMNS: Cultured synoviocytes and PMNs from these animals overexpress GM-CSF, suggesting that the hematopoietic changes induced by IL-1 and the consequent PMN activation and joint destruction are mediated by this cytokine.
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Affiliation(s)
- Y Niki
- Department of Orthopaedic Surgery, Keio University, Tokyo, Japan.
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Abstract
OBJECTIVE It is known that eustachian tubal compliance has influence on the tubal function. We applied the direct measurement method to ascertain whether or not aging and tubal diseases are related to the compliance of the cartilaginous part of the eustachian tube. METHODS We developed a method for directly measuring tubal compliance by inserting a balloon catheter, which is inflated with water, into the eustachian tube and comparing the change in balloon pressure with the balloon volume. This method is advantageous in that one can directly measure tubal compliance in the cartilaginous part of the eustachian tube. Using this method we examined tubal compliance in 16 normal young volunteer ears, 21 normal elderly volunteer ears, 11 elderly ears with patulous tube and 12 elderly ears with stenotic tube including otitis media with effusion. RESULTS In adults the tubal compliance increases in value with age. Tubal compliance of the elderly patulous tube was significantly higher than that of the normal elderly one, on the other hand the compliance of the elderly stenotic tube was significantly lower than that of the normal one. CONCLUSION Tubal compliance was considered to be changed with aging and influence of the patulous and stenotic tubes.
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Affiliation(s)
- A Kaneko
- Department of Otolaryngology, Kansai Medical University, 570-8507, Osaka, Japan
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Tada N. [Gemfibrozil: new aspects in clinical use]. Nihon Rinsho 2001; 59 Suppl 3:625-30. [PMID: 11347143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
Affiliation(s)
- N Tada
- Department of General Medicine, Kashiwa Hospital, Jikei University School of Medicine
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Tada N. [Familial hyperchylomicronemia syndrome]. Nihon Rinsho 2001; 59 Suppl 3:13-21. [PMID: 11347044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
Affiliation(s)
- N Tada
- Department of General Medicine, Kashiwa Hospital, Jikei University School of Medicine
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Tada N. [Overviews of fibrate]. Nihon Rinsho 2001; 59 Suppl 3:609-17. [PMID: 11347141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
Affiliation(s)
- N Tada
- Department of General Medicine, Kashiwa Hospital, Jikei University School of Medicine
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49
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Tada N. [Remnant hyperlipidemia]. Nihon Rinsho 2001; 59 Suppl 3:112-8. [PMID: 11347041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
Affiliation(s)
- N Tada
- Department of General Medicine, Kashiwa Hospital, Jikei University School of Medicine
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50
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Shoda T, Tada N. [Primary type V hyperlipidemia]. Nihon Rinsho 2001; 59 Suppl 3:34-7. [PMID: 11347091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
Affiliation(s)
- T Shoda
- Department of General Internal Medicine, Kasiwa Hospital, Jikei University School of Medicine
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