151
|
Ishida Y, Nagai S, Kato H, Hamada Y, Takano M, Shibahara T, Saito C. A case of mandibular reconstruction with a custom-made mesh plate using three dimensional model created from patient's CT data. Int J Oral Maxillofac Surg 2015. [DOI: 10.1016/j.ijom.2015.08.140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
152
|
Fujita K, Endoh S, Kato H, Shinohara N, Honda K. Development and dissemination of hazard assessment of carbon nanotubes by in vitro cell-based assay for voluntary safety management. Toxicol Lett 2015. [DOI: 10.1016/j.toxlet.2015.08.590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
153
|
Sugimoto H, Hatano M, Yoshida S, Sakumoto M, Kato H, Ito M, Yoshizaki T. Efficacy of concurrent superselective intra-arterial chemotherapy and radiotherapy for late-stage squamous cell carcinoma of the temporal bone. Clin Otolaryngol 2015; 40:500-4. [DOI: 10.1111/coa.12431] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/29/2015] [Indexed: 11/28/2022]
|
154
|
Hoshino M, Limão-Vieira P, Suga A, Kato H, Ferreira da Silva F, Blanco F, García G, Tanaka H. Crossed-beam experiment for the scattering of low- and intermediate-energy electrons from BF3: A comparative study with XF3 (X = C, N, and CH) molecules. J Chem Phys 2015; 143:024313. [DOI: 10.1063/1.4926539] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
155
|
Yokoi N, Sonomura Y, Kato H, Komuro A, Kinoshita S. Three percent diquafosol ophthalmic solution as an additional therapy to existing artificial tears with steroids for dry-eye patients with Sjögren's syndrome. Eye (Lond) 2015; 29:1204-12. [PMID: 26160526 DOI: 10.1038/eye.2015.125] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Accepted: 05/15/2015] [Indexed: 11/09/2022] Open
Abstract
PURPOSE To investigate the long-term results of 3% diquafosol ophthalmic solution as an alternative therapy to existing ophthalmic solutions, including topical immunosuppression, for the treatment of dry eye in patients with Sjögren's syndrome. METHODS This study involved 14 female dry-eye patients (mean age: 62.4 years) with Sjögren's syndrome who insufficiently responded to their current therapy. In all patients, 3% diquafosol ophthalmic solution was administered six times daily for 12 months in substitution for artificial tears and sodium hyaluronate ophthalmic solution. Their use of corticosteroid eye drops remained unchanged from that prior to the treatment with diquafosol sodium. The subjective symptoms assessed, and ocular signs including tear meniscus radius and the tear film breakup time, and ocular-surface epithelial damage score were examined at 1, 2, 3, 4, 5, 6, 9, and 12 months after initiating treatment. RESULTS Among the subjective symptoms, significant improvement was obtained in dryness at 2 months post treatment, in eye fatigue at 1, 2, 3, 4, and 12 months post treatment, and in pain at 1, 2, 6, and 12 months post treatment. Difficulty in opening the eye, foreign body sensation, and redness were also significantly ameliorated at various time-points. The tear meniscus radius and the tear film breakup time were significantly improved throughout the observation period, and the corneal epithelial staining scores were significantly decreased at 3 months post treatment. CONCLUSIONS In dry-eye patients with Sjögren's syndrome, treatment with 3% diquafosol ophthalmic solution improved both symptoms and signs, and that effectiveness was maintained for 12 months.
Collapse
|
156
|
Yamazaki H, Uchiyama S, Komatsu M, Hashimoto S, Kobayashi Y, Sakurai T, Kato H. Arthroscopic assistance does not improve the functional or radiographic outcome of unstable intra-articular distal radial fractures treated with a volar locking plate. Bone Joint J 2015; 97-B:957-62. [DOI: 10.1302/0301-620x.97b7.35354] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
There is no consensus on the benefit of arthroscopically assisted reduction of the articular surface combined with fixation using a volar locking plate for the treatment of intra-articular distal radial fractures. In this study we compared the functional and radiographic outcomes of fluoroscopically and arthroscopically guided reduction of these fractures. Between February 2009 and May 2013, 74 patients with unilateral unstable intra-articular distal radial fractures were randomised equally into the two groups for treatment. The mean age of these 74 patients was 64 years (24 to 92). We compared functional outcomes including active range of movement of the wrist, grip strength and Disabilities of the Arm, Shoulder, and Hand scores at six and 48 weeks; and radiographic outcomes that included gap, step, radial inclination, volar angulation and ulnar variance. There were no significant differences between the techniques with regard to functional outcomes or radiographic parameters. The mean gap and step in the fluoroscopic and arthroscopic groups were comparable at 0.9 mm (standard deviation (sd) 0.7) and 0.7 mm (sd 0.7) and 0.6 mm (sd 0.6) and 0.4 mm (sd 0.5), respectively; p = 0.18 and p = 0.35). Arthroscopic reduction conferred no advantage over conventional fluoroscopic guidance in achieving anatomical reduction of intra-articular distal radial fractures when using a volar locking plate. Cite this article: Bone Joint J 2015; 97-B:957–62.
Collapse
|
157
|
Hayashig M, Makoto M, Kato H. Carpal tunnel syndrome associated with underlying Kienböck's disease. J Hand Surg Eur Vol 2015; 40:638-9. [PMID: 23461913 DOI: 10.1177/1753193413481937] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
|
158
|
Yamakawa T, Hayashi N, Hamano H, Yasui K, Kato H. SU-E-T-743: The Simple Monitor Unit Calculation for Irregular Field in Passive Proton Beam. Med Phys 2015. [DOI: 10.1118/1.4925107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
159
|
Hamano H, Hayashi N, Yamakawa T, Yasui K, Kato H. SU-E-T-439: Fundamental Verification of Respiratory-Gated Spot Scanning Proton Beam Therapy. Med Phys 2015. [DOI: 10.1118/1.4924800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
160
|
Goto T, Nakayama R, Yamanaka M, Takata M, Takazawa T, Watanabe K, Maruta K, Nagata R, Nagamine J, Tsuchida A, Kato H. Effects of DSP-8658, a Novel Selective Peroxisome Proliferator-activated Receptors a/γ Modulator, on Adipogenesis and Glucose Metabolism in Diabetic Obese Mice. Exp Clin Endocrinol Diabetes 2015; 123:492-9. [DOI: 10.1055/s-0035-1549965] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
161
|
Horie M, Kato H, Endoh S, Fujita K, Komaba LK, Nishio K, Nakamura A, Miyauchi A, Yamamoto K, Kinugasa S, Hagihara Y, Yoshida Y, Iwahashi H. Cellular effects of industrial metal nanoparticles and hydrophilic carbon black dispersion. J Toxicol Sci 2015; 39:897-907. [PMID: 25421968 DOI: 10.2131/jts.39.897] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
The effects of five types of metal nanoparticles, gold (Au), silver (Ag), platinum (Pt), Au-polyvinylpyrrolidone (PVP) colloid, and Pt-PVP colloid, and two types of hydrophilic carbon black on cell behavior were examined. Stable nanoparticle dispersions were prepared and applied to the culture medium of human keratinocyte (HaCaT) and human lung carcinoma (A549) cells for 6 and 24 hr. Then, the mitochondrial activity (MTT assay) and the induction of cellular oxidative stress were examined. The exposure to Au and Ag decreased mitochondrial activity. The exposure to Pt nanoparticles induced an increase in the intracellular reactive oxygen species (ROS) level. In contrast, Au-PVP, Pt-PVP, and hydrophilic carbon black did not exhibit any effects. The observed increase in the ROS level induced by the Pt nanoparticles in this study contradicted our previous findings, in which Pt did not produce chemically reactive molecules. Some nanoparticle dispersions included chemicals as the dispersant, which is used in industrial applications. In some cases, the dispersing agent may have caused some cellular effects. Adsorption of agents on the surface of the nanoparticles may be an important factor here. Hence, the cellular effects of industrial nanoparticles should be evaluated carefully.
Collapse
|
162
|
Fujita K, Fukuda M, Endoh S, Maru J, Kato H, Nakamura A, Shinohara N, Uchino K, Honda K. Size effects of single-walled carbon nanotubes on in vivo and in vitro pulmonary toxicity. Inhal Toxicol 2015; 27:207-23. [PMID: 25865113 PMCID: PMC4487552 DOI: 10.3109/08958378.2015.1026620] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
To elucidate the effect of size on the pulmonary toxicity of single-wall carbon nanotubes (SWCNTs), we prepared two types of dispersed SWCNTs, namely relatively thin bundles with short linear shapes (CNT-1) and thick bundles with long linear shapes (CNT-2), and conducted rat intratracheal instillation tests and in vitro cell-based assays using NR8383 rat alveolar macrophages. Total protein levels, MIP-1α expression, cell counts in BALF, and histopathological examinations revealed that CNT-1 caused pulmonary inflammation and slower recovery and that CNT-2 elicited acute lung inflammation shortly after their instillation. Comprehensive gene expression analysis confirmed that CNT-1-induced genes were strongly associated with inflammatory responses, cell proliferation, and immune system processes at 7 or 30 d post-instillation. Numerous genes were significantly upregulated or downregulated by CNT-2 at 1 d post-instillation. In vitro assays demonstrated that CNT-1 and CNT-2 SWCNTs were phagocytized by NR8383 cells. CNT-2 treatment induced cell growth inhibition, reactive oxygen species production, MIP-1α expression, and several genes involved in response to stimulus, whereas CNT-1 treatment did not exert a significant impact in these regards. These results suggest that SWCNTs formed as relatively thin bundles with short linear shapes elicited delayed pulmonary inflammation with slower recovery. In contrast, SWCNTs with a relatively thick bundle and long linear shapes sensitively induced cellular responses in alveolar macrophages and elicited acute lung inflammation shortly after inhalation. We conclude that the pulmonary toxicity of SWCNTs is closely associated with the size of the bundles. These physical parameters are useful for risk assessment and management of SWCNTs.
Collapse
|
163
|
Hoshino M, Murai H, Kato H, Itikawa Y, Brunger M, Tanaka H. Corrigendum to “Resolution of a significant discrepancy in the electron impact excitation of the 3s[3/2]1 and 3s′[1/2]1 low-lying electronic states in neon” [Chem. Phys. Lett. 585 (2013) 33]. Chem Phys Lett 2015. [DOI: 10.1016/j.cplett.2015.03.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
164
|
Hoshino M, Murai H, Kato H, Brunger MJ, Itikawa Y, Tanaka H. Erratum: "Electron impact excitation of the low-lying 3s[3/2]1 and 3s'[1/2]1 levels in neon for incident energies between 20 and 300 eV" [J. Chem. Phys. 139, 184301 (2013)]. J Chem Phys 2015; 142:129903. [PMID: 25833615 DOI: 10.1063/1.4916381] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
165
|
Kato H, Arita A, Kumagai T. Evaluation of bonding performance using new adhesive and composite resin. Dent Mater 2015. [DOI: 10.1016/j.dental.2015.08.089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
166
|
Kato H, Nakayama T, Uruma M, Okuyama Y, Handa M, Tomiyama Y, Shimodaira S, Takamoto S. A retrospective observational study to assess adverse transfusion reactions of patients with and without prior transfusion history. Vox Sang 2014; 108:243-50. [PMID: 25536173 DOI: 10.1111/vox.12208] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2014] [Revised: 09/16/2014] [Accepted: 09/16/2014] [Indexed: 02/03/2023]
Abstract
BACKGROUND AND OBJECTIVES This study compares the frequency of adverse transfusion reactions (ATRs) after first transfusions with the frequency of ATRs for subsequent (non-first) transfusions. MATERIALS AND METHODS Five hospitals agreed to systematically collect and share 2 years of data. This was a retrospective observational analysis of data including the number of transfusion episodes and ATRs for red blood cells (RBCs), fresh frozen plasma (FFP) and platelet concentrates (PCs) given to first-time transfusion recipients and to those previously transfused. RESULTS First transfusion ATRs to RBCs, FFP and PCs were 1.08%, 2.84% and 3.34%, respectively. These are higher than ATR incidences to RBCs (0.69%), FFP (1.91%) and PCs (2.75%) on subsequent transfusions. Specifically, first transfusion incidences of febrile non-haemolytic transfusion reactions (FNHTRs) to RBCs (0.43%) and allergic reactions to FFP (2.51%) were higher than on subsequent transfusions (RBCs: 0.23%, FFP: 1.65%). CONCLUSION There are risks of ATRs on the first transfusion as well as transfusions of patients with transfusion history.
Collapse
|
167
|
Shiomi A, Izumi K, Uenoyama A, Saito T, Saito N, Ohnuki H, Kato H, Kanatani M, Nomura S, Egusa H, Maeda T. Cyclic mechanical pressure-loading alters epithelial homeostasis in a three-dimensional in vitro oral mucosa model: clinical implications for denture-wearers. J Oral Rehabil 2014; 42:192-201. [PMID: 25472623 DOI: 10.1111/joor.12254] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/24/2014] [Indexed: 11/28/2022]
Abstract
Denture-wearing affects the quality and quantity of epithelial cells in the underlying healthy oral mucosa. The physiologic mechanisms, however, are poorly understood. This study aimed to compare histologic changes and cellular responses of an epithelial cell layer to cyclic mechanical pressure-loading mimicking denture-wearing using an organotypic culture system to develop a three-dimensional in vitro oral mucosa model (3DOMM). Primary human oral keratinocytes and fibroblasts were serially grown in a monolayer culture, and cell viability was measured under continuous cyclic mechanical pressure (50 kPa) for 7 days (cycles of 60 min on, 20 s off to degas and inject air). Upon initiation of an air-liquid interface culture for epithelial stratification, the cyclic pressure, set to the mode above mentioned, was applied to the 3DOMMs for 7 days. Paraffin-embedded 3DOMMs were examined histologically and immunohistochemically. In the monolayer culture, the pressure did not affect the viability of oral keratinocytes or fibroblasts. Few histologic changes were observed in the epithelial layer of the control and pressure-loaded 3DOMMs. Immunohistochemical examination, however, revealed a significant decrease in Ki-67 labelling and an increase in filaggrin and involucrin expression in the suprabasal layer of the pressure-loaded 3DOMMs. Pressure-loading attenuated integrin β1 expression and increased matrix metalloproteinase-9 activity. Incomplete deposition of laminin and type IV collagen beneath the basal cells was observed only in the pressure-loaded 3DOMM. Cyclic pressure-loading appeared to disrupt multiple functions of the basal cells in the 3DOMM, resulting in a predisposition towards terminal differentiation. Thus, denture-wearing could compromise oral epithelial homeostasis.
Collapse
|
168
|
Kito M, Yoshimura Y, Isobe K, Aoki K, Momose T, Suzuki S, Tanaka A, Sano K, Akahane T, Kato H. Clinical outcome of deep-seated atypical lipomatous tumor of the extremities with median-term follow-up study. Eur J Surg Oncol 2014; 41:400-6. [PMID: 25498358 DOI: 10.1016/j.ejso.2014.11.044] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Revised: 11/12/2014] [Accepted: 11/21/2014] [Indexed: 11/29/2022] Open
Abstract
AIMS There is no consensus on the best surgical treatment for deep-seated atypical lipomatous tumor (ALT) of the extremities; furthermore, the appropriate duration for follow-up observation remains unclear. We investigated clinical and functional median-term outcomes in the primary operations for ALT of the extremities in order to find its best treatment methods and observation periods. METHODS From 1996 to 2009, we diagnosed 41 patients with deep-seated ALT of the extremities. Wide resection was performed on 11 patients and marginal resection was performed on 30 patients. The minimum follow-up was 5 years (median, 8.5; range, 5-17.4). Patients were evaluated for their local recurrence, dedifferentiation, and post-operative function using the ISOLS/MSTS scoring system. RESULTS Recurrence and dedifferentiation rates were both 0% for the wide resection group, while the rates were 23% (7/30) and 3% (1/30) for the marginal resection group, respectively. Median duration before recurrence was 7.2 years (range, 4.0-14.2). Local recurrence-free survival rate was significantly higher in the wide resection group (P = 0.013). In the marginal resection group, 10% (3/30) of the cases showed residual tumor. The localization of these tumors was all intermuscular. The ISOLS/MSTS scores were 98% (range, 90-100) for wide resection and 99% (range, 93-100) for marginal resection, with no statistical difference (P = 0.694). No ALT-related deaths occurred during the observation period. CONCLUSIONS In addition to long-term (at least 8 years) of continuous observation, a wide resection is necessary in order to prevent recurrence, dedifferentiation, and residual tumor.
Collapse
|
169
|
Duflot D, Hoshino M, Limão-Vieira P, Suga A, Kato H, Tanaka H. BF3 valence and Rydberg states as probed by electron energy loss spectroscopy and ab initio calculations. J Phys Chem A 2014; 118:10955-66. [PMID: 25338148 DOI: 10.1021/jp509375y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this contribution we probe BF3 low-lying excited singlet states measured at 100 eV, 2.8° scattering angle and triplet states at 40 eV, 40° scattering angle, while sweeping the energy loss over the range 10.0-20.0 eV. The electronic state spectroscopy has been investigated and the assignments supported by quantum chemical calculations. This provides the first comprehensive investigation of all singlet and triplet excited electronic states of boron trifluoride up to the first ionization potential. A generalized oscillator strength analysis is employed to derive oscillator strength f0 value and integral cross sections (ICSs) from the corresponding differential cross sections (DCSs). The f0 value is compared with the optical oscillator strength (OOS) from photoabsorption, and the unscaled Born ICSs are then compared with relevant energy and binary-encounter and f-scaled Born cross section (BEf-scaling) results determined as a part of this investigation. The lowest n members of the Rydberg series have been assigned as converging to the lowest ionization energy limits of boron trifluoride and classified according to the magnitude of the quantum defects (δ).
Collapse
|
170
|
Kuo S, Zhou Y, Kim HM, Kato H, Kim RY, Bayar GR, Marcelo CL, Kennedy RT, Feinberg SE. Biochemical indicators of implantation success of tissue-engineered oral mucosa. J Dent Res 2014; 94:78-84. [PMID: 25348542 DOI: 10.1177/0022034514554225] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Real-time (RT) determination of the health of in vitro tissue-engineered constructs prior to grafting is essential for prediction of success of the implanted tissue-engineered graft. In addition, the US Food and Drug Administration requires specific release criteria in RT prior to the release of tissue-engineered devices for human use. In principle, assessing the viability and functionality of the cellular component can be achieved by quantifying the secretion of growth factors and chemokines of tissue-engineered constructs. Ex vivo-produced oral mucosa equivalents (EVPOMEs) were fabricated under thermally stressed conditions at 43 °C for 24 h to create a functionally compromised EVPOME. We used microchannel enzyme-linked immunosorbent assay to evaluate the functionality of the cellular component, oral keratinocytes, of stressed and unstressed EVPOMEs by measuring the release of vascular endothelial growth factor (VEGF), interleukin-8 (IL-8), human β-defensin 1 (hBD-1), and tissue inhibitor of metalloproteinase 1 and 2 (TIMP-1 and -2) into the spent medium, which was collected on the same day prior to graft implantation into severe combined immunodeficiency mice. Implanted EVPOMEs' histology on the seventh postimplantation day was used to correlate outcomes of grafting to secreted amounts of IL-8, hBD-1, VEGF, TIMP-1, and TIMP-2 from corresponding EVPOMEs. Our findings showed that significantly higher levels of IL-8, hBD-1, and TIMP-2 were secreted from controls than from thermally stressed EVPOMEs. We also found a direct correlation between secreted VEGF and IL-8 and blood vessel counts of implanted EVPOMEs. We concluded that measuring the constitutive release of these factors can be used as noninvasive predictors of healthy tissue-engineered EVPOMEs in RT, prior to their implantation.
Collapse
|
171
|
Oizumi H, Kato H, Endoh M, Suzuki J, Watarai H, Sadahiro M. 205 * THE MANAGEMENT OF BRONCHIAL STUMPS IN ANATOMICAL LUNG SEGMENTECTOMY. Interact Cardiovasc Thorac Surg 2014. [DOI: 10.1093/icvts/ivu276.205] [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
|
172
|
Hoshino M, Limão-Vieira P, Anzai K, Kato H, Cho H, Mogi D, Tanioka T, Ferreira da Silva F, Almeida D, Blanco F, García G, Ingólfsson O, Tanaka H. Elastic differential cross sections for C₄F₆ isomers in the 1.5-200 eV energy electron impact: similarities with six fluorine containing molecules and evidence of F-atom like scattering. J Chem Phys 2014; 141:124302. [PMID: 25273432 DOI: 10.1063/1.4895903] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
We report absolute elastic differential cross sections for electron interactions with the C4F6 isomers, hexafluoro-1,3-butadiene (1,3-C4F6), hexafluoro-2-butyne (2-C4F6), and hexafluorocyclobutene (c-C4F6). The incident electron energy range is 1.5-200 eV, and the scattered electron angular range for the differential measurements varies from 15° to 150°. In all cases the absolute scale of the differential cross section was set using the relative flow technique, with helium as the reference species. Atomic-like behaviour in these scattering systems is shown here for the first time, and is further investigated by comparing the elastic cross sections for the C4F6 isomers with other fluorinated molecules, such as SF6 and CnF6 (n = 2, 3, and 6). We note that for all the six-F containing molecules, the scattering process for electron energies above 30 eV is indistinguishable. Finally, we report results for calculations of elastic differential cross sections for electron scattering from each of these isomers, within an optical potential method and assuming a screened corrected independent atom representation. The level of agreement between these calculations and our measurements is found to be quite remarkable in all cases.
Collapse
|
173
|
Kato H, Nakamura A, Horie M. Acceleration of suspending single-walled carbon nanotubes in BSA aqueous solution induced by amino acid molecules. J Colloid Interface Sci 2014; 437:156-162. [PMID: 25313479 DOI: 10.1016/j.jcis.2014.09.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2014] [Revised: 09/02/2014] [Accepted: 09/09/2014] [Indexed: 02/04/2023]
Abstract
Single-walled carbon nanotube (SWCNT) suspensions in aqueous media were prepared using bovine serum albumin (BSA) and amino acid molecules. It was found that the amino acid molecules clearly decreased the time required for suspending the SWCNTs in BSA aqueous solutions. Dynamic light scattering measurements revealed that the particle sizes of the SWCNTs suspended in aqueous media with and without amino acid molecules were approximately the same and stable for more than one week. The zeta potential values of the BSA molecules in pure water and amino acid aqueous solutions were different, and these values were also reflected in the surface potential of colloidal SWCNT particles in the corresponding aqueous media, thus inducing different dispersibility of SWCNTs in aqueous media. Pulsed field gradient nuclear magnetic resonance measurements showed that the interactions between the SWCNTs and the amino acid molecules are weak and comprise chemical exchange interactions and not bonding interactions. Amino acid molecules play a fascinating role in the preparation of SWCNT suspensions in BSA aqueous media by increasing electrostatic repulsive interactions between SWCNT colloidal particles and consequently enhancing the dispersion ability of the BSA molecules.
Collapse
|
174
|
Yamaue H, Kubota T, Tanigawa N, Ohyama S, Sakuramoto S, Inada T, Kitagawa Y, Ochiai T, Terashima M, Gotoh M, Yasuda Y, Hara A, Kato H, Matsuyama J, Kodera Y, Nashimoto A, Yamaguchi T, Takeuchi M, Fujii M, Nakajima T. Exploratory Phase Ii Trial Assessing Relevance of in Vitro Chemosensitivity Test As a Predictor of Survival in Gastric Cancer Undergoing Adjuvant Chemotherapy (Jaccro-Gc04). Ann Oncol 2014. [DOI: 10.1093/annonc/mdu334.8] [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
|
175
|
Takahashi M, Watanabe K, Akabane H, Ichinokawa K, Ogasawara K, Kato H, Konishi K, Suzuki Y, Tanaka K, Narita Y, Hata T, Hosoda M, Yamamoto M. Clinical Study Evaluating the Safety, Tolerability and Efficacy of Weekly Nab-Paclitaxel Dosed at 100 Mg/M2 for Metastatic Breast Cancer : Hbcc1101 Trial. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu329.22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
176
|
Uenoyama A, Izumi K, Shiomi A, Saito N, Saito T, Ohnuki H, Kato H, Ajima H, Takagi R, Maeda T. Effects of C-Xylopyranoside Derivative on Expression of the Basement Membrane Related Molecules of Oral Keratinocytes and Fibroblasts. J Oral Maxillofac Surg 2014. [DOI: 10.1016/j.joms.2014.06.338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
177
|
Todo Y, Okamoto K, Minobe S, Kato H. Clinical Significance of Surgical Staging for Obese Women with Endometrial Cancer: A Retrospective Analysis in a Japanese Cohort. Jpn J Clin Oncol 2014; 44:903-9. [DOI: 10.1093/jjco/hyu106] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
178
|
Matsumoto T, Maeno Y, Kato H, Seko-Nakamura Y, Monma-Ohtaki J, Ishiba A, Nagao M, Aoki Y. 5-hydroxytryptamine- and dopamine-releasing effects of ring-substituted amphetamines on rat brain: a comparative study using in vivo microdialysis. Eur Neuropsychopharmacol 2014; 24:1362-70. [PMID: 24862256 DOI: 10.1016/j.euroneuro.2014.04.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2012] [Revised: 04/06/2014] [Accepted: 04/27/2014] [Indexed: 10/25/2022]
Abstract
Using in vivo microdialysis, a comparative study was conducted to examine the effects of amphetamine-related compounds (methamphetamine, MAP; 3,4-methylenedioxymethamphetamine, MDMA; p-methoxyamphetamine, PMA; p-methoxymethamphetamine, PMMA; 4-methylthioamphetamine, 4-MTA; 3,4,5-trimethoxyamphetamine, TMA; 2,5-dimethoxy-4-iodoamphetamine, DOI) on extracellular levels of serotonin (5-HT) and dopamine (DA). Dialysates were assayed using HPLC equipped with electrochemical detector following i.p. administration with each drug at a dose of 5 mg/kg. MAP was found to drastically and rapidly increase 5-HT and DA levels (870% and 1460%, respectively). PMA, PMMA, and 4-MTA slightly increased DA levels (150-290%) but remarkably increased 5-HT levels (540-900%). In contrast, TMA and DOI caused no detectable changes in levels of both monoamines. We observed that the potent DA-releasing action of MAP was remarkably decreased by introduction of methoxy or methylthio group at the para position (MAP vs. PMMA or 4-MTA), but introduction of two additional adjacent methoxy groups into PMA totally abolished its 5-HT-/DA-releasing action (PMA vs. TMA). In addition, para-mono-substituted compounds inhibited both monoamine oxidase (MAO) enzymes more strongly than other compounds; PMA and 4-MTA exhibited submicromolar IC50 values for MAO-A. On the other hand, TMA scarcely affected the activity of both MAO enzymes as well as extracellular levels of 5-HT and DA. In this comparative study, MDMA, PMA, and 4-MTA functioned similar to PMMA, a typical empathogen; these findings therefore could be helpful in clarifying the psychopharmacological properties of amphetamine-related, empathogenic designer drugs.
Collapse
|
179
|
Daly K, De Lima H, Kato H, Sordillo EM, Convit J, Reyes-Jaimes O, Zerpa O, Paniz-Mondolfi AE. Intermediate cutaneous leishmaniasis caused byLeishmania (Viannia) braziliensissuccessfully treated with fluconazole. Clin Exp Dermatol 2014; 39:708-12. [DOI: 10.1111/ced.12359] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/26/2014] [Indexed: 11/29/2022]
|
180
|
Kato H, Duarte S, Baber J, Isaji S, Busuttil R, Coito A. Matrix Metalloproteinase-9 Inhibition Sheltered the Hepatocyte Growth Factor Receptor, c-Met, From Proteolytic Degradation in Marginal Steatotic Livers After Ischemia and Reperfusion Injury. Transplantation 2014. [DOI: 10.1097/00007890-201407151-00916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
181
|
Sugiyama A, Kato H, Nishioka T, Oda J. Overexpression and Purification of Asparagine Synthetase fromEscherichia coli. Biosci Biotechnol Biochem 2014; 56:376-9. [PMID: 1369484 DOI: 10.1271/bbb.56.376] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Overexpression of the asnA gene from Escherichia coli K-12 coding for asparagine synthetase (EC 6.3.1.1) was achieved with a plasmid, pUNAd37, a derivative of pUC18, in E. coli. The plasmid was constructed by optimizing a DNA sequence between the promoter and the ribosome binding region. The enzyme, comprising ca. 15% of the total soluble protein in the E. coli cell, was readily purified to apparent homogeneity by DEAE-Cellulofine and Blue-Cellulofine column chromatographies. The amino-terminal sequence, amino acid composition, and molecular weight of the purified protein agreed with the predicted values based on the DNA sequence of the gene. Furthermore the native molecular weight measured by gel filtration confirmed that asparagine synthetase exists as a dimer of identical subunits.
Collapse
|
182
|
Kannan V, Misra BK, Kapadia A, Bajpai R, Deshpande S, Almel S, Sankhe M, Desai K, Shaikh M, Anand V, Kannan A, Teo WY, Ross J, Bollo R, Seow WT, Tan AM, Kang SG, Kim DS, Li XN, Lau CC, Mohila CA, Adesina A, Su J, Ichimura K, Fukushima S, Matsushita Y, Tomiyama A, Niwa T, Suzuki T, Nakazato Y, Mukasa A, Kumabe T, Nagane M, Iuchi T, Mizoguchi M, Tamura K, Sugiyama K, Nakada M, Kanemura Y, Yokogami K, Matsutani M, Shibata T, Nishikawa R, Takami H, Fukushima S, Fukuoka K, Yanagisawa T, Nakamura T, Arita H, Narita Y, Shibui S, Nishikawa R, Ichimura K, Matsutani M, Sands S, Guerry W, Kretschmar C, Donahue B, Allen J, Matsutani M, Nishikawa R, Kumabe T, Sugiyama K, Nakamura H, Sawamura Y, Fujimaki T, Hattori E, Arakawa Y, Kawabata Y, Aoki T, Miyamoto S, Kagawa N, Hirayama R, Fujimoto Y, Chiba Y, Kinoshita M, Takano K, Eino D, Fukuya S, Nakanishi K, Yamamoto F, Hashii Y, Hashimoto N, Hara J, Yoshimine T, Murray M, Bartels U, Nishikawa R, Fangusaro J, Matsutani M, Nicholson J, Sumerauer D, Zapotocky M, Churackova M, Cyprova S, Zamecnik J, Malinova B, Kyncl M, Tichy M, Stary J, Lassen-Ramshad Y, von Oettingen G, Agerbaek M, Ohnishi T, Kohno S, Inoue A, Ohue S, Kohno S, Iwata S, Inoue A, Ohue S, Kumon Y, Ohnishi T, Acharya S, DeWees T, Shinohara E, Perkins S, Kato H, Fuji H, Nakasu Y, Ishida Y, Okawada S, Yang Q, Guo C, Chen Z, Alapetite C, Faure-Conter C, Verite C, Pagnier A, Laithier V, Entz-Werle N, Gorde-Grosjean S, Palenzuela G, Lemoine P, Frappaz D, Nguyen HA, Bui L, Ngoc, Cerbone M, Ederies A, Losa L, Moreno C, Sun K, Spoudeas HA, Nakano Y, Okada K, Kosaka Y, Nagashima T, Hashii Y, Kagawa N, Soejima T, Osugi Y, Sakamoto H, Hara J, Nicholson J, Alapetite C, Kortmann RD, Garre ML, Ricardi U, Saran F, Frappaz D, Calaminus G, Muda Z, Menon B, Ibrahim H, Rahman EJA, Muhamad M, Othman IS, Thevarajah A, Cheng S, Kilday JP, Laperriere N, Drake J, Bouffet E, Bartels U, Sakamoto H, Matsusaka Y, Watanabe Y, Umaba R, Hara J, Osugi Y, Alapetite C, Ruffier-Loubiere A, De Marzi L, Bolle S, Claude L, Habrand JL, Brisse H, Frappaz D, Doz F, Bourdeaut F, Dendale R, Mazal A, Fournier-Bidoz N, Fujimaki T, Fukuoka K, Shirahata M, Suzuki T, Adachi JI, Mishima K, Wakiya K, Matsutani M, Nishikawa R, Fukushima S, Yamashita S, Kato M, Nakamura H, Takami H, Suzuki T, Yanagisawa T, Mukasa A, Kumabe T, Nagane M, Sugiyama K, Tamura K, Narita Y, Shibui S, Shibata T, Ushijima T, Matsutani M, Nishikawa R, Ichimura K, Consortium IGA, Calaminus G, Kortmann RD, Frappaz D, Alapetite C, Garre ML, Ricardi U, Saran FH, Nicholson J, Calaminus G, Kortmann RD, Frappaz D, Alapetite C, Garre ML, Ricardi U, Saran FH, Nicholson J, Czech T, Nicholson J, Frappaz D, Kortmann RD, Alapetite C, Garre ML, Ricardi U, Saran F, Calaminus G, Hayden J, Bartels U, Calaminus G, Joseph R, Nicholson J, Hale J, Lindsay H, Kogiso M, Qi L, Yee TW, Huang Y, Mao H, Lin F, Baxter P, Su J, Terashima K, Perlaky L, Lau C, Parsons D, Chintagumpala M, Li XAN, Osorio D, Vaughn D, Gardner S, Mrugala M, Ferreira M, Keene C, Gonzalez-Cuyar L, Hebb A, Rockhill J, Wang L, Yamaguchi S, Burstein M, Terashima K, Ng HK, Nakamura H, He Z, Suzuki T, Nishikawa R, Natsume A, Terasaka S, Dauser R, Whitehead W, Adesina A, Sun J, Munzy D, Gibbs R, Leal S, Wheeler D, Lau C, Dhall G, Robison N, Judkins A, Krieger M, Gilles F, Park J, Lee SU, Kim T, Choi Y, Park HJ, Shin SH, Kim JY, Robison N, Dhir N, Khamani J, Margol A, Wong K, Britt B, Evans A, Nelson M, Grimm J, Finlay J, Dhall G. GERM CELL TUMOURS. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
183
|
Nagai Y, Hashimoto E, Oikawa R, Asai S, Terashima Y, Nakamura Y, Sasaki Y, Tsukiyama H, Fukuda H, Ohshige T, Kato H, Ohta A, Tanaka Y. Differing effects of liraglutide on gastric emptying in Japanese patients with type 2 diabetes. Diabetes Obes Metab 2014; 16:573-6. [PMID: 24320758 DOI: 10.1111/dom.12247] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2013] [Revised: 05/10/2013] [Accepted: 12/02/2013] [Indexed: 11/30/2022]
Abstract
This study was performed to clarify the influence of liraglutide on gastric emptying in Japanese patients with type 2 diabetes. In 16 patients, the [(13) C]-acetate breath test was performed to compare gastric emptying before and after liraglutide treatment. We found two patterns of response, with gastric emptying being delayed by liraglutide in seven patients (delayers) and not delayed in nine patients (non-delayers). The mean increase of the maximum gastric emptying time was 31 ± 4 min (p < 0.01 vs. baseline) in the delayers, while it was only 2 ± 3 min (p = 0.60 vs. baseline) in the non-delayers. The delayers showed a greater early decrease of AUC-PG from 0 to 60 min, despite no increase of the plasma insulin level compared with non-delayers. In conclusion, the effect of liraglutide treatment on gastric emptying shows heterogeneity, and patients can be classified as delayers or non-delayers.
Collapse
|
184
|
Vanikar AV, Trivedi HL, Dave SD, Kute VB, Rawal MN, Patel HV, Gumber MR, Afghahi H, Pirouzifard M, Svensson AM, Eliasson B, Svensson MK, Dumann K, Horrmann B, Lammert A, Rheinberger M, Gorski M, Kramer BK, Heid IM, Boger CA, Demirtas L, Akbas EM, Timuroglu A, Ozcicek F, Turkmen K, Fernandez-Fernandez B, Sanchez-Nino MD, Martin-Cleary C, Izquierdo MC, Elewa U, Ortiz A, Petrica L, Vlad A, Gluhovschi G, Gadalean F, Dumitrascu V, Gluhovschi C, Velciov S, Bob F, Vlad D, Popescu R, Petrica M, Jianu DC, Milas O, Izvernari O, Ursoniu S, Makino Y, Konoshita T, Nyumura I, Babazono T, Yoshida N, Uchigata Y, Handisurya A, Kerscher C, Tura A, Werzowa J, Heinzl H, Ristl R, Kautzky-Willer A, Pacini G, Saemann M, Schmidt A, Halbesma N, Metcalfe W, Bulum T, Prka in I, Blaslov K, Zibar K, Duvnjak L, Idorn T, Knop FK, Jorgensen MB, Christensen M, Holst JJ, Hornum M, Feldt-Rasmussen B, Naess H, Hartmann A, Jenssen TG, Holdaas H, Horneland R, Grzyb K, Bitter J, Midtvedt K, Yoshida N, Babazono T, Uchigata Y, Timar R, Gluhovschi G, Gadalean F, Velciov S, Petrica L, Timar B, Gluhovschi C, Soro-Paavonen A, Fleming T, Forsblom C, Gordin D, Tolonen N, Harjutsalo V, Nawroth PP, Groop PH, Tsuda A, Ishimura E, Uedono H, Yasumoto M, Nakatani S, Ichii M, Ohno Y, Ochi A, Mori K, Fukumoto S, Emoto M, Inaba M, Rheinberger M, Hormann B, Lammert A, Dumann K, Gorski M, Heid IM, Kramer BK, Boger CA, Siddaramaiah NH, Tez DK, Linker NJ, Bilous M, Winship S, Marshall SM, Bilous RW, Lampropoulou IT, Papagianni A, Stangou M, Didangelos T, Iliadis F, Efstratiadis G, Esposito P, Debarbieri G, Mereu R, Ditoro A, Montagna F, Groop PH, Bernardi L, Dal Canton A, Garland JS, Holden R, Morton R, Ross R, Adams M, Pruss C, Akbas EM, Demirtas L, Timuroglu A, Ozcicek F, Turkmen K, Bulum T, Prka in I, Blaslov K, Zibar K, Duvnjak L, Theodoridis M, Panagoutsos S, Bounta T, Roumeliotis S, Kantartzi K, Pouloutidis G, Passadakis P, Polaina Rusillo M, Borrego Utiel FJ, Ortega Anguiano S, Liebana Canada A, Gaber EW, Abdel Rehim WM, Ibrahim NA, Mahmoud BF, Silva AP, Fragoso A, Tavares N, Silva C, Santos N, Camacho A, Neves P, Rodriguez R, Porrini E, Gonzalez-Rinne A, De Vries A, Torres A, Salido E, Kato S, Makino H, Uzu T, Koya D, Nishiyama A, Imai E, Ando M, Jorgensen MB, Knop FK, Idorn T, Holst JJ, Hornum M, Feldt-Rasmussen B, Vaduva C, Popa S, Mitrea A, Mota M, Mota E, Theodoridis M, Panagoutsos S, Roumeliotis S, Bounta T, Kriki P, Roumeliotis A, Passadakis P, Ogawa T, Okazaki S, Hatano M, Hara H, Inamura M, Kiba T, Iwashita T, Shimizu T, Tayama Y, Kanozawa K, Kato H, Matsuda A, Hasegawa H, Elewa U, Fernandez B, Egido J, Ortiz A, Rottembourg J, Guerin A, Diaconita M, Dansaert A, Chakraborty J, Prabhu R, Nagaraju SP, Bairy M, Satyamoorthy K, Kosuru S, Parthasarathy R, Tomilina N, Zhilinskaya T, Stolyarevich E, Silva AP, Fragoso A, Guilherme P, Silva C, Santos N, Rato F, Camacho A, Neves P, Pasko N, Strakosha A, Toti F, Dedej T, Marku N, Petrela E, Zekollari E, Kacorri V, Thereska N, Roumeliotis SK, Roumeliotis AK, Theodoridis M, Tavridou A, Panagoutsos S, Passadakis P, Vargemezis V, Kim IY, Lee SB, Lee DW, Kim MJ, Shin MJ, Rhee H, Yang BY, Song SH, Seong EY, Kwak IS, Celebi K, Sengul E, Cekmen MB, Yilmaz A, Sonikian M, Dona A, Skarakis J, Miha T, Trompouki S, Karaitianou A, Spiliopoulou C, Dimas GG, Iliadis FS, Tegos TJ, Spiroglou SG, Kanellos IE, Fotiadis SD, Didaggelos TP, Savopoulos CG, Hatzitolios AI, Grekas DM, Hsu YH, Huang MC, Chang HY, Shin SJ, Wahlqvist ML, Chang YL, Hsu KC, Hsu CC, Miarka P, Grabowska-Polanowska B, Faber J, Skowron M, Pietrzycka A, Walus-Miarka M, Sliwka I, Sulowicz W. DIABETES CLINICAL. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
185
|
Saito T, Izumi K, Shiomi A, Uenoyama A, Ohnuki H, Kato H, Terada M, Nozawa-Inoue K, Kawano Y, Takagi R, Maeda T. Zoledronic acid impairs re-epithelialization through down-regulation of integrin αvβ6 and transforming growth factor beta signalling in a three-dimensional in vitro wound healing model. Int J Oral Maxillofac Surg 2014; 43:373-80. [DOI: 10.1016/j.ijom.2013.06.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2013] [Revised: 06/14/2013] [Accepted: 06/17/2013] [Indexed: 11/16/2022]
|
186
|
Horie M, Nishio K, Kato H, Endoh S, Fujita K, Nakamura A, Kinugasa S, Hagihara Y, Yoshida Y, Iwahashi H. Evaluation of cellular influences caused by calcium carbonate nanoparticles. Chem Biol Interact 2014; 210:64-76. [DOI: 10.1016/j.cbi.2013.12.013] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Revised: 12/11/2013] [Accepted: 12/30/2013] [Indexed: 11/17/2022]
|
187
|
Horie M, Nishio K, Kato H, Endoh S, Fujita K, Nakamura A, Hagihara Y, Yoshida Y, Iwahashi H. Evaluation of cellular effects of silicon dioxide nanoparticles. Toxicol Mech Methods 2014; 24:196-203. [PMID: 24392881 DOI: 10.3109/15376516.2013.879505] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Silica nanoparticles (nSiO2s) are an important type of manufactured nanoparticles. Although there are some reports about the cytotoxicity of nSiO2, the association between physical and chemical properties of nSiO2s and their cellular effects is still unclear. In this study, we examined the correlation between the physiochemical properties and cellular effects of three kinds of amorphous nSiO2s; sub-micro-scale amorphous SiO2, and micro-scale amorphous and crystalline SiO2 particles. The SiO2 particles were dispersed in culture medium and applied to HaCaT human keratinocytes and A549 human lung carcinoma cells. nSiO2s showed stronger protein adsorption than larger SiO2 particles. Moreover, the cellular effects of SiO2 particles were independent of the particle size and crystalline phase. The extent of cell membrane damage and intracellular ROS levels were different among nSiO2s. Upon exposure to nSiO2s, some cells released lactate dehydrogenase (LDH), whereas another nSiO2 did not induce LDH release. nSiO2s caused a slight increase in intracellular ROS levels. These cellular effects were independent of the specific surface area and primary particle size of the nSiO2s. Additionally, association of solubility and protein adsorption ability of nSiO2 to its cellular effects seemed to be small. Taken together, our data suggest that nSiO2s do not exert potent cytotoxic effects on cells in culture, especially compared to the effects of micro-scale SiO2 particles. Further studies are needed to address the role of surface properties of nSiO2s on cellular processes and cytotoxicity.
Collapse
|
188
|
Kato H, Nakamura A, Horie M. Behavior of surfactants in aqueous dispersions of single-walled carbon nanotubes. RSC Adv 2014. [DOI: 10.1039/c3ra45181j] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
|
189
|
Yamaguchi T, Ichikawa K, Sano Y, Sano W, Ikumoto T, Iwatate M, Tomita S, Kato H, Fujimori T. Education and Imaging. Gastrointestinal: sessile serrated adenoma/polyps with a minute T1 colorectal carcinoma. J Gastroenterol Hepatol 2014; 29:1. [PMID: 24354988 DOI: 10.1111/jgh.12465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
|
190
|
Tensho K, Aoki T, Morioka S, Narita N, Kato H, Saito N. Snapping pes syndrome after total knee arthroplasty. Knee Surg Sports Traumatol Arthrosc 2014; 22:192-4. [PMID: 23263260 DOI: 10.1007/s00167-012-2352-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2012] [Accepted: 12/10/2012] [Indexed: 11/30/2022]
Abstract
Snapping syndrome rarely occurs at the knee joint. This is the first report of snapping pes syndrome after total knee arthroplasty. Surgeons should be aware of the presence of such a case and pay attention to the fact that snapping symptoms could be caused by a residual bony prominence and a change in alignment after total knee arthroplasty.
Collapse
|
191
|
Uchiyama S, Itsubo T, Nakamura K, Fujinaga Y, Sato N, Imaeda T, Kadoya M, Kato H. Effect of early administration of alendronate after surgery for distal radial fragility fracture on radiological fracture healing time. Bone Joint J 2013; 95-B:1544-50. [PMID: 24151277 DOI: 10.1302/0301-620x.95b11.31652] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
This multicentre prospective clinical trial aimed to determine whether early administration of alendronate (ALN) delays fracture healing after surgical treatment of fractures of the distal radius. The study population comprised 80 patients (four men and 76 women) with a mean age of 70 years (52 to 86) with acute fragility fractures of the distal radius requiring open reduction and internal fixation with a volar locking plate and screws. Two groups of 40 patients each were randomly allocated either to receive once weekly oral ALN administration (35 mg) within a few days after surgery and continued for six months, or oral ALN administration delayed until four months after surgery. Postero-anterior and lateral radiographs of the affected wrist were taken monthly for six months after surgery. No differences between groups was observed with regard to gender (p = 1.0), age (p = 0.916), fracture classification (p = 0.274) or bone mineral density measured at the spine (p = 0.714). The radiographs were assessed by three independent assessors. There were no significant differences in the mean time to complete cortical bridging observed between the ALN group (3.5 months (SE 0.16)) and the no-ALN group (3.1 months (SE 0.15)) (p = 0.068). All the fractures healed in the both groups by the last follow-up. Improvement of the Quick-Disabilities of the Arm, Shoulder and Hand (QuickDASH) score, grip strength, wrist range of movement, and tenderness over the fracture site did not differ between the groups over the six-month period. Based on our results, early administration of ALN after surgery for distal radius fracture did not appear to delay fracture healing times either radiologically or clinically.
Collapse
|
192
|
Yasojima H, Sugie T, Masuda N, Kinoshita T, Sawada T, Yamauchi A, Kuroi K, Taguchi T, Bando H, Yamashiro H, Lee T, Shinkura N, Kato H, Ikeda T, Yoshimura K, Tada H, Ueyama H, Yokohashi Y, Toi M. Abstract P1-01-03: Interim analysis of the validation study on the clinical usefulness of the ICG fluorescence method for detecting sentinel lymph nodes in early breast cancer compared with the RI method (fICG-BR02). Cancer Res 2013. [DOI: 10.1158/0008-5472.sabcs13-p1-01-03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Sentinel lymph node (SLN) biopsy guided by radioisotope (RI), blue dye or in combination methods is common. A high identification rate is reported for the RI-guided method. On the other hand, it has the demerits of radiation exposure, being expense, and it can only be used in a radiation-controlled area. The blue dye method, however, is safe and inexpensive, but the identification rate is lower compared with the RI method and requires training. The indocyanine green (ICG) fluorescent method involves the application of the fluorescing property. Lymph flow can be traced from outside the body with a photodynamic eye (PDE) camera simultaneously with an operation procedure. The ICG method is safe, inexpensive and requires little training, therefore its use will be widely permitted in any general hospitals. Recently, based on several retrospective clinical trials, the identification rate with the ICG fluorescent method has been reported to be equal to or greater than the RI method. The purpose of this multicenter study is to prospectively assess the diagnostic performance of SLN biopsy using the ICG fluorescence technique compared with RI.
Materials and methods: In this validation study, the patients aged from 20 to 75 years-old with operable primary invasive breast cancer (cT1c-2N0M0) have been nominated and required the written informed consent.
All candidates underwent SLN biopsy using the combined methods with RI and ICG fluorescence. The target sample size was 840 patients to evaluate the sensitivity of ICG method as a primary endpoint, and after 200 patients were enrolled we analyzed the identification rate and the SLN-positive rate of the RI and ICG methods respectively as the interim analysis planned beforehand.
Results: Two hundred eligible patients were enrolled in this study from May 2011 to February 2012. Their median age was 53.0 years (range: 27-74 years). The number of patients with cT1c was 106 and that with cT2 was 94. The identification rate of the RI and the ICG method was 97% (194/200) and 96% (192/200) respectively. Of the 194 patients that were identified with the RI method, 186 (95.9%) were also identified with the ICG method. ICG identified 6 patients that were not identified by RI. On the other hand, RI identified 8 patients that were not identified by ICG. The SLN-positive rate was 25.5% (51/200). This rate was higher than we expected. Of the 51 patients with positive metastatic lymph nodes, 23 patients (21.7%) had cT1c breast cancer and 28 (29.8%) had cT2 breast cancer. The positive rate of the first SLN was 23.5% (47/200) and tumor cells skipped to the second or further tier in four cases (2%).
Conclusions: The ICG-guided SLN biopsy procedure achieved a high identification rate almost equal to that with the RI method. Using this combination method, the identification rate was 100%. We will assess the sensitivity and the additive effect of combining the ICG fluorescence method with the RI method, etc., when all 840 patients have been enrolled (UMIN000005167).
Citation Information: Cancer Res 2013;73(24 Suppl): Abstract nr P1-01-03.
Collapse
|
193
|
Niwa H, Kato H, Hobo S, Kinoshita Y, Ueno T, Katayama Y, Hariu K, Oku K, Senoh M, Kuroda T, Nakai K. Postoperative Clostridium difficile infection with PCR ribotype 078 strain identified at necropsy in five Thoroughbred racehorses. Vet Rec 2013; 173:607. [PMID: 24336792 DOI: 10.1136/vr.101960] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Clostridium difficile is an important cause of acute enterocolitis in horses. We describe five cases of C difficile infection occurring postoperatively in Thoroughbred racehorses. Following diarrhoea or colic accompanied by a marked increase in packed cell volume (to ≥60 per cent) and leucopenia (≤4000 cells/μl) within two to four days after surgery in all five horses, four of them died or were euthanased because of colitis or severe diarrhoea. In these four horses, necrotising entero-typhlo-colitis was revealed by postmortem examination, and C difficile was recovered from the contents of the small and/or large intestine. The remaining horse was euthanased because of marked decline in general condition and the presence of a lung abscess, from which C difficile was isolated. The horse had had severe postoperative diarrhoea before the onset of respiratory disorder; laboratory tests for C difficile were not performed on the faeces. All C difficile isolates were toxin-A-positive, toxin-B-positive and actin-specific ADP-ribosyltransferase (CDT)-positive. The isolates were indistinguishable by pulsed field gel electrophoresis analysis, PCR ribotyping, and slpA sequence typing, and the slpA sequences and PCR ribotype patterns were identical to those of known PCR type 078. This case sequence might have been healthcare-associated infection, although there was about a four-month interval between each disease onset.
Collapse
|
194
|
Kato H, Onishi Y, Nakajima S, Okitsu Y, Fukuhara N, Fujiwara T, Yamada-Fujiwara M, Kameoka J, Ishizawa K, Harigae H. Significant improvement of Takayasu arteritis after cord blood transplantation in a patient with myelodysplastic syndrome. Bone Marrow Transplant 2013; 49:458-9. [DOI: 10.1038/bmt.2013.198] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
|
195
|
Kurosaki R, Muramatsu Y, Kato H, Araki T. Protective effect of pitavastatin, a 3-hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA) reductase inhibitor, on ischemia-induced neuronal damage. Neurol Res 2013; 26:684-91. [PMID: 15327760 DOI: 10.1179/016164104225014102] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
We investigated the neuroprotective effects of a novel 3-hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA) reductase inhibitor (pitavastatin) on ischemic neuronal damage in gerbils using immunohistochemistry. The animals were allowed to survive for 14 days after 5 min of ischemia induced by bilateral occlusion of the common carotid arteries. Five days after ischemia, severe neuronal cell loss was observed in the hippocampal CA1 sector. Prophylactic treatment with pitavastatin dose-dependently prevented the hippocampal CA1 neuronal cell loss 5 days after ischemia. Immunohistochemical study did not show the change of nNOS and iNOS expression in the hippocampus except for, in a few regions, up to 1 day after ischemia. Thereafter, the expression of iNOS was observed in the hippocampal CA1 sector 5 and 14 days after ischemia. In contrast, the expression of nNOS and eNOS gradually decreased in the hippocampal CA1 sector up to 14 days after ischemia. Prophylactic treatment with pitavastatin also prevented the expression of iNOS and the decrease of eNOS expression and the number of nNOS-positive cells in the hippocampal CA1 sector 5 days after ischemia. However, prophylactic treatment with pitavastatin at a dose of 10 mg kg(-1) did not change the immunoreactivity of iNOS and nNOS in the hippocampus at an early phase after ischemia. In contrast, this drug prevented the reduction of eNOS immunoreactivity in the hippocampal CA1 neurons at an early phase after ischemia. These findings demonstrate that the HMG-CoA reductase inhibitor pitavastatin can protect hippocampal CA1 neurons after transient forebrain ischemia through up-regulation of eNOS expression in this region. Thus pharmacological modulation of eNOS expression may offer a novel therapeutic strategy for cerebral ischemic stroke.
Collapse
|
196
|
Ema M, Naya M, Horimoto M, Kato H. Developmental toxicity of diesel exhaust: A review of studies in experimental animals. Reprod Toxicol 2013; 42:1-17. [DOI: 10.1016/j.reprotox.2013.06.074] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2012] [Revised: 05/22/2013] [Accepted: 06/25/2013] [Indexed: 10/26/2022]
|
197
|
Hoshino M, Murai H, Kato H, Brunger MJ, Itikawa Y, Tanaka H. Electron impact excitation of the low-lying 3s[3/2]1 and 3s′[1/2]1 levels in neon for incident energies between 20 and 300 eV. J Chem Phys 2013; 139:184301. [DOI: 10.1063/1.4829056] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
198
|
Togashi Y, Arao T, Kato H, Matsumoto K, Terashima M, Hayashi H, Fujita Y, Yasuda T, Shiozaki H, Nishio K. ORAOV1 is Amplified in Esophageal Squamous Cell Cancer and Related to Tumor Growth and Poorly Differentiated Tumor. Ann Oncol 2013. [DOI: 10.1093/annonc/mdt459.131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
199
|
Zhu J, Kato H, Fu Y, Foreman C, Davey L, Van Arsdell G, Weisel R, Honjo O. A Pre-Clinical Animal Model of Mechanical Circulatory Support for Failing Single Ventricle Physiology: A Pilot Study. Can J Cardiol 2013. [DOI: 10.1016/j.cjca.2013.07.347] [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] Open
|
200
|
Kato H, Oizumi H, Nakamura M, Ota H, Inoue T, Watarai H, Sadahiro M. 167 * THE USEFULNESS OF THREE-DIMENSIONAL COMPUTED TOMOGRAPHY SIMULATION FOR PORT-ACCESS THORACOSCOPIC SURGERY IN CHILDREN AND ADOLESCENTS. Interact Cardiovasc Thorac Surg 2013. [DOI: 10.1093/icvts/ivt372.167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|