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Tanaka S, Kawamoto A, Yamaguchi K, Yamawaki M, Mohri H, Terai T, Takahashi Y. Adsorption and Exchange Reaction of Hydrogen Isotopes on Solid Breeding Materials. ACTA ACUST UNITED AC 2017. [DOI: 10.13182/fst88-a25235] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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127
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Endo A, Okada T, Kagawa Y, Pak M, Ito S, Ouchi T, Watanabe N, Yamaguchi K, Yoshitomi H, Tanabe K. 5968Comparison of the low-density lipoprotein cholesterol target value and the preventive effect of statins in elderly patients and younger patients. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.5968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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128
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Samejima T, Yamaguchi K, Iwata H, Morikawa N, Ikada Y. Gelatin Density Gradient for Isolation of Islets of Langerhans. Cell Transplant 2017; 7:37-45. [PMID: 9489761 DOI: 10.1177/096368979800700106] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Isolation of islets of Langerhans (islets) has been performed by means of collagenase digestion of the pancreatic tissue combined with density gradient separation of islets from unwanted exocrine tissues. An enormous number of islets are necessary for clinical islet transplantation. The density gradient used for isolation of a large number of islets should satisfy several requirements in addition to those for the conventional density gradients, such as high viscosity for creating fine interfaces with a large area, easy sterilization, and low cost. This study is concerned with the development of a new density gradient made of low-molecular-weight gelatin. We isolated islets from the hamster pancreatic tissue using the gelatin density gradients. The yield and purity of islet and its insulin release function were compared with those of islets isolated using Ficoll and Ficoll-Conray density gradients that have been conventionally used. The new gelatin density gradient can separate islets from the unwanted exocrine tissue as effectively as the Ficoll density gradient and more effectively than the Ficoll-Conray density gradients. The islets collected using the gelatin gradient retain ability of insulin release increase in response to glucose stimulation, similar to those isolated by the Ficoll-Conray gradient and more than those collected by the Ficoll gradient. In addition, the gelatin effectively inhibited enzyme activities, that is, collagenase and proteolytic enzymes released from the exocrine tissue, and thus it can inhibit overdigestion of islets during their density gradient isolation. The gelatin gradient satisfies most of the additional requirements for islet isolation from the pancreatic tissue of large animals mentioned above. Although several factors, such as molecular weight of gelatin, osmolality of the gradient, and centrifugal conditions, still remain to be optimized, our results suggest that the gelatin gradient has potentiality to isolate islets from the pancreatic tissue of a large animal.
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Okada R, Muro S, Eguchi K, Yagi K, Nasu H, Yamaguchi K, Miwa K, Akita K. The extended bundle of the tensor veli palatini: Anatomic consideration of the dilating mechanism of the Eustachian tube. Auris Nasus Larynx 2017. [PMID: 28625531 DOI: 10.1016/j.anl.2017.05.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
OBJECTIVE The aim of this study was to analyze the topographical structures of the muscles surrounding the Eustachian tube. MATERIALS AND METHODS We conducted macroscopic and histological studies of 24 halves of 12 heads from Japanese cadavers. RESULTS The main findings were as follows: 1) the infero-lateral muscle bundles of the tensor veli palatini didn't turn medially at the pterygoid hamulus but were distributed laterally and continuous with the buccinator; 2) the tensor veli palatini attached laterally to the membranous part of the Eustachian tube; 3) the superior pharyngeal constrictor was not only adjacent to the buccinator at the pterygomandibular raphe but also had muscular continuation with it laterally and 4) some bundles of the superior pharyngeal constrictor adhered with the palatine aponeurosis. CONCLUSION We believe that the cooperation of the muscles contributes to the dilating mechanism of the Eustachian tube, due to the complex topographical structures of the surrounding muscles: the tensor veli palatini, the levator veli palatini, the superior pharyngeal constrictor and the buccinator.
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Yamaguchi K, Nakamura H, Haga K. Boiling and Dryout Conditions in Disturbed Cluster Geometry and Their Application to the Liquid-Metal Fast Breeder Reactor Local Fault Assessment. NUCL SCI ENG 2017. [DOI: 10.13182/nse84-a18599] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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131
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Tsuzuki K, Kimura H, Kusama Y, Sato M, Kawashima H, Kamiya K, Shinohara K, Ogawa H, Uehara K, Kurita G, Kasai S, Hoshino K, Isei N, Miura Y, Yamamoto M, Kikuchi K, Shibata T, Bakhtiari M, Hino T, Hirohata Y, Yamauchi Y, Yamaguchi K, Tsutsui H, Shimada R, Amemiya H, Nagashima Y, Ido T, Hamada Y. Characteristics of Plasma Operation with the Ferritic inside Wall and Its Compatibility with High-Performance Plasmas in JFT-2M. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.13182/fst06-a1095] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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132
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Nakajima Y, Muro S, Nasu H, Harada M, Yamaguchi K, Akita K. Morphology of the region anterior to the anal canal in males: visualization of the anterior bundle of the longitudinal muscle by transanal ultrasonography. Surg Radiol Anat 2017; 39:967-973. [DOI: 10.1007/s00276-017-1832-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Accepted: 02/12/2017] [Indexed: 11/28/2022]
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Yamaguchi K, Shoji M, Isobe H, Yamanaka S, Umena Y, Kawakami K, Kamiya N. On the guiding principles for understanding of geometrical structures of the CaMn4O5 cluster in oxygen-evolving complex of photosystem II. Proposal of estimation formula of structural deformations via the Jahn–Teller effects. Mol Phys 2017. [DOI: 10.1080/00268976.2016.1278476] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Imafuku K, Yoshino K, Yamaguchi K, Tsuboi S, Ohara K, Hata H. Hypothyroidism associated with nivolumab treatment of unresectable malignant melanoma. Clin Exp Dermatol 2017; 42:217-218. [PMID: 28052364 DOI: 10.1111/ced.13028] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/08/2016] [Indexed: 12/26/2022]
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135
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Yamaguchi S, Rikimaru H, Yamaguchi K, Itoh M, Watanabe M. Overall Activity of All Masticatory Muscles during Lateral Excursion. J Dent Res 2016; 85:69-73. [PMID: 16373684 DOI: 10.1177/154405910608500112] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Quantification of the overall activity of every masticatory muscle is requisite for the analysis of stomatognathic function, which has not been accomplished by conventional electromyography. We used positron emission tomography and 18F-fluoro-deoxy-glucose to quantify the overall activity of every masticatory muscle during lateral excursion, and to evaluate the relative contribution of each masticatory muscle to lateral excursion. The present study suggested that lateral and medial pterygoid muscles are more responsible for lateral excursion than are masseter and temporal muscles. In particular, the contralateral lateral pterygoid muscle plays a major role, followed by the contralateral medial pterygoid muscle.
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Ono A, Serizawa M, Isaka M, Kojima H, Takahashi S, Nakashima K, Omori S, Wakuda K, Kenmotsu H, Naito T, Murakami H, Urakami K, Ohde Y, Nakajima T, Kusuhara M, Takahashi T, Yamaguchi K. An evaluation of the association between molecular signature and postoperative recurrence in patients with non-small cell lung cancer. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)32721-6] [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]
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137
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Kawase M, Sato K, Mitsui R, Asonuma H, Kageyama M, Yamaguchi K, Inoue G. Electrochemical reaction engineering of polymer electrolyte fuel cell. AIChE J 2016. [DOI: 10.1002/aic.15545] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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138
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Shinozaki E, Osumi H, Chin K, Takahari D, Ogura M, Ichimura T, Matsushima T, Wakatsuki T, Nakayama I, Yamaguchi K. KRAS status and HER2 targeted treatment in advanced gastric cancer. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw363.41] [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
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139
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Osumi H, Shinozaki E, Chin K, Ogura M, Matsushima T, Wakatsuki T, Nakayama I, Ichimura T, Takahari D, Yamaguchi K. Associations between deepness of response and clinical outcomes with advanced HER2-positive gastric cancer with 1st-line chemotherapy and trastuzumab. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw371.36] [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
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140
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Terashima M, Hatakeyama K, Kusuhara M, Makuuchi R, Tokunaga M, Tanizawa Y, Bando E, Kawamura T, Hikage M, Kaji S, Ohshima K, Ohnami S, Urakami K, Yamaguchi K. Genetic analysis of gastric cancer with distinctive family history. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw371.27] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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141
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Shinozaki E, Miki Y, Ueno M, Igarashi M, Chin K, Takahari D, Ogura M, Ichimura T, Nakayama I, Osumi H, Wakatsuki T, Matsushima T, Yamaguchi K. Clinical characteristics in colorectal cancer harboring BRAF V600E and non-V600E mutations. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw363.47] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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142
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Yamaguchi K, Komatsu Y, Oki E, Yoshino T, Yamazaki K, Shibuya K, Oba K, Kato T. APOLLON study: a phase I/II study for the safety and efficacy of panitumumab in combination with TAS-102 for patients with RAS wild-type metastatic colorectal cancer refractory to standard chemotherapy. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw370.146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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143
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Yamazaki K, Yoshino T, Shinozaki E, Komatsu Y, Tsuji Y, Nishina T, Baba H, Denda T, Sugimoto N, Tsuji A, Yamaguchi K, Takayama T, Shimada Y, Hamamoto Y, Muro K, Gotoh M, Tanase T, Ohtsu A. Clinical significance of thymidine kinase 1 expression on TAS-102 treatment in RECOURSE phase III trial of TAS-102 versus placebo for metastatic colorectal cancer. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw370.112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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144
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Nishina T, Kuboki Y, Shinozaki E, Fukuoka S, Kajiwara T, Shitara K, Yamaguchi K, Komatsu Y, Yuki S, Yamazaki K, Hara H, Mochizuki N, Fukutani M, Hasegawa H, Matsuda S, Wakabayashi M, Nomura S, Sato A, Ohtsu A, Yoshino T. A multicentre phase I/II study of TAS-102 with nintedanib in patients with metastatic colorectal cancer refractory to standard therapies (N-TASK FORCE: EPOC1410); Phase I results. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw370.21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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145
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Makuuchi R, Hatakeyama K, Terashima M, Kusuhara M, Tokunaga M, Tanizawa Y, Bando E, Kawamura T, Hikage M, Kaji S, Ohshima K, Urakami K, Yamaguchi K. New approach to gastric cancer classification based on TP53 mutation. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw371.39] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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146
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Kitaya K, Matsubayashi H, Takaya Y, Yamaguchi K, Nishiyama R, Ishikawa T. Improved live birth rate following antibiotic treatment for chronic endometritis in infertile women with a history of repeated implantation failure. Fertil Steril 2016. [DOI: 10.1016/j.fertnstert.2016.07.704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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147
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Mizuta S, Yamaguchi K, Nishiyama R, Takaya Y, Kitaya K, Matsubayashi H, Ishikawa T. Intracytoplasmic sperm injection (ICSI) outcome using immotile spermatozoa even after pentoxifyllin administration in non-obstructive azoospermic patients. Fertil Steril 2016. [DOI: 10.1016/j.fertnstert.2016.07.652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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148
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Yamazaki M, Ohnishi T, Hosokawa K, Yamaguchi K, Yoneyama T, Kawashima A, Okada Y, Kitagawa K, Uchiyama S. Measurement of residual platelet thrombogenicity under arterial shear conditions in cerebrovascular disease patients receiving antiplatelet therapy. J Thromb Haemost 2016; 14:1788-97. [PMID: 27328457 DOI: 10.1111/jth.13391] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Accepted: 05/22/2016] [Indexed: 11/29/2022]
Abstract
UNLABELLED Essentials A consensus methodology for assessing the effects of antiplatelet agents has not been established. Measuring platelet thrombus formation (PTF) for evaluating antiplatelet effects was assessed. PTF differentially reflected antiplatelet effects compared to other tests. PTF may be associated with the severity of carotid or intracranial arterial stenosis. Click to hear a presentation on platelet function testing in the clinic by Gresele and colleagues SUMMARY Background A consensus methodology for assessing the effects of antiplatelet agents has not been established. Objective We investigated the usefulness of directly measuring platelet thrombus formation (PTF) using a microchip-based flow chamber system for evaluating antiplatelet therapy. Patients/Methods Platelet thrombus formation in the whole blood of 94 patients with ischemic cerebrovascular disease treated with clopidogrel and/or aspirin was measured in a flow chamber system at a shear rate of 1500 s(-1) and was compared with the results of assays for agonist-induced platelet aggregability, phosphorylation of vasodilator-stimulated phosphoprotein, platelet p-selectin expression (PS), and platelet-monocyte complexes. Results In all patients tested, area under the flow pressure curve (AUC10), which represents platelet thrombogenicity, showed weak correlation with platelet aggregation induced by either adenosine diphosphate or collagen. In addition, AUC10 was lower in patients treated with dual antiplatelet therapy (median 79.4) compared with patients treated with aspirin or clopidogrel alone (217.7 and 301.0, respectively), whereas the parameters evaluated by the other assays did not reflect the combined treatment efficacy. In clopidogrel monotherapy patients, AUC10 was associated with the severity of arterial stenosis (R(2) = 0.127, β = 1.25), and AUC10 and PS were higher in patients with severe carotid or intracranial arterial stenosis than in those with mild stenosis. Conclusions Platelet thrombus formation measurement using a flow-chamber system was useful for evaluating the efficacy of treatment with aspirin and clopidogrel, both alone and in combination. The present findings indicate that high residual platelet thrombogenicity in patients treated with clopidogrel may be associated with the severity of carotid or intracranial arterial stenosis.
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Ishikawa T, Mizuta S, Yamaguchi K, Takaya Y, Nishiyama R, Kitaya K, Matsubayashi H. Clinical outcomes of microdissection testicular sperm extraction (micro TESE) and intracytoplasmic sperm injection (ICSI) in patients with Klinefelter syndrome. Fertil Steril 2016. [DOI: 10.1016/j.fertnstert.2016.07.846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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150
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Arita N, Mizuta S, Yamaguchi K, Nishiyama R, Takaya Y, Kitaya K, Matsubayashi H, Ishikawa T. Clinical outcomes of testicular sperm extraction (TESE) and embryonic development in patients with post chemotherapy non-obstructive azoospermia. Fertil Steril 2016. [DOI: 10.1016/j.fertnstert.2016.07.378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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