51
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Takahashi S, Inoue M, Fukui T, Gondo N, Yokoyama S, Ishida T, Ohuchi N, Nomizu T, Kakugawa Y, Ishioka C. Developing Prognostic Biomarker of Breast Cancer using Expression Profile about TP53 Status. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)32220-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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52
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Eslamloo K, Falahatkar B, Yokoyama S. Effects of dietary bovine lactoferrin on growth, physiological performance, iron metabolism and non-specific immune responses of Siberian sturgeon Acipenser baeri. FISH & SHELLFISH IMMUNOLOGY 2012; 32:976-985. [PMID: 22377421 DOI: 10.1016/j.fsi.2012.02.007] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2011] [Revised: 02/06/2012] [Accepted: 02/06/2012] [Indexed: 05/31/2023]
Abstract
The present experiment was carried out to investigate the effects of different levels of dietary lactoferrin (LF) on growth performance, physiological status, iron absorption and innate immune response of juvenile Siberian sturgeon Acipenser baeri. Fish were fed with six different rations including 0, 100, 200, 400, 800 and 1600 mg LF kg(-1) diet for 8 weeks. At the end of the experiment, samples were collected for estimating the physiological and immunological parameters. Dietary LF did not change the fish growth performance, hematological parameters, serum proteins or hepatic enzymes. Moreover, stress indicators (plasma cortisol, glucose and lactate) were not affected by dietary LF. The iron absorption of fish was considerably affected by LF; thus, plasma iron in LF-treatments greatly declined and the total iron binding capacity (TIBC) significantly increased in fish fed with 800 mg LF kg(-1). In addition, the liver iron content markedly increased in some LF-treatments, but the variation of muscle iron concentration in treatments was insignificant. The amount of mucus secretion and serum bactericidal activity rose in fish fed on dietary LF, although other non-specific immune responses such as mucus bactericidal activity, serum and mucus lysozyme activity, serum peroxidase, serum natural hemolytic complement activity and serum IgM were not influenced by LF. This study revealed the ability of dietary LF to sequester iron, which is an essential nutrient required for the growth of bacteria. LF was also shown to improve some physiological and immunological parameters of Siberian sturgeon, to some extent.
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53
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Yoshikawa S, Kukimoto-Niino M, Parker L, Handa N, Terada T, Fujimoto T, Terazawa Y, Wakiyama M, Sato M, Sano S, Kobayashi T, Tanaka T, Chen L, Liu ZJ, Wang BC, Shirouzu M, Kawa S, Semba K, Yamamoto T, Yokoyama S. Structural basis for the altered drug sensitivities of non-small cell lung cancer-associated mutants of human epidermal growth factor receptor. Oncogene 2012; 32:27-38. [DOI: 10.1038/onc.2012.21] [Citation(s) in RCA: 96] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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54
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Nakagawa Y, Nagai T, Okawara H, Nakashima H, Hisamatsu A, Shuto M, Yamauchi M, Kai S, Yokoyama S, Murakami K, Fujioka T. Acute hemorrhagic colitis induced by the oral administration of oseltamivir used for influenza A treatment. Endoscopy 2011; 43 Suppl 2 UCTN:E261. [PMID: 21837605 DOI: 10.1055/s-0030-1256524] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
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55
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Shiraishi M, Nitta D, Yokoyama S. Parity Violation of Gravitons in the CMB Bispectrum. ACTA ACUST UNITED AC 2011. [DOI: 10.1143/ptp.126.937] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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56
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Okada K, Mikami T, Kaga S, Onozuka H, Inoue M, Yokoyama S, Nishino H, Nishida M, Matsuno K, Iwano H, Yamada S, Tsutsui H. Early diastolic mitral annular velocity at the interventricular septal annulus correctly reflects left ventricular longitudinal myocardial relaxation. EUROPEAN JOURNAL OF ECHOCARDIOGRAPHY 2011; 12:917-23. [DOI: 10.1093/ejechocard/jer154] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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57
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Parker LJ, Handa N, Shirouzu M, Yokoyama S. Structural investigation of Pim1 kinase. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311092385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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58
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Yokoyama S. Structural basis for specific aminoacyl-tRNA synthesis. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311096413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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59
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Morishita EC, Murayama K, Kato-Murayama M, Hayashi T, Terada T, Handa N, Shirouzu M, Akiyama T, Yokoyama S. Crystal structures of adenomatous polyposis coli and its complex with Sam68. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311091355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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60
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Nakagawa Y, Nagai T, Okawara H, Nakashima H, Hisamatsu A, Syutou M, Yamauchi M, Kai S, Nakayama T, Yokoyama S, Murakami K, Fujioka T. Minute primary extramedullary plasmacytomas of the large intestine. Endoscopy 2011; 43 Suppl 2 UCTN:E105-6. [PMID: 21424997 DOI: 10.1055/s-0030-1256138] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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61
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Kato T, Aoki K, Yokoyama S, Ejiri K, Minami K, Yashima H, Taniguchi A, Nakamura T, Hirayama H. Calculation of personal dose equivalent for positron-emitting radionuclides using Monte Carlo code EGS5. RADIATION PROTECTION DOSIMETRY 2011; 146:202-205. [PMID: 21498852 DOI: 10.1093/rpd/ncr148] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The conversion coefficients, H'(d,α)/Φ, for monoenergetic positrons and positron-emitting radionuclides were calculated by using the user code UCICRPM of the Monte Carlo code EGS5 to estimate the radiation dose for medical staff involved in positron emission tomography examinations. From these coefficients, the dose equivalent rates per unit activity at 0.07 and 10 mm depths in a soft tissue for a straight-line source of 2-deoxy-2-[(18)F]fluoro-d-glucose ((18)F-FDG) were calculated by using the developed user code UCF18DOSE. The dose equivalent rates per unit activity at 0.07 and 10 mm depths were measured by using a personal dosemeter (DOSE(3)) under the same conditions as those considered in the calculation. The calculated dose equivalent rates per unit activity at 0.07 and 10 mm depths were 0.116 and 0.0352 pSv min(-1) Bq(-1), respectively, at 20 cm from the (18)F-FDG injection tube.
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62
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Yokoyama S, Mori N, Shimo M, Fukushi M, Ohnuma S. Measurement of radon concentration in water using the portable radon survey meter. RADIATION PROTECTION DOSIMETRY 2011; 146:23-26. [PMID: 21493609 DOI: 10.1093/rpd/ncr098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
A measurement method for measuring radon in water using the portable radon survey meter (RnSM) was developed. The container with propeller was used to stir the water samples and release radon from the water into the air in a sample box of the RnSM. In this method, the measurement of error would be <20 %, when the radon concentration in the mineral water was >20 Bq l(-1).
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63
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Kawai F, Shibata M, Yokoyama S, Maeda S, Tada K, Hayashi S. Biodegradability of scott-gelead photodegradable polyethylene and polyethylene wax by microorganisms. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/masy.19991440108] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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64
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Akanuma Y, Yokoyama S, Imawari M, Itakura H. A Role of ApoA-1 in LCAT Reaction. Scandinavian Journal of Clinical and Laboratory Investigation 2011. [DOI: 10.1080/00365517809104898] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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65
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Amina S, Hashii M, Ma WJ, Yokoyama S, Lopatina O, Liu HX, Islam MS, Higashida H. Intracellular calcium elevation induced by extracellular application of cyclic-ADP-ribose or oxytocin is temperature-sensitive in rodent NG108-15 neuronal cells with or without exogenous expression of human oxytocin receptors. J Neuroendocrinol 2010; 22:460-6. [PMID: 20163520 DOI: 10.1111/j.1365-2826.2010.01978.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
ADP-ribosyl cyclase and/or CD38 are activated after oxytocin receptor stimulation in the hypothalamus and pituitary in adult mice, leading to facilitation of oxytocin secretion. Although cyclic adenosine 5'-diphosphoribose (cADPR) primarily acts as an intracellular second messenger, it has been suggested that extracellular cADPR stimulates intracellular ryanodine receptors after internalisation via the nucleotide-transporting capacity of CD38 in fibroblasts and astrocytes. However, little is known about whether extracellular cADPR activates neurones. To address this question, we used a model neuronal cell line, NG108-15 mouse neuroblastoma x rat glioma hybrid cells possessing CD38 but not oxytocin receptors, and measured cytosolic free calcium concentrations ([Ca(2+)](i)). Extracellular application of cADPR to NG108-15 cells elevated [Ca(2+)](i) at 35 degrees C. The elevation was significantly enhanced when measured at 40 degrees C. The cADPR and heat-induced [Ca(2+)](i) increase were blocked under extracellular Ca(2+)-free conditions and by 2-aminoethoxydiphenyl borate, an antagonist of melastatin-related transient receptor potential channel 2 (TRPM2) cation channels. Reverse transcriptation-polymerase chain reaction analyses indicated that TRPM2 channels were expressed in NG108-15 cells. Application of oxytocin elevated [Ca(2+)](i) in NG108-15 cells transformed to transiently express cloned human oxytocin receptors. The oxytocin-induced [Ca(2+)](i) response was also enhanced by heat. These results indicate that the extracellular application of cADPR, together with heat, activates cation influx downstream of oxytocin receptor signalling in NG108-15 neuronal cells, and suggest the possible involvement of TRPM2 channels in oxytocin release in the mammalian brain.
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66
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Yokoyama S. General evolution of the opsins in vertebrates. J Vis 2010. [DOI: 10.1167/6.13.33] [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] Open
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67
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Morishima A, Kaneda K, Yoshida Y, Heima D, Hirao S, Nagasaka S, Yokoyama S, Nishiwaki N. [Coronary artery aneurysm with various clinical course]. KYOBU GEKA. THE JAPANESE JOURNAL OF THORACIC SURGERY 2009; 62:1145-1149. [PMID: 19999092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Case 1: A 77-year-old woman had effort angina pectoris. Coronary angiography (CAG) revealed a coronary artery aneurysm on the left descending artery. Coronary artery bypass grafting (CABG) and patch angioplasty for the aneurysm were performed. Case 2 : A 69-year-old woman had effort dyspnea CAG showed dilation of the left main trunk and beaded aneurysms (maximum 6 cm in diameter) behind the ascending aorta with a fistula to the right atrium. We closed the fistula and performed CABG to the circumflex branch. Case 3 : A 78-year-old woman had had general fatigue for 2 weeks. Previous CAG had revealed coronary artery aneurysms and current chest computered tomography revealed pericardial effusion. She was, therefore, diagnosed with the rupture of the coronary artery aneurysm. We closed the coronary artery aneurysm and performed CABG. Case 4: A 55-year-old man had been diagnosed with acute myocardial infarction and had undergone percutaneous coronary intervention 3 years before. CAG revealed a coronary artery aneurysm on the right coronary artery. We resected the aneurysm and interposed with saphenous vein graft. Although coronary artery aneurysm often has no symptoms, in the cases of angina, myocardial infarction, rupture or large aneurysm more than 3 times larger than the normal diameter, surgical repair should be considered.
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68
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Han F, Takeda K, Ono M, Date F, Ishikawa K, Yokoyama S, Shinozawa Y, Furuyama K, Shibahara S. Hypoxemia induces expression of heme oxygenase-1 and heme oxygenase-2 proteins in the mouse myocardium. J Biochem 2009; 147:143-51. [DOI: 10.1093/jb/mvp153] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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69
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Kaneda K, Nishiwaki N, Yokoyama S, Nagasaka S, Hirao S, Heima D, Morishima A, Yoshida Y, Nagato H. [Preservation of aortic root with severe destruction in Stanford type A acute aortic dissection]. KYOBU GEKA. THE JAPANESE JOURNAL OF THORACIC SURGERY 2009; 62:966-970. [PMID: 19827549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
From November 1999 to December 2008, 197 patients with Stanford type A acute aortic dissection underwent the surgical treatment on an emergency basis. In 19 cases, we preserved the severely destroyed aortic root using gelatin-resorcin-formalin (GRF) glue avoiding aortic root replacement. We examined the indication and limitation of repair of the destroyed aortic root. The 19 patients were classified into 3 groups (A, B and C). Group A consisted of 7 patients who had no aortic regurgitation (AR). Group B consisted of 6 patients who had moderate to severe AR. Group C consisted of 6 patients who had coronary involvement. We preserved the broken aortic root in group A and group B. But it seemed to be rather difficult to repair the destroyed aortic root in some cases of group C.
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70
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Asai H, Yokoyama S, Morita S, Maeda N, Miyata S. Functional difference of receptor-type protein tyrosine phosphatase zeta/beta isoforms in neurogenesis of hippocampal neurons. Neuroscience 2009; 164:1020-30. [PMID: 19751804 DOI: 10.1016/j.neuroscience.2009.09.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2009] [Revised: 08/19/2009] [Accepted: 09/04/2009] [Indexed: 01/01/2023]
Abstract
Receptor-type protein tyrosine phosphatase zeta/beta (RPTPzeta) is a transmembrane chondroitin sulfate proteoglycan (CSPG) and has been shown to play crucial roles in controlling axonal growth and neuronal migration. The RPTPzeta has two transmembranous isoforms, shorter receptor form of RPTPzeta (sRPTPzeta) and full-length receptor form of RPTPzeta (fRPTPzeta), but no studies have been reported about functional difference of these two isoforms. In the present study, therefore, we examined whether or not two RPTPzeta isoforms have different role in controlling dendritic morphology and synaptic number in cultured hippocampal neurons using the quantitative morphometrical analysis. Confocal microscopic observation showed that the immunoreactivity of RPTPzeta was observed throughout cells such as axons, growth cones, and dendrites at the early stages of neuronal culture, while it was seen predominantly on dendrites at the late stages. Western blotting analysis revealed that fRPTPzeta was mainly expressed at the early stages of culture and both RPTPzeta isoforms were expressed at late stages of culture. The overexpression of sRPTPzeta in hippocampal neurons increased the dendritic arborization without altering the average length of dendritic branches, whereas that of fRPTPzeta decreased the dendritic arborization and increased the average length of dendritic branches. The RNA interference of fRPTPzeta expression increased the dendritic arborization without altering the average length of dendritic branches. The overexpression of fRPTPzeta decreased the density of hippocampal dendritic synapses, but that of sRPTPzeta had no effects. Pleiotrophin, a ligand for RPTPzeta to interfere the phosphatase activity, increased the density of hippocampal dendritic synapses. Thus, the present study demonstrates that two transmembranous RPTPzeta isoforms have different functions for regulating dendritogenesis and synaptogenesis.
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71
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Nishida T, Ito JI, Nagayasu Y, Yokoyama S. FGF-1-Induced Reactions for Biogenesis of apoE-HDL are Mediated by Src in Rat Astrocytes. J Biochem 2009; 146:881-6. [DOI: 10.1093/jb/mvp135] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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72
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Jia W, Yokoyama S, Sugiura M, Sekiguchi A, Fukushima A, Kawashima R. Retrieval of implicitly and explicitly learned information with different emotional contexts in the human brain. Neuroimage 2009. [DOI: 10.1016/s1053-8119(09)70820-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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73
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Harada-Shiba M, Sugisawa T, Yoshimasa Y, Yamamoto A, Yokoyama S, Tomoike H. Abstract: P389 IMPACT OF STATINS ON THE CLINICAL FATE OF HETEROZYGOUS FAMILIAL HYPERCHOLESTEROLEMIA. ATHEROSCLEROSIS SUPP 2009. [DOI: 10.1016/s1567-5688(09)70684-1] [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]
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74
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Harada-Shiba M, Sugisawa T, Yoshimasa Y, Yamamoto A, Yokoyama S, Tomoike H. Abstract: P388 IDENTIFYING VERY HIGH RISK PATIENTS OF CORONARY ARTERY DISEASE IN HETEROZYGOUS FAMILIAL HYPERCHOLESTEROLEMIA FROM CLINICAL FEATURES. ATHEROSCLEROSIS SUPP 2009. [DOI: 10.1016/s1567-5688(09)70683-x] [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]
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75
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Imamura Y, Yokoyama S. Chern-Simons Theories and Wrapped M-Branes in Their Gravity Duals. ACTA ACUST UNITED AC 2009. [DOI: 10.1143/ptp.121.915] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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