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Yoshioka K, Miyashita K, Kuwata-Gonokami M. Selective generation of ultracold high-density 1s orthoexcitons in Cu2O with phase-modulated pulse using acousto-optic programmable filter. OPTICS EXPRESS 2014; 22:3261-3270. [PMID: 24663617 DOI: 10.1364/oe.22.003261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Ultracold and high-density 1s orthoexcitons in semiconductor cuprous oxide are prepared via resonant two-photon absorption of a phase-tailored femtosecond pulse, by utilizing an acousto-optic programmable dispersive filter. The stability of the quantum degenerate exciton gas is studied using excitonic Lyman spectroscopy. A density of 10(16) cm(-3) is realized without creating hot carriers, and the Lyman spectrum remains unchanged at this density. This result assures the stability of a spontaneous Bose-Einstein condensate of excitons at sub-Kelvin temperatures.
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Uchida T, Kitaura J, Nakahara F, Togami K, Inoue D, Maehara A, Nishimura K, Kawabata KC, Doki N, Kakihana K, Yoshioka K, Izawa K, Oki T, Sada A, Harada Y, Ohashi K, Katayama Y, Matsui T, Harada H, Kitamura T. Hes1 upregulation contributes to the development of FIP1L1-PDGRA-positive leukemia in blast crisis. Exp Hematol 2014; 42:369-379.e3. [PMID: 24486648 DOI: 10.1016/j.exphem.2014.01.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2014] [Revised: 01/17/2014] [Accepted: 01/19/2014] [Indexed: 01/21/2023]
Abstract
We have previously shown that elevated expression of Hairy enhancer of split 1 (Hes1) contributes to blast crisis transition in Bcr-Abl-positive chronic myelogenous leukemia. Here we investigate whether Hes1 is involved in the development of other myeloid neoplasms. Notably, Hes1 expression was elevated in only a few cases of 65 samples with different types of myeloid neoplasms. Interestingly, elevated expression of Hes1 was found in two of five samples of Fip1-like1 platelet-derived growth factor receptor-α (FIP1L1-PDGFA)-positive myeloid neoplasms associated with eosinophilia. Whereas FIP1L1-PDGFRα alone induced acute T-cell leukemia or myeloproliferative neoplasms in mouse bone marrow transplantation models, mice transplanted with bone marrow cells expressing both Hes1 and FIP1L1-PDGFRα developed acute leukemia characterized by an expansion of myeloid blasts and leukemic cells without eosinophilic granules. FIP1L1-PDGFRα conferred cytokine-independent growth to Hes1-transduced common myeloid progenitors, interleukin-3-dependent cells. Imatinib inhibited the growth of common myeloid progenitors expressing Hes1 with FIP1L1-PDGFRα, but not with imatinib-resistant FIP1L1-PDGFRα mutants harboring T674I or D842V. In contrast, ponatinib efficiently eradicated leukemic cells expressing Hes1 and the imatinib-resistant FLP1L1-PDGFRΑ mutant in vitro and in vivo. Thus, we have established mouse models of FIP1L1-PDGFRA-positive leukemia in myeloid blast crisis, which will help elucidate the pathogenesis of the disease and develop a new treatment for it.
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MESH Headings
- Amino Acid Substitution
- Animals
- Antineoplastic Agents/pharmacology
- Basic Helix-Loop-Helix Transcription Factors/biosynthesis
- Basic Helix-Loop-Helix Transcription Factors/genetics
- Benzamides/pharmacology
- Blast Crisis/genetics
- Blast Crisis/metabolism
- Blast Crisis/pathology
- Female
- Gene Expression Regulation, Leukemic
- Homeodomain Proteins/biosynthesis
- Homeodomain Proteins/genetics
- Humans
- Imatinib Mesylate
- Interleukin-3/biosynthesis
- Interleukin-3/genetics
- Leukemia, Myeloid, Acute/genetics
- Leukemia, Myeloid, Acute/mortality
- Leukemia, Myeloid, Acute/pathology
- Male
- Mice
- Mice, Inbred BALB C
- Mutation, Missense
- Neoplasms, Experimental/drug therapy
- Neoplasms, Experimental/genetics
- Neoplasms, Experimental/metabolism
- Neoplasms, Experimental/pathology
- Oncogene Proteins, Fusion/genetics
- Oncogene Proteins, Fusion/metabolism
- Piperazines/pharmacology
- Precursor T-Cell Lymphoblastic Leukemia-Lymphoma/drug therapy
- Precursor T-Cell Lymphoblastic Leukemia-Lymphoma/genetics
- Precursor T-Cell Lymphoblastic Leukemia-Lymphoma/metabolism
- Precursor T-Cell Lymphoblastic Leukemia-Lymphoma/pathology
- Pyrimidines/pharmacology
- Receptor, Platelet-Derived Growth Factor alpha/genetics
- Receptor, Platelet-Derived Growth Factor alpha/metabolism
- Transcription Factor HES-1
- mRNA Cleavage and Polyadenylation Factors/genetics
- mRNA Cleavage and Polyadenylation Factors/metabolism
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Somfai T, Kikuchi K, Yoshioka K, Tanihara F, Kaneko H, Noguchi J, Haraguchi S, Nagai T. 44 PRODUCTION OF LIVE PIGLETS AFTER CRYOPRESERVATION OF IMMATURE PORCINE OOCYTES. Reprod Fertil Dev 2014. [DOI: 10.1071/rdv26n1ab44] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Development to term of vitrified porcine follicular oocytes is reported in the present study. Immature cumulus-oocyte complexes (COC) were collected from slaughtered prepubertal gilts and were vitrified according to our method published recently (Somfai et al. 2013 J. Reprod. Dev., in press). Briefly, after pretreatment with 7.5 μg mL–1 of cytochalasin B (CB) for 30 min in modified NCSU-37 (a basic medium, BM) at 38.5°C, groups of 88 to 121 COC were equilibrated in a mixture of 2% ethylene glycol (EG), 2% propylene glycol (PG), and 7.5 μg mL–1 CB for 13 to 15 min. Then, COC were washed in vitrification solution (17.5% EG, 17.5% PG, 5% polyvinyl pyrrolidone, and 0.3 M trehalose in BM) and then dropped with 2 μL of vitrification solution onto the surface of aluminum foil floating on liquid nitrogen (LN2). Microdroplets (each containing 10–25 COC) were transferred into cryotubes. After storage in LN2 for 2 to 4 weeks, the oocytes were warmed by dropping the microdroplets directly into 2.5 mL of warming solution (0.4 M trehalose in BM) kept in a 35-mm Petri dish on a 42°C hotplate for less than 1 min. Then, the warming dish was placed on a 38°C hotplate and COC were consecutively transferred for 1-min periods into BM containing 0.2, 0.1, or 0.05 M trehalose at 38°C. The COC were matured in vitro for 44 h using porcine oocyte medium (POM) supplemented with 10% follicular fluid (Yoshioka et al. 2008 J. Reprod. Dev. 54, 208–213). Then, oocytes were denuded, and their live/dead status and nuclear maturation were determined by their morphology and the presence of the first polar body, respectively. To assess their developmental competence, vitrified and non-vitrified (control) oocytes were in vitro fertilized (IVF; Kikuchi et al. 2002 Biol. Reprod. 66, 1033–1041) and then in vitro cultured in porcine zygote medium-5 (PZM-5; Yoshioka et al. 2008 J. Reprod. Dev. 54, 208–213). Blastocyst rates were recorded on Days 5, 6, and 7 of culture (Day 0 = the day of IVF). The experiment was replicated 4 times. Data were analysed with 1-way ANOVA and the Tukey test. The results revealed that 86.4% (364/424) of oocytes survived after vitrification, which was significantly lower (P < 0.05) than that of controls [100% (326/326)]. Live oocytes in vitrified and control groups did not differ statistically in terms of nuclear maturation (63.9 v. 65.3%). Blastocyst rates of surviving vitrified oocytes were significantly lower compared with controls on Days 5 (2.4 v. 12.7%), 6 (4.8 v. 17.6%), and 7 (5.6 v. 18.4%). To test their ability to develop to term, 16 and 27 blastocysts on Day 5 developing from vitrified COC were transferred into 2 recipients. Both recipients became pregnant and farrowed a total of 10 live piglets (4 and 6 piglets, respectively). These data demonstrate that large groups of immature porcine oocytes could be cryopreserved by this method showing high survival and maturation rates. Furthermore, despite a low rate of blastocyst development, transfer of Day-5 blastocysts generated from vitrified oocytes resulted in piglet production for the first time in the world.
Partially supported by JSPS and HAS under the Japan-Hungary Research Cooperative Program.
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79
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Owaki M, Oono H, Nakajima N, Ohta G, Okano S, Kakizaki T, Yoshioka K. Morphology and Distribution of Lamellar Corpuscles in the Mesentery of the Cat. Anat Histol Embryol 2013; 43:375-8. [DOI: 10.1111/ahe.12087] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2012] [Accepted: 07/31/2013] [Indexed: 11/28/2022]
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80
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Omachi J, Suzuki T, Kato K, Naka N, Yoshioka K, Kuwata-Gonokami M. Observation of excitonic N-body bound states: polyexcitons in diamond. PHYSICAL REVIEW LETTERS 2013; 111:026402. [PMID: 23889423 DOI: 10.1103/physrevlett.111.026402] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Indexed: 06/02/2023]
Abstract
We have found a series of resonances associated with the bound state (polyexcitons, PE(N)s) of N excitons up to N=6 in the emission spectra of diamond under two-photon excitation at around 10 K. Time-resolved spectra show a stepwise formation of PE(N)s with smaller to larger N, as well as a successive decay from larger to smaller N. At higher excitation levels, the transformation of PE(N)s into a condensed phase of electron-hole droplets occurs. The binding energies of the PE(N)s, normalized to the exciton Rydberg energy, agree well with those of silicon, suggesting the universality of the phenomena.
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81
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Tanaka R, Yoshioka K, Kamada T, Abiko A. Intentional preservation of collateral circulation to the artery of Adamkiewicz using axillo-axillary bypass, concomitant with thoracic endovascular aneurysm repair. Eur J Cardiothorac Surg 2013; 45:391. [DOI: 10.1093/ejcts/ezt265] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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82
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Yamaguchi S, Suzuki C, Noguchi M, Kasa S, Mori M, Isozaki Y, Ueda S, Funahashi H, Kikuchi K, Nagai T, Yoshioka K. Effects of caffeine on sperm characteristics after thawing and inflammatory response in the uterus after artificial insemination with frozen-thawed boar semen. Theriogenology 2013; 79:87-93. [DOI: 10.1016/j.theriogenology.2012.09.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2012] [Revised: 09/24/2012] [Accepted: 09/24/2012] [Indexed: 10/27/2022]
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83
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Yoshioka K, Obata D, Nanjo H, Yokozeki K, Torichigai T, Morioka M, Higuchi T. New Ecological Concrete that Reduces CO2 Emissions Below Zero Level ∼ New Method for CO2 Capture and Storage ∼. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.egypro.2013.06.530] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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84
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Owaki M, Oono H, Nakajima N, Ohta G, Okano S, Kakizaki T, Yoshioka K. Scanning Electron Microscopic Study for Pore Formation of the Greater Omentum of Cats. Anat Histol Embryol 2012; 42:151-4. [DOI: 10.1111/j.1439-0264.2012.01177.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2012] [Accepted: 06/01/2012] [Indexed: 11/26/2022]
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85
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Yoshioka K, Homma T, Murakami G, Yoshikawa I. High sensitivity microchannel plate detectors for space extreme ultraviolet missions. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2012; 83:083117. [PMID: 22938284 DOI: 10.1063/1.4746989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Microchannel plate (MCP) detectors have been widely used as two-dimensional photon counting devices on numerous space EUV (extreme ultraviolet) missions. Although there are other choices for EUV photon detectors, the characteristic features of MCP detectors such as their light weight, low dark current, and high spatial resolution make them more desirable for space applications than any other detector. In addition, it is known that the photocathode can be tailored to increase the quantum detection efficiency (QDE) especially for longer UV wavelengths (100-150 nm). There are many types of photocathode materials available, typically alkali halides. In this study, we report on the EUV (50-150 nm) QDE evaluations for MCPs that were coated with Au, MgF(2), CsI, and KBr. We confirmed that CsI and KBr show 2-100 times higher QDEs than the bare photocathode MCPs, while Au and MgF(2) show reduced QDEs. In addition, the optimal geometrical parameters for the CsI deposition were also studied experimentally. The best CsI thickness was found to be 150 nm, and it should be deposited on the inner wall of the channels only where the EUV photons initially impinge. We will also discuss the techniques and procedures for reducing the degradation of the photocathode while it is being prepared on the ground before being deployed in space, as adopted by JAXA's EXCEED mission which will be launched in 2013.
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86
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Gondo T, Yoshioka K, Nakagami Y, Okubo H, Hashimoto T, Satake N, Ozu C, Horiguchi Y, Namiki K, Tachibana M. Robotic Versus Open Radical Cystectomy: Prospective Comparison of Perioperative and Pathologic Outcomes in Japan. Jpn J Clin Oncol 2012; 42:625-31. [DOI: 10.1093/jjco/hys062] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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87
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Yoshioka K, Ueno Y, Tanaka S, Nagai K, Onitake T, Hanaoka R, Watanabe H, Chayama K. Role of natural killer T cells in the mouse colitis-associated colon cancer model. Scand J Immunol 2012; 75:16-26. [PMID: 21815907 DOI: 10.1111/j.1365-3083.2011.02607.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Invariant natural killer T (iNKT) cells are considered innate-like lymphocytes, and regulate the immunity against inflammation and tumorigenesis. However, the impact of iNKT cells in inflammation-associated tumorigenesis remains unclear. In this study, we examined the physiological role of iNKT cells in a mouse colitis-associated colorectal cancer model. C57BL/6 (B6) and Jα18 NKT cell-deficient KO (KO) mice were used. Colitis-associated colorectal cancer was induced by azoxymethane (AOM) and dextran sodium sulfate (DSS). The resulting inflammation and tumours were examined. The surface markers of mononuclear cells from the liver and the colon were assessed by FACS. The levels of IL-13 from the colon were measured by ELISA. α-galactosylceramide (GC), or its close analog OCH, was administered intraperitoneally on the first day of each cycle of DSS-administration. In the AOM/DSS model, hepatic iNKT cells were significantly decreased. In KO mice there were significantly greater numbers of colon tumours and more severe inflammation than in B6 mice. FACS analysis revealed that the population of NK1.1 (+) T cells (non-invariant NKT cells) in the colon was increased when compared to B6 mice. The secretion of IL-13 was increased in the colon of KO mice after AOM/DSS. The number of colon tumours was significantly decreased in the GC-treated group compared to the control group. GC-treatment significantly inhibited IL-13 secretion from the colonic mononuclear cells and the number of colonic NK1.1 (+) T cells was significantly decreased. These results suggest that iNKT cells may play a critical role in the prevention of tumour progression and inflammation in the AOM/DSS model.
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88
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Tokuyama H, Wakino S, Hara Y, Washida N, Fujimura K, Hosoya K, Yoshioka K, Hasegawa K, Minakuchi H, Homma K, Hayashi K, Itoh H. Role of mineralocorticoid receptor/Rho/Rho-kinase pathway in obesity-related renal injury. Int J Obes (Lond) 2011; 36:1062-71. [PMID: 22184057 PMCID: PMC3419977 DOI: 10.1038/ijo.2011.232] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE: We examined whether aldosterone/Rho/Rho-kinase pathway contributed to obesity-associated nephropathy. SUBJECTS: C57BL/6J mice were fed a high fat or low fat diet, and mice on a high fat diet were treated with a mineralocorticoid receptor antagonist, eplerenone. RESULTS: The mice on a high fat diet not only developed obesity, but also manifested renal histological changes, including glomerular hypercellularity and increased mesangial matrix, which paralleled the increase in albuminuria. Furthermore, enhanced Rho-kinase activity was noted in kidneys from high fat diet-fed mice, as well as increased expressions of inflammatory chemokines. All of these changes were attenuated by eplerenone. In high fat diet-fed mice, mineralocorticoid receptor protein levels in the nuclear fraction and SGK1, an effector of aldosterone, were upregulated in kidneys, although serum aldosterone levels were unaltered. Furthermore, aldosterone and 3β-hydroxysteroid dehydrogenase in renal tissues were upregulated in high fat diet-fed mice. Finally, in cultured mesangial cells, stimulation with aldosterone enhanced Rho-kinase activity, and pre-incubation with eplerenone prevented the aldosterone-induced activation of Rho kinase. CONCLUSION: Excess fat intake causes obesity and renal injury in C57BL/6J mice, and these changes are mediated by an enhanced mineralocorticoid receptor/Rho/Rho-kinase pathway and inflammatory process. Mineralocorticoid receptor activation in the kidney tissue and the subsequent Rho-kinase stimulation are likely to participate in the development of obesity-associated nephropathy without elevation in serum aldosterone levels.
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89
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Tobina T, Yoshioka K, Hirata A, Mori S, Kiyonaga A, Tanaka H. Peroxisomal proliferator-activated receptor gamma co-activator-1 alpha gene expression increases above the lactate threshold in human skeletal muscle. J Sports Med Phys Fitness 2011; 51:683-688. [PMID: 22212273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
AIM Peroxisomal proliferator-activated receptor gamma co-activator-1 alpha (PGC-1α) plays a role not only as an activator of mitochondrial biogenesis, but also as a suppressor of inflammatory cytokines, which induce chronic diseases. Therefore, increasing PGC-1α expression can be one of the important factors for preventing chronic diseases. PGC-1α expression is activated by adenosine monophosphate-activated protein kinase (AMPK) and cAMP dependent kinase. The activity of these enzymes depends on the exercise intensity. Therefore, this study compared the effects of two different exercise intensities (above lactate threshold (LT) and below LT) with an equal amount of energy expenditure on PGC-1α gene expression in human skeletal muscle. METHODS Six young men participated in this study. They performed exercise at 120% and 80% LT intensity. The duration of the 120% LT exercise was 60 minutes and the duration of the session performed at 80% LT was calculated to yield equal energy expenditure as the 120% LT intensity exercise. Skeletal muscle was obtained after 1 hour of exercise. RESULTS The working rate, % peak VO2 and HR during exercise were significantly higher in at 120% LT than at 80% LT. PGC-1α gene expression was not significantly different between control (0.087; 0.026-0.284 (the median; inter quartile range)) and 80% LT (0.171; 0.030-0.484). However, PGC-1α gene expression after 120% LT (0.441; 0.121-4.643) was significantly higher than in the control. CONCLUSION The findings of this study suggest that PGC-1α gene expression depends on exercise intensity.
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Hanaoka R, Ueno Y, Tanaka S, Nagai K, Onitake T, Yoshioka K, Chayama K. The Water-Soluble Extract from Cultured Medium of Ganoderma lucidum (Reishi) Mycelia (Designated as MAK) Ameliorates Murine Colitis Induced by Trinitrobenzene Sulphonic Acid. Scand J Immunol 2011; 74:454-62. [DOI: 10.1111/j.1365-3083.2011.02601.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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91
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Sembon S, Fuchimoto D, Iwamoto M, Suzuki S, Yoshioka K, Onishi A. A simple method for producing tetraploid porcine parthenogenetic embryos. Theriogenology 2011; 76:598-606. [DOI: 10.1016/j.theriogenology.2011.03.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2010] [Revised: 03/15/2011] [Accepted: 03/15/2011] [Indexed: 10/18/2022]
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92
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Nakayawa H, Yoshida M, Shindo M, Nishiyama H, Yamada M, Yoshioka K, Itoh K. 8757 POSTER Intrathecal Sodium Butyrate for Neoplastic Meningitis- Experimental Study and Clinical Trial. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)72308-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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93
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Kanda N, Higuchi T, Shimizu H, Konishi K, Yoshioka K, Kuwata-Gonokami M. The vectorial control of magnetization by light. Nat Commun 2011; 2:362. [PMID: 21694710 PMCID: PMC3156816 DOI: 10.1038/ncomms1366] [Citation(s) in RCA: 113] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2011] [Accepted: 05/24/2011] [Indexed: 12/05/2022] Open
Abstract
Application of coherent light–matter interactions has recently been extended to the ultrafast control of magnetization. An important but unrealized technique is the manipulation of magnetization vector motion to make it follow an arbitrarily designed multidimensional trajectory. Here we demonstrate a full manipulation of two-dimensional magnetic oscillations in antiferromagnetic NiO with a pair of polarization-twisted femtosecond laser pulses. We employ Raman-type nonlinear optical processes, wherein magnetic oscillations are impulsively induced with a controlled initial phase. Their azimuthal angle follows well-defined selection rules that have been determined by the symmetries of the materials. We emphasize that the temporal variation of the laser-pulse polarization angle enables us to control the phase and amplitude of the two degenerate modes, independently. These results lead to a new concept of the vectorial control of magnetization by light. Light–matter interactions can be used to manipulate magnetization in solids, but light-controlled magnetization vector motion has not been demonstrated. Here, two-dimensional magnetic oscillations in NiO are manipulated with optical pulses leading to vectorial control of magnetization by light.
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94
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Morita S, Koizumi J, Sakurai K, Amino M, Yoshioka K, Nakagawa Y, Yamamoto I, Inokuchi S. Atypical extravasation of contrast medium in massive extrapleural haematoma due to cardiac massage without rib fracture. Emerg Med J 2011; 26:710. [PMID: 19773488 DOI: 10.1136/emj.2008.061739] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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95
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Hayashi K, Katano Y, Ishigami M, Itoh A, Hirooka Y, Nakano I, Urano F, Yoshioka K, Toyoda H, Kumada T, Goto H. Mutations in the core and NS5A region of hepatitis C virus genotype 1b and correlation with response to pegylated-interferon-alpha 2b and ribavirin combination therapy. J Viral Hepat 2011; 18:280-6. [PMID: 20367792 DOI: 10.1111/j.1365-2893.2010.01305.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Mutations in two regions of hepatitis C virus (HCV) have been implicated in influencing response to interferon (IFN) therapy. Substitutions in the NS5A region of HCV have been associated with response to IFN therapy, and this region has been known as the IFN sensitivity-determining region (ISDR). The mutations in the core region of HCV have also been reported to predict IFN response. The aim of this study was to investigate whether amino acid substitutions in the core region and ISDR among patients with HCV genotype 1b affect the response to IFN therapy. A total of 213 patients who completed IFN treatment were randomly selected. All patients received pegylated-IFN-alpha 2b once each week, plus oral ribavirin daily for 48 weeks. Of the 213 patients, 117 (54.9%) showed early virologic response (EVR), with HCV-negativity, at 12 weeks. Factors related to EVR on multivariate analysis were non-Gln70 and Leu91 in the core region, and ISDR mutant-type. One hundred and two (47.9%) showed a sustained virologic response (SVR). SVR occurred more frequently in patients without Gln70 (55.4%) than in those with Gln70 (21.3%) (P < 0.0001). SVR was achieved in 43.6% of patients with wild-type ISDR and 62.5% of patients with mutant-type (P = 0.0227). Of the 34 patients who simultaneously had non-Gln70 and mutant-type ISDR, 26 (76.5%) achieved SVR. Factors related to SVR on multivariate analysis were non-Gln70 and ISDR mutant-type. In conclusion, amino acid substitutions in the core region and ISDR were useful for predicting the response to IFN in patients with HCV genotype 1b.
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96
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Hara Y, Wakino S, Tanabe Y, Saito M, Tokuyama H, Washida N, Tatematsu S, Yoshioka K, Homma K, Hasegawa K, Minakuchi H, Fujimura K, Hosoya K, Hayashi K, Nakayama K, Itoh H. Rho and Rho-Kinase Activity in Adipocytes Contributes to a Vicious Cycle in Obesity That May Involve Mechanical Stretch. Sci Signal 2011; 4:ra3. [DOI: 10.1126/scisignal.2001227] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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97
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Yamashita T, Inoue H, Okumura K, Kodama I, Aizawa Y, Atarashi H, Ohe T, Ohtsu H, Kato T, Kamakura S, Kumagai K, Kurachi Y, Koretsune Y, Saikawa T, Sakurai M, Sato T, Sugi K, Nakaya H, Hirai M, Hirayama A, Fukatani M, Mitamura H, Yamazaki T, Watanabe E, Ogawa S, Katoh T, Igawa O, Matsumoto N, Yamashita T, Kaneko Y, Watanabe E, Ogawa S, Osaka T, Fujii E, Niwano S, Yoshioka K, Kato M, Okazaki O, Kusano K, Okuyama Y, Furushima H, Suzuki M, Noda T, Kawara T, Sato T, Kamakura S, Endoh Y, Kumagai K, Hiyoshi Y, Ishiyama T, Ohtsuka T, Matsumoto M, Chishaki A, Shinohara T, Shirayama T, Koretsune Y, Yokoyama E, Ajiki K, Fujio K, Sugi K, Yamakawa T, Yusu S, Inoue H, Kawamura Y, Hayano M, Date T, Mizusawa Y, Kobayashi Y, Satomi K, Imai Y, Atarashi H, Fukunami M, Yokoshiki H, Betsuyaku T, Okumura K, Takeda H, Matsumoto K, Okishige K, Tagawa M, Hirai M, Okazaki H. Randomized trial of angiotensin II-receptor blocker vs. dihydropiridine calcium channel blocker in the treatment of paroxysmal atrial fibrillation with hypertension (J-RHYTHM II Study). Europace 2010; 13:473-9. [DOI: 10.1093/europace/euq439] [Citation(s) in RCA: 91] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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98
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Kimura S, Ikezawa M, Ozasa S, Yoshioka K, Nomura K, Kosuge H. P4.05 Novel mutation in splicing donor of dystrophin gene first exon in a patient with dilated cardiomyopathy but no clinical signs of skeletal myopathy. Neuromuscul Disord 2010. [DOI: 10.1016/j.nmd.2010.07.201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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99
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Yoshioka K, Watahiki Y, Kanie A, Tsujio M, Ikadai H, Kashimoto T, Mutoh K. Morphology of the cockerel's comb after androgen administration. Br Poult Sci 2010; 51:185-94. [DOI: 10.1080/00071661003745810] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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100
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Mito T, Yoshioka K, Nagano M, Suzuki C, Yamashita S, Hoshi H. Transforming growth factor-α in a defined medium during in vitro maturation of porcine oocytes improves their developmental competence and intracellular ultrastructure. Theriogenology 2009; 72:841-50. [DOI: 10.1016/j.theriogenology.2009.06.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2009] [Revised: 05/28/2009] [Accepted: 06/03/2009] [Indexed: 11/26/2022]
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