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Saeki J, Nakamura M, Nakao S, Fujita K, Yanase K, Ichihashi N. Muscle stiffness of posterior lower leg in runners with a history of medial tibial stress syndrome. Scand J Med Sci Sports 2017; 28:246-251. [DOI: 10.1111/sms.12862] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/13/2017] [Indexed: 12/01/2022]
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Uemura M, Nakata W, Kawashima A, Ujike T, Nagahara A, Fujita K, Nonomura N. Overexpression of miR-27a-3p is an independent prognostic factor for recurrence in clear cell renal cell carcinoma. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/s1569-9056(17)31028-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Ishizuya Y, Ujike T, Kawashima A, Nagahara A, Fujita K, Imamura R, Kiuchi H, Miyagawa Y, Uemura M, Nonomura N. 293P Serum free testosterone predicts a positive prostate biopsy in patients with PSA levels of 4-10ng/ml without any clinical findings. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw584.008] [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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54
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Ishizuya Y, Ujike T, Kawashima A, Nagahara A, Fujita K, Imamura R, Kiuchi H, Miyagawa Y, Uemura M, Nonomura N. 293P Serum free testosterone predicts a positive prostate biopsy in patients with PSA levels of 4-10ng/ml without any clinical findings. Ann Oncol 2016. [DOI: 10.1016/s0923-7534(21)00451-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Yabushita T, Zeredo JL, Fujita K, Toda K, Soma K. Functional Adaptability of Jaw-muscle Spindles after Bite-raising. J Dent Res 2016; 85:849-53. [PMID: 16931870 DOI: 10.1177/154405910608500914] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
In a previous experiment, we found that masseter muscle spindles show functional plasticity after 5 to 15 days under increased occlusal vertical dimension (iOVD). In the present study, we hypothesized that spindle function would eventually recover if longer observation periods were allowed. Therefore, in this study we investigated changes in masseter muscle spindle function over periods of 1 day to 8 weeks. Masseter muscle-spindle responses to ramp-and-hold jaw stretches were recorded from the mesencephalic trigeminal nucleus in 35 barbiturate-anesthetized female Wistar rats. The rats were previously divided into Control and iOVD groups, and those in the iOVD group received a 2.0-mm composite resin build-up to the maxillary molars. In this condition, there were no statistically significant differences in masseter muscle spindle sensitivity between Control and iOVD in the six- and eight-week subgroups. Our results further indicate a high degree of adaptability in masseter muscle spindle function following changes in OVD.
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Horigane K, Kihou K, Fujita K, Kajimoto R, Ikeuchi K, Ji S, Akimitsu J, Lee CH. Spin excitations in hole-overdoped iron-based superconductors. Sci Rep 2016; 6:33303. [PMID: 27615691 PMCID: PMC5018845 DOI: 10.1038/srep33303] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Accepted: 08/24/2016] [Indexed: 11/16/2022] Open
Abstract
Understanding the overall features of magnetic excitation is essential for clarifying the mechanism of Cooper pair formation in iron-based superconductors. In particular, clarifying the relationship between magnetism and superconductivity is a central challenge because magnetism may play a key role in their exotic superconductivity. BaFe2As2 is one of ideal systems for such investigation because its superconductivity can be induced in several ways, allowing a comparative examination. Here we report a study on the spin fluctuations of the hole-overdoped iron-based superconductors Ba1-xKxFe2As2 (x = 0.5 and 1.0; Tc = 36 K and 3.4 K, respectively) over the entire Brillouin zone using inelastic neutron scattering. We find that their spin spectra consist of spin wave and chimney-like dispersions. The chimney-like dispersion can be attributed to the itinerant character of magnetism. The band width of the spin wave-like dispersion is almost constant from the non-doped to optimum-doped region, which is followed by a large reduction in the overdoped region. This suggests that the superconductivity is suppressed by the reduction of magnetic exchange couplings, indicating a strong relationship between magnetism and superconductivity in iron-based superconductors.
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Kasagi M, Fujita K, Tsuji M, Takewaki I. Automatic generation of smart earthquake-resistant building system: Hybrid system of base-isolation and building-connection. Heliyon 2016; 2:e00069. [PMID: 27441248 PMCID: PMC4945967 DOI: 10.1016/j.heliyon.2016.e00069] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2015] [Revised: 01/04/2016] [Accepted: 01/21/2016] [Indexed: 11/25/2022] Open
Abstract
A base-isolated building may sometimes exhibit an undesirable large response to a long-duration, long-period earthquake ground motion and a connected building system without base-isolation may show a large response to a near-fault (rather high-frequency) earthquake ground motion. To overcome both deficiencies, a new hybrid control system of base-isolation and building-connection is proposed and investigated. In this new hybrid building system, a base-isolated building is connected to a stiffer free wall with oil dampers. It has been demonstrated in a preliminary research that the proposed hybrid system is effective both for near-fault (rather high-frequency) and long-duration, long-period earthquake ground motions and has sufficient redundancy and robustness for a broad range of earthquake ground motions.An automatic generation algorithm of this kind of smart structures of base-isolation and building-connection hybrid systems is presented in this paper. It is shown that, while the proposed algorithm does not work well in a building without the connecting-damper system, it works well in the proposed smart hybrid system with the connecting damper system.
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Fujita K, Kume H, Matsuzaki K, Kawashima A, Ujike T, Nagahara A, Uemura M, Tomonaga T, Nonomura N. Discovery of high-Gleason prostate cancer biomarker candidates from exosomes in urine after massage by proteomic analysis and subsequent verification using selected reaction monitoring. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)61653-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Kanai O, Fujita K, Okamura M, Nakatani K, Mio T. Severe exacerbation or manifestation of primary disease related to nivolumab in non-small-cell lung cancer patients with poor performance status or brain metastases. Ann Oncol 2016; 27:1354-6. [DOI: 10.1093/annonc/mdw148] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Ueno A, Yamamura Y, Fujita K, Shibutou N, Yamamura M. SAT0339 The Efficacy of The 2015 Eular/acr Recommendations for The Management of Polymyalgia Rheumatica in Japanese Patients. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.5442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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61
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Kanayama Y, Nagasaka H, Shimotake M, Miyachi F, Fujita K, Ishii Y, Nagata A. AB0404 Ultrasonographic Evaluation of Iguratimod Therapy in Patients with Japanese Rheumatoid Arthritis. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.6076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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62
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Yamamura Y, Fujita K, Shibutou N, Ueno A, Yamamura M. AB0834 Acute Calcium Pyrophosphate Crystal Arthritis as A Cause of Sudden Onset of Fever and Arthritis in Geriatric Patients. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.5310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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63
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Fujita K, Yamamura Y, Nomura Y, Shibutou N, Ueno A, Maruyama K, Ombe T, Hiramatsu M, Yamamura M. SAT0172 Comparison of Efficacy and Safety of Biologic Agents between Elderly-Onset and Younger-Onset Rheumatoid Arthritis. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.5388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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64
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Hamidian MH, Edkins SD, Joo SH, Kostin A, Eisaki H, Uchida S, Lawler MJ, Kim EA, Mackenzie AP, Fujita K, Lee J, Davis JCS. Detection of a Cooper-pair density wave in Bi2Sr2CaCu2O8+x. Nature 2016; 532:343-7. [PMID: 27074504 DOI: 10.1038/nature17411] [Citation(s) in RCA: 169] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Accepted: 02/08/2016] [Indexed: 11/09/2022]
Abstract
The quantum condensate of Cooper pairs forming a superconductor was originally conceived as being translationally invariant. In theory, however, pairs can exist with finite momentum Q, thus generating a state with a spatially modulated Cooper-pair density. Such a state has been created in ultracold (6)Li gas but never observed directly in any superconductor. It is now widely hypothesized that the pseudogap phase of the copper oxide superconductors contains such a 'pair density wave' state. Here we report the use of nanometre-resolution scanned Josephson tunnelling microscopy to image Cooper pair tunnelling from a d-wave superconducting microscope tip to the condensate of the superconductor Bi2Sr2CaCu2O8+x. We demonstrate condensate visualization capabilities directly by using the Cooper-pair density variations surrounding zinc impurity atoms and at the Bi2Sr2CaCu2O8+x crystal supermodulation. Then, by using Fourier analysis of scanned Josephson tunnelling images, we discover the direct signature of a Cooper-pair density modulation at wavevectors QP ≈ (0.25, 0)2π/a0 and (0, 0.25)2π/a0 in Bi2Sr2CaCu2O8+x. The amplitude of these modulations is about five per cent of the background condensate density and their form factor exhibits primarily s or s' symmetry. This phenomenology is consistent with Ginzburg-Landau theory when a charge density wave with d-symmetry form factor and wavevector QC = QP coexists with a d-symmetry superconductor; it is also predicted by several contemporary microscopic theories for the pseudogap phase.
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Kargel JS, Leonard GJ, Shugar DH, Haritashya UK, Bevington A, Fielding EJ, Fujita K, Geertsema M, Miles ES, Steiner J, Anderson E, Bajracharya S, Bawden GW, Breashears DF, Byers A, Collins B, Dhital MR, Donnellan A, Evans TL, Geai ML, Glasscoe MT, Green D, Gurung DR, Heijenk R, Hilborn A, Hudnut K, Huyck C, Immerzeel WW, Liming J, Jibson R, Kääb A, Khanal NR, Kirschbaum D, Kraaijenbrink PDA, Lamsal D, Shiyin L, Mingyang L, McKinney D, Nahirnick NK, Zhuotong N, Ojha S, Olsenholler J, Painter TH, Pleasants M, Pratima KC, Yuan QI, Raup BH, Regmi D, Rounce DR, Sakai A, Donghui S, Shea JM, Shrestha AB, Shukla A, Stumm D, van der Kooij M, Voss K, Xin W, Weihs B, Wolfe D, Lizong W, Xiaojun Y, Yoder MR, Young N. Geomorphic and geologic controls of geohazards induced by Nepal's 2015 Gorkha earthquake. Science 2015; 351:aac8353. [PMID: 26676355 DOI: 10.1126/science.aac8353] [Citation(s) in RCA: 250] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2015] [Accepted: 11/27/2015] [Indexed: 11/02/2022]
Abstract
The Gorkha earthquake (magnitude 7.8) on 25 April 2015 and later aftershocks struck South Asia, killing ~9000 people and damaging a large region. Supported by a large campaign of responsive satellite data acquisitions over the earthquake disaster zone, our team undertook a satellite image survey of the earthquakes' induced geohazards in Nepal and China and an assessment of the geomorphic, tectonic, and lithologic controls on quake-induced landslides. Timely analysis and communication aided response and recovery and informed decision-makers. We mapped 4312 coseismic and postseismic landslides. We also surveyed 491 glacier lakes for earthquake damage but found only nine landslide-impacted lakes and no visible satellite evidence of outbursts. Landslide densities correlate with slope, peak ground acceleration, surface downdrop, and specific metamorphic lithologies and large plutonic intrusions.
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Kawashima A, Uemura M, Nagahara A, Yamamoto Y, Takada S, Inagaki Y, Kinouchi T, Miyake O, Nakazawa S, Nishimura K, Arai H, Honda M, Okada K, Tsujihata M, Tsutahara K, Yamaguchi S, Ujike T, Fujita K, Nonomura N. 248P GnRH antagonist plus bicalutamide might be an effective therapy as initial combined androgen blockade for patients with high grade prostate cancer. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv524.13] [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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67
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Nakamura R, Komatsu N, Murao T, Okamoto Y, Nakamura S, Fujita K, Nishimura H, Katsuki Y. The validity of the classification for lateral hinge fractures in open wedge high tibial osteotomy. Bone Joint J 2015; 97-B:1226-31. [PMID: 26330589 DOI: 10.1302/0301-620x.97b9.34949] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The objective of this study was to validate the efficacy of Takeuchi classification for lateral hinge fractures (LHFs) in open wedge high tibial osteotomy (OWHTO). In all 74 osteoarthritic knees (58 females, 16 males; mean age 62.9 years, standard deviation 7.5, 42 to 77) were treated with OWHTO using a TomoFix plate. The knees were divided into non-fracture (59 knees) and LHF (15 knees) groups, and the LHF group was further divided into Takeuchi types I, II, and III (seven, two, and six knees, respectively). The outcomes were assessed pre-operatively and one year after OWHTO. Pre-operative characteristics (age, gender and body mass index) showed no significant difference between the two groups. The mean Japanese Orthopaedic Association score was significantly improved one year after operation regardless of the presence or absence of LHF (p = 0.0015, p < 0.001, respectively). However, six of seven type I cases had no LHF-related complications; both type II cases had delayed union; and of six type III cases, two had delayed union with correction loss and one had overcorrection. These results suggest that Takeuchi type II and III LHFs are structurally unstable compared with type I. Cite this article: Bone Joint J 2015;97-B:1226-31.
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Hori Y, Tozaki T, Nambo Y, Sato F, Ishimaru M, Inoue-Murayama M, Fujita K. Evidence for the effect of serotonin receptor 1A gene (HTR1A
) polymorphism on tractability in Thoroughbred horses. Anim Genet 2015; 47:62-7. [DOI: 10.1111/age.12384] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/26/2015] [Indexed: 11/27/2022]
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69
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Nakamura M, Kaneko S, Wate R, Asayama S, Nakamura Y, Fujita K, Ito H, Kusaka H. Regionally different immunoreactivity for Smurf2 and pSmad2/3 in TDP-43-positive inclusions of amyotrophic lateral sclerosis. Neuropathol Appl Neurobiol 2015; 39:144-56. [PMID: 22435645 DOI: 10.1111/j.1365-2990.2012.01270.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
AIMS Smad ubiquitination regulatory factor-2 (Smurf2), an E3 ubiquitin ligase, can interact with Smad proteins and promote their ubiquitin-dependent degradation, thereby controlling the cellular levels of these signalling mediators. We previously reported that phosphorylated Smad2/3 (pSmad2/3) was sequestered in transactive response DNA-binding protein-43 (TDP-43) inclusions in the spinal cord of patients with amyotrophic lateral sclerosis (ALS). Recent biochemical and immunohistochemical studies on spinal cord and brain of ALS patients demonstrated that the composition of the TDP-43 inclusions is regionally distinct, suggesting different underlying pathogenic processes. We aimed to elucidate regional differences in pathomechanisms and composition of TDP-43 inclusions in relation to pSmad2/3 and Smurf2. METHODS The spinal cord and brain tissues of 13 sporadic ALS (SALS) patients were investigated using immunohistochemical analysis. RESULTS TDP-43-positive inclusions in lower motor neurones of SALS patients were immunopositive for Smurf2 and pSmad2/3. Multiple immunofluorescence staining for Smurf2, pSmad2/3, TDP-43 and ubiquitin revealed co-localization of these four proteins within the inclusions in lower motor neurones of SALS patients. Furthermore, the loss of nuclear pSmad2/3 immunoreactivity was observed in cells bearing TDP-43 inclusions. In contrast, TDP-43-positive inclusions in the extramotor neurones in the brain of SALS patients were noticeably negative for Smurf2 and pSmad2/3. In addition, pSmad2/3 immunoreactivity was preserved in the nuclei of inclusion-bearing cells. CONCLUSIONS This regional difference in the expression of Smurf2 and pSmad2/3 within TDP-43-positive inclusions might be one of the pathomechanisms underlying the loss of lower motor neurones and comparatively spared cortical neurones seen in ALS.
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Iwai T, Omura S, Honda K, Shibutani N, Fujita K, Yamashita Y, Takasu H, Murata S, Tohnai I. Mandible-first in bimaxillary orthognathic surgery: an accurate bimaxillary repositioning technique with straight locking miniplates. Int J Oral Maxillofac Surg 2015. [DOI: 10.1016/j.ijom.2015.08.145] [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]
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71
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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]
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72
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Tonoike A, Hori Y, Inoue-Murayama M, Konno A, Fujita K, Miyado M, Fukami M, Nagasawa M, Mogi K, Kikusui T. Copy number variations in the amylase gene (AMY2B) in Japanese native dog breeds. Anim Genet 2015; 46:580-3. [DOI: 10.1111/age.12344] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/02/2015] [Indexed: 11/30/2022]
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73
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Amano C, Minematsu H, Fujita K, Iwashita S, Adachi M, Igarashi K, Hinuma S. Nanoparticles Containing Curcumin Useful for Suppressing Macrophages In Vivo in Mice. PLoS One 2015; 10:e0137207. [PMID: 26361331 PMCID: PMC4567266 DOI: 10.1371/journal.pone.0137207] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2015] [Accepted: 08/14/2015] [Indexed: 11/18/2022] Open
Abstract
To explore a novel method using liposomes to suppress macrophages, we screened food constituents through cell culture assays. Curcumin was one of the strongest compounds exhibiting suppressive effects on macrophages. We subsequently tried various methods to prepare liposomal curcumin, and eventually succeeded in preparing liposomes with sufficient amounts of curcumin to suppress macrophages by incorporating a complex of curcumin and bovine serum albumin. The diameter of the resultant nanoparticles, the liposomes containing curcumin, ranged from 60 to 100 nm. Flow cytometric analyses revealed that after intraperitoneal administration of the liposomes containing curcumin into mice, these were incorporated mainly by macrophages positive for F4/80, CD36, and CD11b antigens. Peritoneal cells prepared from mice injected in vivo with the liposomes containing curcumin apparently decreased interleukin-6-producing activities. Major changes in body weight and survival rates in the mice were not observed after administrating the liposomes containing curcumin. These results indicate that the liposomes containing curcumin are safe and useful for the selective suppression of macrophages in vivo in mice.
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Takashima Y, Fujita K, Ardin A, Nagayama K, Nomura R, Nakano K, Matsumoto-Nakano M. Characterization of the dextran-binding domain in the glucan-binding protein C of Streptococcus mutans. J Appl Microbiol 2015; 119:1148-57. [DOI: 10.1111/jam.12895] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Revised: 05/22/2015] [Accepted: 06/09/2015] [Indexed: 11/30/2022]
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Matsubara H, Tamii A, Nakada H, Adachi T, Carter J, Dozono M, Fujita H, Fujita K, Fujita Y, Hatanaka K, Horiuchi W, Itoh M, Kawabata T, Kuroita S, Maeda Y, Navrátil P, von Neumann-Cosel P, Neveling R, Okamura H, Popescu L, Poltoratska I, Richter A, Rubio B, Sakaguchi H, Sakaguchi S, Sakemi Y, Sasamoto Y, Shimbara Y, Shimizu Y, Smit FD, Suda K, Tameshige Y, Tokieda H, Yamada Y, Yosoi M, Zenihiro J. Nonquenched Isoscalar Spin-M1 Excitations in sd-Shell Nuclei. PHYSICAL REVIEW LETTERS 2015; 115:102501. [PMID: 26382672 DOI: 10.1103/physrevlett.115.102501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2014] [Indexed: 06/05/2023]
Abstract
Differential cross sections of isoscalar and isovector spin-M1 (0(+)→1(+)) transitions are measured using high-energy-resolution proton inelastic scattering at E(p)=295 MeV on (24)Mg, (28)Si, (32)S, and (36)Ar at 0°-14°. The squared spin-M1 nuclear transition matrix elements are deduced from the measured differential cross sections by applying empirically determined unit cross sections based on the assumption of isospin symmetry. The ratios of the squared nuclear matrix elements accumulated up to E(x)=16 MeV compared to a shell-model prediction are 1.01(9) for isoscalar and 0.61(6) for isovector spin-M1 transitions, respectively. Thus, no quenching is observed for isoscalar spin-M1 transitions, while the matrix elements for isovector spin-M1 transitions are quenched by an amount comparable with the analogous Gamow-Teller transitions on those target nuclei.
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Uemura M, Nagahara A, Yamamoto Y, Takada S, Inagaki Y, Kinouchi T, Miyake O, Nakazawa S, Nishimura K, Arai H, Honda M, Okada K, Tsujihata M, Tsutahara K, Yamaguchi S, Kawashima A, Ujike T, Fujita K, Nonomura N. 2551 GnRH antagonist plus bicalutamide may be an effective therapy as initial combined androgen blockade for patients with high grade prostate cancer. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31370-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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77
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Kawashima A, Kanazawa T, Matsumoto M, Morimoto A, Iwahori K, Ujike T, Nagahara A, Fujita K, Uemura M, Nonomura N, Wada H. 2644 Comparison of PD-1 expression between circulating and tissue-infiltrating lymphocytes in renal cell carcinoma. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31461-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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78
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Yamamura Y, Matuura I, Nomura Y, Fujita K, Momoki N, Ueno A, Maruyama K, Hiramatu M, Yamamura M. THU0572 Heterogeneity of IGG4-Related Disease in Terms of Organ Damage, Treatment Response and Prognosis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.6484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Dann H, Fredin S, Cotanch K, Grant R, Kokko C, Ji P, Fujita K. Effects of corn-based reduced-starch diets using alternative carbohydrate sources on performance of lactating Holstein cows. J Dairy Sci 2015; 98:4041-54. [DOI: 10.3168/jds.2014-9078] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Accepted: 03/08/2015] [Indexed: 11/19/2022]
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Fujita K, Shibuto N, Yamamura Y, Nomura Y, Momoki N, Ueno A, Nakao K, Maruyama K, Yamamura M. SAT0539 TAFRO Syndrome: A Unique Mimicker of Systemic Lupus Erythematosus. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.5875] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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81
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Kitagawa Y, Mori Y, Komeda O, Ishii K, Hanayama R, Fujita K, Okihara S, Sekine T, Satoh N, Kurita T, Takagi M, Watari T, Kawashima T, Kan H, Nishimura Y, Sunahara A, Sentoku Y, Nakamura N, Kondo T, Fujine M, Azuma H, Motohiro T, Hioki T, Kakeno M, Miura E, Arikawa Y, Nagai T, Abe Y, Ozaki S, Noda A. Direct heating of a laser-imploded core by ultraintense laser-driven ions. PHYSICAL REVIEW LETTERS 2015; 114:195002. [PMID: 26024175 DOI: 10.1103/physrevlett.114.195002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Indexed: 06/04/2023]
Abstract
A novel direct core heating fusion process is introduced, in which a preimploded core is predominantly heated by energetic ions driven by LFEX, an extremely energetic ultrashort pulse laser. Consequently, we have observed the D(d,n)^{3}He-reacted neutrons (DD beam-fusion neutrons) with the yield of 5×10^{8} n/4π sr. Examination of the beam-fusion neutrons verified that the ions directly collide with the core plasma. While the hot electrons heat the whole core volume, the energetic ions deposit their energies locally in the core, forming hot spots for fuel ignition. As evidenced in the spectrum, the process simultaneously excited thermal neutrons with the yield of 6×10^{7} n/4π sr, raising the local core temperature from 0.8 to 1.8 keV. A one-dimensional hydrocode STAR 1D explains the shell implosion dynamics including the beam fusion and thermal fusion initiated by fast deuterons and carbon ions. A two-dimensional collisional particle-in-cell code predicts the core heating due to resistive processes driven by hot electrons, and also the generation of fast ions, which could be an additional heating source when they reach the core. Since the core density is limited to 2 g/cm^{3} in the current experiment, neither hot electrons nor fast ions can efficiently deposit their energy and the neutron yield remains low. In future work, we will achieve the higher core density (>10 g/cm^{3}); then hot electrons could contribute more to the core heating via drag heating. Together with hot electrons, the ion contribution to fast ignition is indispensable for realizing high-gain fusion. By virtue of its core heating and ignition, the proposed scheme can potentially achieve high gain fusion.
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82
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Ichikawa W, Uehara K, Minamimura K, Tanaka C, Takii Y, Miyauchi H, Sadahiro S, Fujita K, Moriwaki T, Nakamura M, Takahashi T, Tsuji A, Shinozaki K, Morita S, Ando Y, Okutani Y, Sugihara M, Sugiyama T, Ohashi Y, Sakata Y. An internally and externally validated nomogram for predicting the risk of irinotecan-induced severe neutropenia in advanced colorectal cancer patients. Br J Cancer 2015; 112:1709-16. [PMID: 25880011 PMCID: PMC4430714 DOI: 10.1038/bjc.2015.122] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Revised: 02/16/2015] [Accepted: 03/07/2015] [Indexed: 02/08/2023] Open
Abstract
Background: In Asians, the risk of irinotecan-induced severe toxicities is related in part to UGT1A1*6 (UGT, UDP glucuronosyltransferase) and UGT1A1*28, variant alleles that reduce the elimination of SN-38, the active metabolite of irinotecan. We prospectively studied the relation between the UGT1A1 genotype and the safety of irinotecan-based regimens in Japanese patients with advanced colorectal cancer, and then constructed a nomogram for predicting the risk of severe neutropenia in the first treatment cycle. Methods: Safety data were obtained from 1312 patients monitored during the first 3 cycles of irinotecan-based regimen in a prospective observational study. In development of the nomogram, multivariable logistic regression analysis was used to test the associations of candidate factors to severe neutropenia in the first cycle. The final nomogram based on the results of multivariable analysis was constructed and validated internally using a bootstrapping technique and externally in an independent data set (n=350). Results: The UGT1A1 genotype was confirmed to be associated with increased risks of irinotecan-induced grade 3 or 4 neutropenia and diarrhoea. The final nomogram included type of regimen, administered dose of irinotecan, gender, age, UGT1A1 genotype, Eastern Cooperative Oncology Group performance status, pre-treatment absolute neutrophil count, and total bilirubin level. The model was validated both internally (bootstrap-adjusted concordance index, 0.69) and externally (concordance index, 0.70). Conclusions: Our nomogram can be used before treatment to accurately predict the probability of irinotecan-induced severe neutropenia in the first cycle of therapy. Additional studies should evaluate the effect of nomogram-guided dosing on efficacy in patients receiving irinotecan.
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83
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Truby L, Abadeer A, Fujita K, Schulze P, Farr M, Yuzefpolskaya M, Colombo P, Takeda K, Mancini D, Naka Y, Takayama H. MELD XI Successfully Predicts Thirty Day Mortality in Patients Who Received Centrimag VAD for Acute Decompensated Heart Failure. J Heart Lung Transplant 2015. [DOI: 10.1016/j.healun.2015.01.556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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84
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Ito H, Shiwaku H, Yoshida C, Homma H, Luo H, Chen X, Fujita K, Musante L, Fischer U, Frints SGM, Romano C, Ikeuchi Y, Shimamura T, Imoto S, Miyano S, Muramatsu SI, Kawauchi T, Hoshino M, Sudol M, Arumughan A, Wanker EE, Rich T, Schwartz C, Matsuzaki F, Bonni A, Kalscheuer VM, Okazawa H. In utero gene therapy rescues microcephaly caused by Pqbp1-hypofunction in neural stem progenitor cells. Mol Psychiatry 2015; 20:459-71. [PMID: 25070536 PMCID: PMC4378255 DOI: 10.1038/mp.2014.69] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2014] [Revised: 04/10/2014] [Accepted: 05/12/2014] [Indexed: 12/21/2022]
Abstract
Human mutations in PQBP1, a molecule involved in transcription and splicing, result in a reduced but architecturally normal brain. Examination of a conditional Pqbp1-knockout (cKO) mouse with microcephaly failed to reveal either abnormal centrosomes or mitotic spindles, increased neurogenesis from the neural stem progenitor cell (NSPC) pool or increased cell death in vivo. Instead, we observed an increase in the length of the cell cycle, particularly for the M phase in NSPCs. Corresponding to the developmental expression of Pqbp1, the stem cell pool in vivo was decreased at E10 and remained at a low level during neurogenesis (E15) in Pqbp1-cKO mice. The expression profiles of NSPCs derived from the cKO mouse revealed significant changes in gene groups that control the M phase, including anaphase-promoting complex genes, via aberrant transcription and RNA splicing. Exogenous Apc4, a hub protein in the network of affected genes, recovered the cell cycle, proliferation, and cell phenotypes of NSPCs caused by Pqbp1-cKO. These data reveal a mechanism of brain size control based on the simple reduction of the NSPC pool by cell cycle time elongation. Finally, we demonstrated that in utero gene therapy for Pqbp1-cKO mice by intraperitoneal injection of the PQBP1-AAV vector at E10 successfully rescued microcephaly with preserved cortical structures and improved behavioral abnormalities in Pqbp1-cKO mice, opening a new strategy for treating this intractable developmental disorder.
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85
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Li B, Truby L, Fujita K, Ikeda S, Fukuhara S, Vargas L, Hart S, Naka Y, Takayama H. Feasibility of Long Term Use of External Continuous Flow Ventricular Assist Device. J Heart Lung Transplant 2015. [DOI: 10.1016/j.healun.2015.01.224] [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] Open
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86
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Abadeer A, Truby L, Fujita K, Vargas L, Hart S, Yuzefpolskaya M, Colombo P, Takeda K, Mancini D, Topkara V, Kurlansky P, Naka Y, Takayama H. High Mortality With Acute Kidney Injury After Mechanical Support for Cardiogenic Shock. J Heart Lung Transplant 2015. [DOI: 10.1016/j.healun.2015.01.591] [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] Open
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87
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Fujita K, Fujimoto M, Terajima H, Yazumi S. Education and imaging. Hepatology: pancreatic lymphoepithelial cyst mimicking mucinous cystic neoplasm. J Gastroenterol Hepatol 2015; 30:235. [PMID: 25619236 DOI: 10.1111/jgh.12829] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
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88
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Watanabe T, Nakada H, Takahashi T, Fujita K, Tanimoto Y, Sakae T, Kimoto S, Kawai Y. Potential for acceleration of bone formation after implant surgery by using a dietary supplement: an animal study. J Oral Rehabil 2015; 42:447-53. [PMID: 25572652 DOI: 10.1111/joor.12270] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/10/2014] [Indexed: 10/24/2022]
Abstract
Dental implant treatment is an effective modality to restore lost aesthetic and masticatory functions. However, healing after implant surgery takes at least 3-6 months. This prolonged healing period poses several difficulties for individuals with a large edentulous area and decreases their quality of life. Consequently, shortening the healing period and accelerating final prosthesis placement after surgery is very clinically important. Peri-implant bone formation may be enhanced by systemic approaches, such as the use of osteoporosis supplements, to promote bone metabolism. To confirm whether intake of a supplement developed for osteoporosis, synthetic bone mineral (SBM), was effective in accelerating peri-implant bone formation as part of the healing process after implantation. Twenty-four 5-week-old female Wistar rats were randomly assigned to receive a standardised diet without (control group, n = 12) or with SBM (n = 12). The rats had implant surgery at 8 weeks of age under general anaesthesia. The main outcome measures were bone mineral density (BMD) and pull-out strength in the implant and femur, which were compared between the groups at 2 and 4 weeks after implantation using the Mann-Whitney U test. BMD was significantly greater in the SBM group at 2 and 4 weeks after implantation compared to the control group. Pull-out strength was significantly greater in the SBM groups at 2 and 4 weeks after implantation compared to the control group. This study demonstrated that SBM could be effective in accelerating peri-implant bone formation during the healing period after implantation.
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89
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Ozawa T, Fujita K, Suzuki T. Development of an aerodynamic measurement system for hypersonic rarefied flows. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2015; 86:015105. [PMID: 25638120 DOI: 10.1063/1.4905569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A hypersonic rarefied wind tunnel (HRWT) has lately been developed at Japan Aerospace Exploration Agency in order to improve the prediction of rarefied aerodynamics. Flow characteristics of hypersonic rarefied flows have been investigated experimentally and numerically. By conducting dynamic pressure measurements with pendulous models and pitot pressure measurements, we have probed flow characteristics in the test section. We have also improved understandings of hypersonic rarefied flows by integrating a numerical approach with the HRWT measurement. The development of the integration scheme between HRWT and numerical approach enables us to estimate the hypersonic rarefied flow characteristics as well as the direct measurement of rarefied aerodynamics. Consequently, this wind tunnel is capable of generating 25 mm-core flows with the free stream Mach number greater than 10 and Knudsen number greater than 0.1.
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90
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Okawa R, Fujita K, Naka S, Nomura R, Nakano K. Epulis appeared after exfoliation of natal tooth in infant Japanese boy. PEDIATRIC DENTAL JOURNAL 2014. [DOI: 10.1016/j.pdj.2014.10.001] [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]
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91
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Matsumi Y, Fujita K, Takashima Y, Yanagida K, Morikawa Y, Matsumoto-Nakano M. Contribution of glucan-binding protein A to firm and stable biofilm formation by Streptococcus mutans. Mol Oral Microbiol 2014; 30:217-26. [PMID: 25256943 DOI: 10.1111/omi.12085] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/21/2014] [Indexed: 11/27/2022]
Abstract
Glucan-binding proteins (Gbps) of Streptococcus mutans, a major pathogen of dental caries, mediate the binding of glucans synthesized from sucrose by the action of glucosyltransferases (GTFs) encoded by gtfB, gtfC, and gtfD. Several stress proteins, including DnaK and GroEL encoded by dnaK and groEL, are related to environmental stress tolerance. The contribution of Gbp expression to biofilm formation was analyzed by focusing on the expression levels of genes encoding GTFs and stress proteins. Biofilm-forming assays were performed using GbpA-, GbpB-, and GbpC-deficient mutant strains and the parental strain MT8148. The expression levels of gtfB, gtfC, gtfD, dnaK, and groEL were evaluated by reverse transcription-quantitative polymerase chain reaction (RT-qPCR). Furthermore, the structure of biofilms formed by these Gbp-deficient mutant strains was observed using confocal laser scanning microscopy (CLSM). Biofilm-forming assay findings demonstrated that the amount formed by the GbpA-deficient mutant strain (AD1) was nearly the same as that by the parental strain, while the GbpB- and GbpC-deficient mutant strains produced lower amounts than MT8148. Furthermore, RT-qPCR assay results showed that the expressions of gtfB, dnaK, and groEL in AD1 were elevated compared with MT8148. CLSM also revealed that the structure of biofilm formed by AD1 was prominently different compared with that formed by the parental strain. These results suggest that a defect in GbpA influences the expression of genes controlling biofilm formation, indicating its importance as a protein for firm and stable biofilm formation.
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92
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Nabeoka Y, Kuroshima H, Fujita K. Can dogs infer physical properties of the apparatus by socially-given clues? J Vet Behav 2014. [DOI: 10.1016/j.jveb.2014.09.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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93
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Kuwano Y, Nishida K, Kajita K, Satake Y, Akaike Y, Fujita K, Kano S, Masuda K, Rokutan K. Transformer 2β and miR-204 regulate apoptosis through competitive binding to 3' UTR of BCL2 mRNA. Cell Death Differ 2014; 22:815-25. [PMID: 25342468 DOI: 10.1038/cdd.2014.176] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Revised: 09/16/2014] [Accepted: 09/17/2014] [Indexed: 01/10/2023] Open
Abstract
RNA-binding proteins and microRNAs are potent post-transcriptional regulators of gene expression. Human transformer 2β (Tra2β) is a serine/arginine-rich-like protein splicing factor and is now implicated to have wide-ranging roles in gene expression as an RNA-binding protein. RNA immunoprecipitation (RIP) with an anti-Tra2β antibody and microarray analysis identified a subset of Tra2β-associated mRNAs in HCT116 human colon cancer cells, many of which encoded cell death-related proteins including Bcl-2 (B-cell CLL/lymphoma 2). Tra2β knockdown in HCT116 cells decreased Bcl-2 expression and induced apoptosis. Tra2β knockdown accelerated the decay of BCL2α mRNA that encodes Bcl-2 and full-length 3' UTR, while it did not affect the stability of BCL2β mRNA having a short, alternatively spliced 3' UTR different from BCL2α 3' UTR. RIP assays with anti-Tra2β and anti-Argonaute 2 antibodies, respectively, showed that Tra2β bound to BCL2α 3' UTR, and that Tra2β knockdown facilitated association of miR-204 with BCL2α 3' UTR. The consensus sequence (GAA) for Tra2β-binding lies within the miR-204-binding site of BCL2 3' UTR. Mutation of the consensus sequence canceled the binding of Tra2β to BCL2 3' UTR without disrupting miR-204-binding to BCL2 3' UTR. Transfection of an anti-miR-204 or introduction of three-point mutations into the miR-204-binding site increased BCL2 mRNA and Bcl-2 protein levels. Inversely, transfection of precursor miR-204 reduced their levels. Experiments with Tra2β-silenced or overexpressed cells revealed that Tra2β antagonized the effects of miR-204 and upregulated Bcl-2 expression. Furthermore, TRA2β mRNA expression was significantly upregulated in 22 colon cancer tissues compared with paired normal tissues and positively correlated with BCL2 mRNA expression. Tra2β knockdown in human lung adenocarcinoma cells (A549) increased their sensitivity to anticancer drugs. Taken together, our findings suggest that Tra2β regulates apoptosis by modulating Bcl-2 expression through its competition with miR-204. This novel function may have a crucial role in tumor growth.
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Ardin AC, Fujita K, Nagayama K, Takashima Y, Nomura R, Nakano K, Ooshima T, Matsumoto-Nakano M. Identification and functional analysis of an ammonium transporter in Streptococcus mutans. PLoS One 2014; 9:e107569. [PMID: 25229891 PMCID: PMC4167856 DOI: 10.1371/journal.pone.0107569] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Accepted: 08/13/2014] [Indexed: 12/26/2022] Open
Abstract
Streptococcus mutans, a Gram-positive bacterium, is considered to be a major etiologic agent of human dental caries and reported to form biofilms known as dental plaque on tooth surfaces. This organism is also known to possess a large number of transport proteins in the cell membrane for export and import of molecules. Nitrogen is an essential nutrient for Gram-positive bacteria, though alternative sources such as ammonium can also be utilized. In order to obtain nitrogen for macromolecular synthesis, nitrogen-containing compounds must be transported into the cell. However, the ammonium transporter in S. mutans remains to be characterized. The present study focused on characterizing the ammonium transporter gene of S. mutans and its operon, while related regulatory genes were also analyzed. The SMU.1658 gene corresponding to nrgA in S. mutans is homologous to the ammonium transporter gene in Bacillus subtilis and SMU.1657, located upstream of the nrgA gene and predicted to be glnB, is a member of the PII protein family. Using a nrgA-deficient mutant strain (NRGD), we examined bacterial growth in the presence of ammonium, calcium chloride, and manganese sulfate. Fluorescent efflux assays were also performed to reveal export molecules associated with the ammonium transporter. The growth rate of NRGD was lower, while its fluorescent intensity was much higher as compared to the parental strain. In addition, confocal laser scanning microscopy revealed that the structure of biofilms formed by NRGD was drastically different than that of the parental strain. Furthermore, transcriptional analysis showed that the nrgA gene was co-transcribed with the glnB gene. These results suggest that the nrgA gene in S. mutans is essential for export of molecules and biofilm formation.
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95
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Fujita K, Okumura H, Masuo Y, Sunakawa Y, Shimada K, Kawara K, Akiyama Y, Sasaki Y, Kato Y. Change in Plasma Protein Binding of Sn-38, an Active Metabolite of Irinotecan, in Cancer Patients with Severe Renal Failure (Srf). Ann Oncol 2014. [DOI: 10.1093/annonc/mdu331.43] [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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96
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Hirose T, Fujita K, Kusumoto S, Oki Y, Murata Y, Sugiyama T, Ishida H, Shirai T, Nakashima M, Yamaoka T, Okuda K, Ohnishi T, Ohmori T, Sasaki Y, Tamura A, Ohta K. Association of Pharmacokinetics or Pharmacogenomics with Toxicity of Erlotinib in Patients with Recurrent Advanced Non-Small Cell Lung Cancer. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu349.16] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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97
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Yajima Y, Iwai T, Kitajima H, Ohara Y, Honda K, Shibutani N, Fujita K, Yamashita Y, Murata S, Omura S, Oshima M, Tohnai I. Evaluation of airway resistance and wall shear stress affected by mandibular setback surgery using computational fluid dynamics. J Oral Maxillofac Surg 2014. [DOI: 10.1016/j.joms.2014.06.227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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98
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Kitahata S, Fujita K, Takagi Y, Hara K, Hashimoto H, Tanimoto T, Koizumi K. Galactosylation at Side Chains of Branched Cyclodextrins by Various β-Galactosidases. Biosci Biotechnol Biochem 2014; 56:242-5. [PMID: 1368300 DOI: 10.1271/bbb.56.242] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The galactosyl transfer reaction to branched cyclodextrins (CDs) was investigated using lactose as a donor substrate and branched CDs as acceptors by various beta-galactosidases. Bacillus circulans beta-galactosidase synthesized galactosyl transfer products to branched CDs, of which the galactose residues were linked at side chains of branched CDs, not directly at CD rings. Aspergillus oryzae and Penicillium multicolor beta-galactosidases also produced derivatives galactosylated at side chains of branched CDs. The structures of main transgalactosylation products of branched CDs by these beta-galactosidases seem to be different from those by B. circulans beta-galactosidase, judging from the retention times on high performance liquid chromatography.
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Kitahata S, Hara K, Fujita K, Nakano H, Kuwahara N, Koizumi K. Acceptor Specificity of Cyclodextrin Glycosyltransferase fromBacillus stearothermophilusand Synthesis of α-D-GlucosylO-β-D-galactosyl-(1→4)-β-D-glucoside. Biosci Biotechnol Biochem 2014; 56:1386-91. [PMID: 1368942 DOI: 10.1271/bbb.56.1386] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Bacillus stearothermophilus CGTase had a wider acceptor specificity than Bacillus macerans CGTase did and produced large amounts of transfer products of various acceptors such as D-galactose, D-mannose, D-fructose, D- and L-arabinose, D- and L-fucose, L-rhamnose, D-glucosamine, and lactose, which were inefficient acceptors for B. macerans CGTase. The main component of the smallest transfer products of lactose was assumed to be alpha-D-glucosyl O-beta-D-galactosyl-(1----4)-beta-D-glucoside.
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100
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Nagayama K, Fujita K, Takashima Y, Ardin AC, Ooshima T, Matsumoto-Nakano M. Role of ABC transporter proteins in stress responses of Streptococcus mutans. ORAL HEALTH AND DENTAL MANAGEMENT 2014; 13:359-365. [PMID: 24984648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Streptococcus mutans possesses a number of ATP-binding cassette (ABC) transporters, which function as multiple sugar metabolism transporters and are promising targets for antimicrobial strategies. In the present study, we performed functional analyses of SMu0836 and SMu0837 products, which are possible ABC transporters. Isogenic mutant strains Δ0836 and Δ0837 were generated by insertional inactivation of SMu0836, and SMu0837, respectively, of strain MT8148 and found to be more sensitive to antibiotics as compared to MT8148. In addition, assays of membrane transport functions using a fluorescent probe showed that export pumps did not function properly in strain Δ0836. Expression of those genes was elevated when strain MT8148 was cultured with a sublethal concentration of tetracycline, as well as when exposed to heat shock, osmotic stress, and oxidative stress conditions. Furthermore, the expressions of other genes including SMu0374, SMu0215, SMu0475, SMu0986, and SMu1051, which encode possible ABC transporters, were also elevated when strain MT8148 was cultured with a sublethal concentration of tetracycline. Together, these results suggest that the products of SMu0836 and SMu0837 are ABC transporters, which may function in stress response.
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