51
|
Niwa Y, Koike M, Fujimoto Y, Oya H, Iwata N, Nishio N, Hiramatsu M, Kanda M, Kobayashi D, Tanaka C, Yamada S, Fujii T, Nakayama G, Sugimoto H, Nomoto S, Fujiwara M, Kodera Y. Salvage pharyngolaryngectomy with total esophagectomy following definitive chemoradiotherapy. Dis Esophagus 2016; 29:598-602. [PMID: 26338205 DOI: 10.1111/dote.12362] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Historically, total pharyngolaryngectomy with total esophagectomy has been the standard radical surgical treatment for synchronous cancer of the thoracoabdominal esophagus and pharyngolaryngeal region, and for cancer of the cervical esophagus that has invaded as far as the thoracic esophagus. Although definitive chemoradiotherapy that enables preservation of the larynx has often been the first choice of treatment for cancers involving the cervical esophagus, total pharyngolaryngectomy with total esophagectomy is required as a salvage therapy for cases involving failure of complete remission or locoregional recurrence after chemoradiotherapy. However, salvage esophageal surgery after definitive high-dose chemoradiotherapy is generally associated with high morbidity and mortality. The aim of this study was to examine the short-term outcome of salvage total pharyngolaryngectomy with total esophagectomy. From 2001 to 2014, nine patients underwent salvage total pharyngolaryngectomy with total esophagectomy at the Department of Gastroenterological Surgery, Nagoya University. The mortality and morbidity rates were high at 22% and 89%, respectively. Four patients (44%) developed tracheal necrosis, which in two patients eventually led to lethal hemorrhage. Salvage total pharyngolaryngectomy with total esophagectomy is an uncommon and highly demanding surgical procedure that should be carefully planned and conducted in selected centers of excellence. Measures must be taken to preserve the tracheal blood supply, thus avoiding fatal complications.
Collapse
|
52
|
Fujiwara M, Ijichi K, Tokuhisa K, Katsuura K, Wang GYS, Uemura D, Shigeta S, Konno K, Yokota T, Baba M. Ingenol Derivatives are Highly Potent and Selective Inhibitors of HIV Replication in Vitro. ACTA ACUST UNITED AC 2016. [DOI: 10.1177/095632029600700502] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Ingenol 3,5,20-triacetate has recently been identified as a highly potent and selective inhibitor of HIV replication in vitro. To evaluate the potential of ingenol derivatives as anti-HIV agents, several ingenol derivatives have been synthesized and investigated for their anti-HIV activities, structure-activity relationships, and possible mechanisms of action. Among the ingenol derivatives, 13-hydroxyingenol-3-(2,3-dimethylbutanoate)-13-dodecanoate (RD4-2138) proved to be a highly potent and selective inhibitor of HIV replication. Its 50% effective concentration for viral replication in MT-4 cells was 0.07-0.5 nM depending on viral strains, including HIV-2. This concentration was approximately 105-fold lower than its cytotoxic threshold. RD4-2138 was also inhibitory to the syncytium formation induced by cocultivation of Molt-4 cells with Molt-4/IIIB cells (Molt-4 cells chronically infected with HIV-1). Some correlation was observed with the ingenol derivatives between their inhibitory effects on HTLV-IIIB replication and surface CD4 expression in MT-4 cells, suggesting that the mechanism of inhibition is in part attributed to the inhibition of virus adsorption through down-regulation of CD4 molecules in the host cells. However, such correlation was not identified between the inhibition of HTLV-IIIB and the activation of protein kinase C. Thus, they might have a potential as effective anti-HIV agents when toxicity in vivo could be elucidated.
Collapse
|
53
|
Ryu SY, Ahn JK, Nakano T, Ahn DS, Ajimura S, Akimune H, Asano Y, Chang WC, Chen JY, Daté S, Ejiri H, Fujimura H, Fujiwara M, Fukui S, Hasegawa S, Hicks K, Horie K, Hotta T, Hwang SH, Imai K, Ishikawa T, Iwata T, Kato Y, Kawai H, Kino K, Kohri H, Kon Y, Kumagai N, Lin PJ, Maeda Y, Makino S, Matsuda T, Matsuoka N, Mibe T, Miyabe M, Miyachi M, Morino Y, Muramatsu N, Murayama R, Nakatsugawa Y, Nam SI, Niiyama M, Nomachi M, Ohashi Y, Ohkuma H, Ohta T, Ooba T, Oshuev DS, Parker JD, Rangacharyulu C, Sakaguchi A, Sawada T, Shagin PM, Shiino Y, Shimizu H, Strokovsky EA, Sugaya Y, Sumihama M, Tokiyasu AO, Toi Y, Toyokawa H, Tsunemi T, Uchida M, Ungaro M, Wakai A, Wang CW, Wang SC, Yonehara K, Yorita T, Yoshimura M, Yosoi M, Zegers RGT. Interference Effect between ϕ and Λ(1520) Production Channels in the γp→K^{+}K^{-}p Reaction near Threshold. PHYSICAL REVIEW LETTERS 2016; 116:232001. [PMID: 27341225 DOI: 10.1103/physrevlett.116.232001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Indexed: 06/06/2023]
Abstract
The ϕ-Λ(1520) interference effect in the γp→K^{+}K^{-}p reaction has been measured for the first time in the energy range from 1.673 to 2.173 GeV. The relative phases between ϕ and Λ(1520) production amplitudes were obtained in the kinematic region where the two resonances overlap. The measurement results support strong constructive interference when K^{+}K^{-} pairs are observed at forward angles but destructive interference for proton emission at forward angles. Furthermore, the observed interference effect does not account for the sqrt[s]=2.1 GeV bump structure in forward differential cross sections for ϕ photoproduction. This fact suggests possible exotic structures such as a hidden-strangeness pentaquark state, a new Pomeron exchange, or rescattering processes via other hyperon states.
Collapse
|
54
|
Fujiwara M, Nitta A, Chiba A. Regulation of sexual odor preference by sex steroids in the posterodorsal medial amygdala in female rats. Horm Behav 2016; 82:46-55. [PMID: 27178578 DOI: 10.1016/j.yhbeh.2016.05.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Revised: 04/19/2016] [Accepted: 05/05/2016] [Indexed: 10/21/2022]
Abstract
Our previous study in male rats demonstrated that bilateral administration of flutamide, an androgen receptor (AR) antagonist, into the posterodorsal medial amygdala (MePD) increased the time sniffing male odors to as high as that sniffing estrous odors, eliminating the preference for estrous odors over male odors. This made us speculate that under blockade of AR in the MePD, testosterone-derived estrogen acting on the same brain region arouses interest in male odors which is otherwise suppressed by concomitant action of androgen. In cyclic female rats, endogenous androgen has been thought to be involved in inhibitory regulation of estrogen-activated sexual behavior. Thus, in the present study, we investigated the possibility that in female rats the arousal of interest in male odors is also normally regulated by both estrogen and androgen acting on the MePD, as predicted by our previous study in male rats. Implantation of either the estrogen receptor blocker tamoxifen (TX) or a non-aromatizable androgen 5α-dihydrotestosterone (DHT) into the MePD of ovariectomized, estrogen-primed female rats eliminated preference for male odors over estrous odors by significantly decreasing the time sniffing male odors to as low as that sniffing estrous odors. The subsequent odor discrimination tests confirmed that the DHT and TX administration did not impair the ability to discriminate between male and estrous odors. These results suggest that in estrous female rats estrogen action in the MePD plays critical roles in the expression of the preference for male odors while androgen action in the same brain region interferes with the estrogen action.
Collapse
|
55
|
Fujiwara M, Kanayama K, Hirokawa YS, Shiraishi T. ASF-4-1 fibroblast-rich culture increases chemoresistance and mTOR expression of pancreatic cancer BxPC-3 cells at the invasive front in vitro, and promotes tumor growth and invasion in vivo. Oncol Lett 2016; 11:2773-2779. [PMID: 27073551 PMCID: PMC4812595 DOI: 10.3892/ol.2016.4289] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Accepted: 11/17/2015] [Indexed: 12/28/2022] Open
Abstract
Pancreatic cancer develops dense stromal tissue through the desmoplastic reaction. The aim of the present study was to assess the effects of a fibroblast-rich environment on the malignant potential of pancreatic cancer. Cells from the human pancreatic cancer cell line BxPC-3 were mixed at a ratio of 1:3 (fibroblast-rich) or 1:1 (fibroblast-poor) with cells from the human skin fibroblast line ASF-4-1. In the fibroblast-rich co-culture, tumor budding was observed and BxPC-3 cells were found to be more resistant to gemcitabine than those in the fibroblast-poor co-culture. Immunohistochemistry revealed that the expression of mammalian target of rapamycin was increased at the invasive front of fibroblast-rich co-cultures. In addition, in mouse xenografts of fibroblast-rich co-cultures, tumors were larger and had a higher Ki-67 index compared with that of the fibroblast-poor co-culture xenografts. These results indicate that fibroblast-rich co-cultures may promote the malignant potential of the pancreatic cancer cell line BxPC-3, both in vitro and in vivo.
Collapse
|
56
|
Nakada Y, Fujiwara M, Yakami M, Yokoyama T, Shirayama A, Yamamoto H, Nabatame K, Obara S, Akahane K, Blyth BJ, Miyazaki O, Date H, Yagi K, Hoshioka A, Shimada Y. Optimised paediatric CT dose at a tertiary children's hospital in Japan: a 4-y single-centre analysis. RADIATION PROTECTION DOSIMETRY 2016; 168:61-71. [PMID: 25669653 DOI: 10.1093/rpd/ncv004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Accepted: 01/09/2015] [Indexed: 06/04/2023]
Abstract
Since diagnostic reference levels (DRLs) for children are not currently established in Japan, the authors determined local DRLs for the full range of paediatric CT examinations in a single tertiary care children's hospital. A retrospective review of 4801 CT performance records for paediatric patients (<15 y old) who had undergone CT examinations from 2008 to 2011 was conducted. The most frequent examinations were of the head (52 %), followed by cardiac (15 %), temporal bone (9 %), abdomen (7 %), chest (6 %) and others (11 %). Approximately one-third of children received two or more CT scans. The authors' investigation showed that mean CTDIvol and DLP for head, chest and abdomen increased as a function of age. Benchmarking of the results showed that CTDIvol, DLP and effective dose for chest and abdomen examinations in this hospital were below average, whereas those for the head tended to be at or slightly above average of established DRL values from five countries. The results suggest that CT examinations as performed in a tertiary children's hospital in Japan are well optimised.
Collapse
|
57
|
Kai M, Fujiwara M, Miyoshi M, Nishiyama Y, Aoyama-Ishikawa M, Maeshige N, Inoue T, Uemura M, Yamashita H, Koga Y, Usami M. SUN-PP039: Up-Regulation of Hepatic Ppara and Pparγ in Endotoxemic Rats by Feeding Lard-Rich High-Fat Diet for 12 Weeks. Clin Nutr 2015. [DOI: 10.1016/s0261-5614(15)30190-4] [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]
|
58
|
Kobayashi D, Tanaka C, Kanda M, Iwata N, Yamada S, Nakayama G, Fujii T, Sugimoto H, Koike M, Fujiwara M, Kodera Y. MON-PP073: Impact of Body Weight Loss after Gastrectomy on the Postoperative S-1 Chemotherapy for Gastric Cancer. Clin Nutr 2015. [DOI: 10.1016/s0261-5614(15)30505-7] [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]
|
59
|
Kosaka K, Tanooka M, Inoue H, Tarutani K, Fujiwara M, Niwa Y, Takada Y, Doi H, Odawara S, Suzuki H, Kamikonya N, Hirota S. 634 Correlation analysis between pre-treatment verification precision and plan complexity or machine parameters using log files for VMAT delivery. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30370-7] [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]
|
60
|
Doi H, Beppu N, Kato T, Tanooka M, Kengo K, Tarutani K, Suzuki H, Odawara S, Niwa Y, Takada Y, Fujiwara M, Noda M, Tomita N, Kamikonya N, Hirota S. 2035 Diffusion-weighted magnetic resonance imaging for the prediction of the tumor response to neoadjuvant chemoradiotherapy using irinotecan plus S-1 for rectal cancer. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30958-3] [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]
|
61
|
Iwai T, Terasaki H, Aoyama A, Izumi Y, Umeda M, Heima S, Inoue Y, Fujiwara M. Arterial and Venous Invasion after Intraluminal Injection of Oral Bacteria (P. gingivalis) in a Rat Model shows Buerger Disease Pathology. Eur J Vasc Endovasc Surg 2015. [DOI: 10.1016/j.ejvs.2015.03.055] [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]
|
62
|
Dixon AR, Dynes JF, Lucamarini M, Fröhlich B, Sharpe AW, Plews A, Tam S, Yuan ZL, Tanizawa Y, Sato H, Kawamura S, Fujiwara M, Sasaki M, Shields AJ. High speed prototype quantum key distribution system and long term field trial. OPTICS EXPRESS 2015; 23:7583-7592. [PMID: 25837096 DOI: 10.1364/oe.23.007583] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Securing information in communication networks is an important challenge in today's world. Quantum Key Distribution (QKD) can provide unique capabilities towards achieving this security, allowing intrusions to be detected and information leakage avoided. We report here a record high bit rate prototype QKD system providing a total of 878 Gbit of secure key data over a 34 day period corresponding to a sustained key rate of around 300 kbit/s. The system was deployed over a standard 45 km link of an installed metropolitan telecommunication fibre network in central Tokyo. The prototype QKD system is compact, robust and automatically stabilised, enabling key distribution during diverse weather conditions. The security analysis includes an efficient protocol, finite key size effects and decoy states, with a quantified key failure probability of ε = 10⁻¹⁰.
Collapse
|
63
|
Yasui N, Kawamoto H, Fujiwara M, Aihara Y, Ogawa C, Hosono A, Suzuki S. High-dose chemotherapy for high-risk retinoblastoma: clinical course and outcome of 14 cases in the National Cancer Center, Japan. Bone Marrow Transplant 2014; 50:221-4. [PMID: 25437249 DOI: 10.1038/bmt.2014.256] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Revised: 08/26/2014] [Accepted: 09/12/2014] [Indexed: 11/09/2022]
Abstract
The prognosis of high-risk retinoblastoma (RB) with extraocular disease, relapse, or invasion of the cut end of the optic nerve is extremely poor. Following the discontinuation of thiotepa production in Japan, BU- and melphalan (Mel)-based regimens have been used, followed by the standard treatment for neuroblastoma. This study retrospectively analyzed 14 high-risk RB patients who underwent high-dose chemotherapy (HDC) and hematopoietic SCT; 8 received a BU/Mel conditioning regimen and 6 received other regimens. The disease status at HDC was relapse in 8 patients and extraocular involvement in 5. All patients received peripheral blood stem cell infusion >1.5 × 10(6)/kg. Engraftment occurred within a median of 11 days (BU/Mel: 10-13, others: 9-13). Primary toxicities included mucositis (⩾grade 3) in 9 patients (4 with BU/Mel, 5 with others). Veno-occlusive disease (VOD) occurred in two 1-year-old patients in the BU/Mel group. There were no treatment-related deaths. Of 4 (2 with BU/Mel, 2 with others) patients with central nervous system (CNS) relapse after HDC, 3 died. In conclusion, the BU/Mel regimen may be feasible for high-risk RB under careful monitoring for VOD, particularly in younger patients. CNS relapse associated with a lethal prognosis occurred after all regimens; therefore, further evaluation of HDC efficacy for high-risk RB is required.
Collapse
|
64
|
Kanda M, Shimizu D, Sugimoto H, Oya H, Hibino S, Takami H, Hashimoto R, Okamura Y, Yamada S, Fujii T, Nakayama G, Koike M, Nomoto S, Fujiwara M, Kodera Y. B-Cell Translocation Gene 1 Serves As a Novel Prognostic Indicator of Hepatocellular Carcinoma. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu334.120] [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
|
65
|
Miyoshi M, Fujiwara M, Aoyama-Ishikawa M, Nishiokada A, Kai M, Nishiyama Y, Maeshige N, Usami M. PP079-SUN: Oral Administration of Tributyrin Attenuates Lipopolysaccharide-Induced Intestinal Injury in Rat. Clin Nutr 2014. [DOI: 10.1016/s0261-5614(14)50121-5] [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]
|
66
|
Shimizu D, Kanda M, Sugimoto H, Oya H, Takami H, Hibino S, Hashimoto R, Okamura Y, Yamada S, Fujii T, Nakayama G, Koike M, Nomoto S, Fujiwara M, Kodera Y. Identification of Intragenic Methylation in the Tusc1 Gene As a Novel Prognostic Marker of Hepatocellular Carcinoma. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu334.121] [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
|
67
|
Nishiokada A, Miyoshi M, Fujiwara M, Aoyama-Ishikawa M, Nishiyama Y, Kai M, Maeshige N, Takahashi M, Hamada Y, Usami Y, Arita M, Usami M. PP010-SUN: Changes of Hepatic Lipid Mediators Associated with Intake of High-Fat Diet for 12 Weeks in Endotoxemic Rats using LC-ESI-MS/MS. Clin Nutr 2014. [DOI: 10.1016/s0261-5614(14)50052-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
68
|
Odawara S, Doi H, Tsujimura T, Shikata T, Suzuki H, Kosaka K, Inoue H, Tanooka M, Takada Y, Niwa Y, Fujiwara M, Kamikonya N, Hirota S. Polaprezinc Protects Intestinal Epithelium From Radiation-Induced Damage in Mice. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.2263] [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]
|
69
|
Hayashi A, Hirokawa YS, Kagaya M, Fujiwara M, Yoneda M, Kanayama K, Uchida K, Ishii K, Shiraishi T. Inflammatory suppressive effect of prostate cancer cells with prolonged exposure to transforming growth factor β on macrophage-differentiated cells via downregulation of prostaglandin E 2.. Oncol Lett 2014; 8:1513-1518. [PMID: 25202359 PMCID: PMC4156195 DOI: 10.3892/ol.2014.2402] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Accepted: 07/01/2014] [Indexed: 01/17/2023] Open
Abstract
Transforming growth factor β1 (TGFβ1) regulates a variety of cellular functions, including cell growth, apoptosis and differentiation. The aim of the current study was to investigate the alterations of phenotypic events in the long-term exposure of prostate cancer (PCa) cells to TGFβ1 and its effect on macrophage-differentiated cells. The PCa cell line, PC-3, and the subclone, M1, were exposed to TGFβ1 for short- or long-term periods. TGFβ1 signaling was assessed by Smad3 phosphorylation, and non-canonical signaling was analyzed by quantitative polymerase chain reaction-based regulatory gene expression profiles. TGFβ1-exposed PCa cells were also co-cultured with phorbol 12-myristate 13-acetate (PMA)-treated THP-1 macrophages as a model of the tumor microenvironment. The phosphorylation of Smad3 in the PCa cells with long-term exposure was lower than that in the PCa cells with short-term exposure. Interleukin-6 mRNA expression in the PMA-treated THP-1 macrophages was significantly downregulated by co-culture with the PCa cells with long-term exposure. Cyclooxygenase-2 expression in the long-term TGFβ1-exposed PCa cells was lower than that in the control PCa cells, and the production of prostaglandin E2 (PGE2) in the long-term TGFβ1-exposed PCa cells was also significantly lower. The results of the current study demonstrated that the long-term TGFβ1 exposure of PCa cells induces phenotypic changes, including the downregulation of PGE2 production. This indicates that prolonged TGFβ-exposed PCa cells may change the cytokine production of macrophages in the tumor microenvironment.
Collapse
|
70
|
Muroi C, Fujioka M, Mishima K, Irie K, Fujimura Y, Nakano T, Fandino J, Keller E, Iwasaki K, Fujiwara M. Effect of ADAMTS-13 on cerebrovascular microthrombosis and neuronal injury after experimental subarachnoid hemorrhage. J Thromb Haemost 2014; 12:505-14. [PMID: 24476338 DOI: 10.1111/jth.12511] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2013] [Accepted: 12/17/2013] [Indexed: 11/30/2022]
Abstract
BACKGROUND Microthrombosis and reactive inflammation contribute to neuronal injury after subarachnoid hemorrhage (SAH). ADAMTS-13 cleaves von Willebrand factor multimers, and inhibits thrombus formation and, seemingly, inflammatory reactions. OBJECTIVE To investigate the effect of ADAMTS-13 in experimental SAH. METHODS A total of 100 male C57/BL6 mice were randomly assigned to four groups: sham (n = 15), SAH (n = 27), vehicle (n = 25), and ADAMTS-13 (n = 23; 100 μL per 10 g of body weight of 100 μg of ADAMTS-13 per 1 mL of 0.9% NaCl; 20 min after SAH). Neurologic performance was assessed on days 1 and 2 after SAH. Animals were killed on day 2. The amounts of subarachnoid blood, microthrombi, apoptosis and degenerative neurons were compared. The degree of neuronal inflammation and vasospasm was also compared. In five mice each (SAH and ADAMTS-13 groups), bleeding time was assessed 2 h after SAH. RESULTS Systemic administration of ADAMTS-13 achieved significant amelioration of microthrombosis and improvement in neurologic performance. ADAMTS-13 reduced the amount of apoptotic and degenerative neurons. A tendency for decreased neuronal inflammation was observed. ADAMTS-13 did not show any significant effect on vasospasm. The degree of systemic inflammation was not changed by ADAMTS-13 administration. ADAMTS-13 neither increased the amount of subarachnoid blood nor prolonged the bleeding time. CONCLUSIONS ADAMTS-13 may reduce neuronal injury after SAH by reducing microthrombosis formation and neuronal inflammation, thereby providing a new option for mitigating the severity of neuronal injury after SAH.
Collapse
|
71
|
Kakinoki K, Okano K, Oshima M, Suto H, Kashiwagi H, Yamamoto N, Akamoto S, Fujiwara M, Yachida S, Takama T, Hagiike M, Usuki H, Kamata H, Masaki T, Suzuki Y. A novel triple secured technique for pancreatic reconstruction following pancreaticoduodenectomy for a soft pancreas. HEPATO-GASTROENTEROLOGY 2014; 61:469-474. [PMID: 24901164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
BACKGROUND/AIMS Soft pancreases are susceptible to developing pancreatic fistula following pancreaticoduodenectomy. To reduce the incidence of pancreatic fistula after pancreaticoduodenectomy in patients with a soft pancreas, we developed a triple secured technique. In this study, we describe the details of this technique and also report on the postoperative outcomes. METHODOLOGY The triple secured technique employed an ultrasonic dissector for pancreatic transection with skeletonizing and ligating of the small pancreatic branch ducts, duct-invagination or duct-to-mucosa anastomosis for main pancreatic duct management, and, finally, four large stitches between the pancreatic stump parenchyma and the jejunal seromuscular layer to prevent minor pancreatic leakage. A total of 28 consecutive patients with a soft pancreas who underwent pancreaticoduodenectomy using our technique were included in this study. RESULTS Postopetrative complications occurred in 16 patients. Grade B pancreatic fistula developed in 6 patients. However, no grade C pancreatic fistula occurred in this series. Neither any reoperation nor in-hospital mortality was observed in this series. CONCLUSIONS Our triple secured technique after pancreaticoduodenectomy was feasible and safe, with an acceptable rate of grade B pancreatic fistula and no grade C pancreatic fistula for patients with a soft pancreas.
Collapse
|
72
|
Kobayashi D, Iwata N, Kanda M, Tanaka C, Yamada S, Nakayama G, Fujii T, Sugimoto H, Koike M, Nomoto S, Fujiwara M, Kodera Y. Treatment Strategy against Gastric Cancer with Peritoneal Metastasis in Its Early Developing Phase. J Surg Res 2014. [DOI: 10.1016/j.jss.2013.11.896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
73
|
Kohama K, Nakao A, Terashima M, Ishikawa M, Shimizu T, Harada D, Nakayama M, Yamashita H, Fujiwara M, Kotani J. Supplementation of Parenteral Nutrition with Fish Oil Attenuates LPS-induced Acute Lung Injury in Rats. J Surg Res 2014. [DOI: 10.1016/j.jss.2013.11.618] [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]
|
74
|
Oya H, Kanda M, Takami H, Hibino S, Shimizu D, Niwa Y, Koike M, Nomoto S, Yamada S, Nishikawa Y, Asai M, Fujii T, Nakayama G, Sugimoto H, Fujiwara M, Kodera Y. Overexpression of melanoma-associated antigen D4 is an independent prognostic factor in squamous cell carcinoma of the esophagus. Dis Esophagus 2013; 28:188-95. [PMID: 24147998 DOI: 10.1111/dote.12156] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
To pursue an urgently needed treatment target for esophageal cancer (EC), we investigated the function of the recently discovered melanoma-associated antigen (MAGE)-D4 in squamous cell EC. MAGE-D4 messenger RNA (mRNA) expression was analyzed in nine EC cell lines using quantitative reverse transcription polymerase chain reaction. In 65 surgical specimens of squamous cell EC with no prior neoadjuvant therapy, MAGE-D4 mRNA expression in EC tissues and corresponding normal tissues was analyzed and compared, and evaluated in terms of clinicopathological factors. In representative cases, MAGE-D4 protein distribution was analyzed immunohistochemically. The heterogeneity of MAGE-D4 mRNA expression was confirmed in EC cell lines by quantitative reverse transcription polymerase chain reaction. In surgical specimens, MAGE-D4 mRNA expression was significantly higher in EC tissues than in corresponding normal tissues (P < 0.001). Patients with the highest MAGE-D4 mRNA expression in EC tissues (top quartile, n = 17) had significantly shorter overall survival than patients with low expression (2-year survival: 44% and 73%, respectively, P = 0.006). Univariate analysis identified age (≥65 years), lymphatic involvement, and high MAGE-D4 mRNA expression as significant prognostic factors; high MAGE-D4 mRNA expression was also an independent prognostic factor in multivariable analysis (hazard ratio: 2.194; P = 0.039) and was significantly associated with Brinkman index (P = 0.008) and preoperative carcinoembryonic antigen level (P = 0.002). Immunohistochemical MAGE-D4b expression was consistent with MAGE-D4 mRNA profiling. Our results suggest that MAGE-D4 overexpression influences tumor progression, and MADE-D4 can be a prognostic marker and a potential molecular target in squamous cell EC.
Collapse
|
75
|
Mori H, Kobara H, Rafiq K, Nishiyama N, Fujihara S, Kobayashi M, Oryu M, Fujiwara M, Suzuki Y, Masaki T. New flexible endoscopic full-thickness suturing device: a triple-arm-bar suturing system. Endoscopy 2013; 45:649-54. [PMID: 23881805 DOI: 10.1055/s-0033-1344156] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND STUDY AIM A reliable full-thickness suturing device is necessary for pure natural orifice transluminal endoscopic surgery (NOTES). The present study focused on assessing the reliability of a new suturing device. METHODS A total of 60 single sutures were tested to close 5-cm incisions in 8-cm square pieces of resected swine stomach. Each incision was sutured by an over-the-scope clip (OTSC; n = 20), a single hand-sewn stitch (n = 20), or a single triple-arm-bar suturing system (TBSS) stitch. The maximum pulling force durability (MPD) of each suture was tested. To assess the reliability of the TBSS for endoscopic full-thickness resection (EFTR), 60 EFTRs of 50 mm diameter were performed on excised swine stomachs. After EFTR, full-thickness sutures were made using 3-stitch OTSCs (n = 20), 10-stitch hand-sewn sutures (n = 20), or 10-stitch TBSS sutures (n = 20). Outcomes were the MPD test for both single stitch and multiple stitch applications and the suturing time for single-stitch sutures. RESULTS In the single-stitch MPD tests, there were significant differences between OTSCs and hand-sewn sutures (P = 0.0002) and between OTSCs and TBSS sutures (P = 0.0001), but no significant difference between hand-sewn and TBSS sutures. The multiple-stitch sutures revealed significant differences between OTSCs and hand-sewn sutures (P = 0.0039), and between OTSCs and TBSS sutures (P = 0.013). There was no significant difference between hand-sewn and TBSS sutures. There were significant differences in suture times between OTSC, hand-sewn sutures, and TBSS sutures (P < 0.05). CONCLUSIONS Both single-stitch and multiple-stitch sutures using TBSS have similar strength to hand-sewn sutures. TBSS is a reliable suturing device.
Collapse
|
76
|
Murakami K, Saito M, Komagata Y, Yoshihara K, Kaname S, Arimura Y, Yamada A, Nakamoto Y, Ishida M, Hikgaki M, Takizawa H, Kawauchi R, Goya T, Fujiwara M, Yazawa T, Kamma H. A case of lung biopsy-proven MPO-ANCA positive granulomatosis with polyangiitis (GPA; Wegener's granulomatosis). Presse Med 2013. [DOI: 10.1016/j.lpm.2013.02.142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
|
77
|
Fujiwara M, Kamikonya N, Tanooka M, Miura H, Doi H, Takada Y, Terada T, Uwa N, Sagawa K, Hirota S. Hypothyroidism After Radiation Therapy for Head-and-Neck Cancer: The Retrospective DVH Analysis of 75 Patients -- Volume of Thyroid Gland Spared From Doses Can Be a New Dose Constraint for Treatment Planning? Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.1388] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
78
|
Kubokawa H, Fujiwara M, Nasuno T, Miura M, Yamamoto MK, Satoh M. Analysis of the tropical tropopause layer using the Nonhydrostatic Icosahedral Atmospheric Model (NICAM): 2. An experiment under the atmospheric conditions of December 2006 to January 2007. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/2012jd017737] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
79
|
Sun X, Fujiwara M, Kuse N, Oka S, Takiguchi M. Different abilities of CTL specific for two HLA-A*24:02-restricted overlapping optimal epitopes to select same HIV-1 escape mutant virus. Retrovirology 2012. [PMCID: PMC3441617 DOI: 10.1186/1742-4690-9-s2-p268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
80
|
Sakazaki T, Fujiwara M, Zhang X, Hagan ME, Forbes JM. Diurnal tides from the troposphere to the lower mesosphere as deduced from TIMED/SABER satellite data and six global reanalysis data sets. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/2011jd017117] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
81
|
Shibata T, Hayashi M, Naganuma A, Hara N, Hara K, Hasebe F, Shimizu K, Komala N, Inai Y, Vömel H, Hamdi S, Iwasaki S, Fujiwara M, Shiotani M, Ogino SY, Nishi N. Cirrus cloud appearance in a volcanic aerosol layer around the tropical cold point tropopause over Biak, Indonesia, in January 2011. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/2011jd017029] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
82
|
Tanooka M, Miura E, Inoue H, Doi H, Takada Y, Fujiwara M, Ishimaru F, Sakamoto K, Kamikonya N, Hirota S. EP-1535 CARBON-FIBER COUCH MODELING OPTIMIZATION FOR MONACO VMAT PLANNING AND DELIVERY. Radiother Oncol 2012. [DOI: 10.1016/s0167-8140(12)71868-6] [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]
|
83
|
Miura H, Tanooka M, Fujiwara M, Doi H, Inoue H, Takada Y, Kamikonya N, Hirota S. EP-1519 COMPARISON OF FULL-ARC AND HALF-ARC VOLUMETRIC MODULATED ARC THERAPY (VMAT) FOR MAXILLARY CANCER. Radiother Oncol 2012. [DOI: 10.1016/s0167-8140(12)71852-2] [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]
|
84
|
Doi H, Ishimaru F, Tanooka M, Miura H, Inoue H, Takada Y, Fujiwara M, Yamamoto S, Kamikonya N, Hirota S. EP-1104 IS OBESITY CORRELATED WITH GASTROINTESTINAL TOXICITY INDUCED BY RADIOTHERAPY FOR PROSTATE CANCER? Radiother Oncol 2012. [DOI: 10.1016/s0167-8140(12)71437-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
85
|
Hwang SH, Hicks K, Ahn JK, Nakano T, Ahn DS, Chang WC, Chen JY, Daté S, Ejiri H, Fujimura H, Fujiwara M, Fukui S, Gohn W, Hotta T, Imai K, Ishikawa T, Joo K, Kato Y, Kohri H, Kon Y, Lee HS, Maeda Y, Miyabe M, Mibe T, Morino Y, Muramatsu N, Nakatsugawa Y, Niiyama M, Noumi H, Oh Y, Ohashi Y, Ohta T, Oka M, Parker J, Rangacharyulu C, Ryu SY, Sawada T, Sugaya Y, Sumihama M, Tsunemi T, Uchida M, Ungaro M, Yosoi M. Spin-density matrix elements for γp→K*0Σ+ at Eγ=1.85-3.0 GeV with evidence for the κ(800) meson exchange. PHYSICAL REVIEW LETTERS 2012; 108:092001. [PMID: 22463625 DOI: 10.1103/physrevlett.108.092001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2011] [Indexed: 05/31/2023]
Abstract
The exclusive reaction γp→K(+)π(-)Σ(+) was measured for the first time using linearly polarized photons at beam energies from 1.85 to 2.96 GeV. Angular distributions in the rest frame of the K(+)π(-) system were fitted to extract spin-density matrix elements of the K(*0) decay. The measured parity spin asymmetry shows that natural-parity exchange is dominant in this reaction. This result clearly indicates the need for t-channel exchange of the κ(800) scalar meson.
Collapse
|
86
|
Fujiwara M, Harada K, Mizuno T, Nishida M, Mizukoshi T, Mizuno M, Uechi M. Surgical treatment of severe pulmonic stenosis under cardiopulmonary bypass in small dogs. J Small Anim Pract 2012; 53:89-94. [DOI: 10.1111/j.1748-5827.2011.01163.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
87
|
Nambu Y, Takahashi S, Yoshino K, Tanaka A, Fujiwara M, Sasaki M, Tajima A, Yorozu S, Tomita A. Efficient and low-noise single-photon avalanche photodiode for 1.244-GHz clocked quantum key distribution. OPTICS EXPRESS 2011; 19:20531-20541. [PMID: 21997060 DOI: 10.1364/oe.19.020531] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
An efficient and low-noise 1.244-GHz gating InGaAs single-photon avalanche photodiode (SAPD) was developed for a high-speed quantum key distribution (QKD) system. An afterpulsing probability of 0.61% and a dark count probability per gate of 0.71 ×10-6 were obtained at a detection efficiency of 10.9% for 1.55-µm photons. Furthermore, our SAPD successfully coped with high detection efficiency (≤ 25%) and quite low afterpulsing noise (≤ 3% for ≤ 25% efficiency) at the same time. Its potential was verified using the actual QKD setups installed over a metropolitan area network.
Collapse
|
88
|
Inoue H, Tanooka M, Doi H, Miura E, Takada Y, Fujiwara M, Yasumasa K, Sakamoto K, Kamikonya N, Hirota S. Impact of Choice of Algorithm and Clip box Position on the Automatic Image Registration for Prostate Cancer Treatment. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.1197] [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]
|
89
|
Eguchi T, Takasuna K, Fujiwara M, Yoshida K. Coexistence of a pulmonary adenocarcinoma with a focal organizing pneumonia. Interact Cardiovasc Thorac Surg 2011; 13:444-6. [DOI: 10.1510/icvts.2011.275065] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
|
90
|
Fujiwara M, Tanaka A, Takahashi S, Yoshino K, Nambu Y, Tajima A, Miki S, Yamashita T, Wang Z, Tomita A, Sasaki M. Afterpulse-like phenomenon of superconducting single photon detector in high speed quantum key distribution system. OPTICS EXPRESS 2011; 19:19562-19571. [PMID: 21996897 DOI: 10.1364/oe.19.019562] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We discuss our estimates of the performance of a superconducting single photon detector (SSPD) in a high speed quantum key distribution (QKD) system. We find that at high repetition operation reflections from the readout circuit at room temperature causes an afterpulse-like phenomenon, and drastically increases the quantum bit error rate (QBER). Such effects are not seen during low frequency operation. By using an amplifier with a small reflection coefficient S11, we succeed in reducing the afterpulse-like phenomenon and increasing a secure key rate.
Collapse
|
91
|
Sairaku A, Nakano Y, Oda N, Makita Y, Kajihara K, Tokuyama T, Motoda C, Fujiwara M, Kihara Y. Prediction of sinus node dysfunction in patients with persistent atrial flutter using the flutter cycle length. Europace 2011; 14:380-7. [DOI: 10.1093/europace/eur305] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
92
|
Inoue H, Tanooka M, Miura E, Doi H, Takada Y, Fujiwara M, Yasumasa K, Sakamoto K, Kamikonya N, Hirota S. 2016 POSTER Impact of Choice of Algorithm and Clip Box Position on the Automatic Image Registration for Prostate Cancer. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)70974-1] [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]
|
93
|
Doi H, Kamikonya N, Takada Y, Fujiwara M, Miura H, Inoue H, Tanooka M, Nakamura T, Tsujimura T, Hirota S. 2033 POSTER Radiation-induced Rectal Toxicity in Rats on Low-dose Aspirin Therapy. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)70991-1] [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]
|
94
|
Doi H, Kamikonya N, Takada Y, Fujiwara M, Miura H, Inoue H, Tanooka M, Shikata T, Tsujimura T, Hirota S. 2032 POSTER Radiation-induced Microangiopathy in the Rectum Using an Animal Experimental Model. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)70990-x] [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]
|
95
|
Ohgo Y, Hashizume D, Takahashi K, Mori H, Hayami S, Fujiwara M, Neya S, Namatame Y, Nakamura M. Implication to the catalytic process of hemeproteins. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311089264] [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
|
96
|
Yuki D, Sugiura Y, Zaima N, Akatsu H, Hashizume Y, Yamamoto T, Fujiwara M, Sugiyama K, Setou M. Hydroxylated and non-hydroxylated sulfatide are distinctly distributed in the human cerebral cortex. Neuroscience 2011; 193:44-53. [PMID: 21802498 DOI: 10.1016/j.neuroscience.2011.07.045] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2011] [Revised: 07/18/2011] [Accepted: 07/19/2011] [Indexed: 10/17/2022]
Abstract
Sulfatide (ST) is a sphingolipid with an important role in the central nervous system as a major component of the myelin sheath. ST contains a structurally variable ceramide moiety, with a fatty acid substituent of varying carbon-chain length and double-bond number. Hydroxylation at the α-2 carbon position of the fatty acid is found in half the population of ST molecules. Recent genetic studies of fatty acid 2-hydroxylase (FA2H) indicate that these hydroxylated sphingolipids influence myelin sheath stability. However, their distribution is unknown. Matrix-assisted laser desorption/ionization imaging mass spectrometry (MALDI-IMS) enables the analysis of distinct distributions of individual ST molecular species in tissue section. We examined human cerebral cortex tissue sections with MALDI-IMS, identifying and characterizing the distributions of 14 ST species. The distribution analysis reveals that the composition ratios of non-hydroxylated/hydroxylated STs are clearly reversed at the border between white and gray matter; the hydroxylated group is the dominant ST species in the gray matter. These results suggest that hydroxylated STs are highly expressed in oligodendrocytes in gray matter and might form stable myelin sheaths. As a clinical application, we analyzed a brain with Alzheimer's disease (AD) as a representative neurodegenerative disease. Although previous studies of AD pathology have reported that the amount of total ST is decreased in the cerebral cortex, as far as the compositional distributions of STs are concerned, AD brains were similar to those in control brains. In conclusion, we suggest that MALDI-IMS is a useful tool for analysis of the distributions of various STs and this application might provide novel insight in the clinical study of demyelinating diseases.
Collapse
|
97
|
Sairaku A, Nakano Y, Oda N, Makita Y, Kajihara K, Tokuyama T, Motoda C, Fujiwara M, Kihara Y. How many electrical cardioversions should be applied for repetitive recurrences of atrial arrhythmias following ablation of persistent atrial fibrillation? Europace 2011; 13:1703-8. [DOI: 10.1093/europace/eur244] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
98
|
Sasaki M, Fujiwara M, Ishizuka H, Klaus W, Wakui K, Takeoka M, Miki S, Yamashita T, Wang Z, Tanaka A, Yoshino K, Nambu Y, Takahashi S, Tajima A, Tomita A, Domeki T, Hasegawa T, Sakai Y, Kobayashi H, Asai T, Shimizu K, Tokura T, Tsurumaru T, Matsui M, Honjo T, Tamaki K, Takesue H, Tokura Y, Dynes JF, Dixon AR, Sharpe AW, Yuan ZL, Shields AJ, Uchikoga S, Legré M, Robyr S, Trinkler P, Monat L, Page JB, Ribordy G, Poppe A, Allacher A, Maurhart O, Länger T, Peev M, Zeilinger A. Field test of quantum key distribution in the Tokyo QKD Network. OPTICS EXPRESS 2011; 19:10387-10409. [PMID: 21643295 DOI: 10.1364/oe.19.010387] [Citation(s) in RCA: 164] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
A secure communication network with quantum key distribution in a metropolitan area is reported. Six different QKD systems are integrated into a mesh-type network. GHz-clocked QKD links enable us to demonstrate the world-first secure TV conferencing over a distance of 45km. The network includes a commercial QKD product for long-term stable operation, and application interface to secure mobile phones. Detection of an eavesdropper, rerouting into a secure path, and key relay via trusted nodes are demonstrated in this network.
Collapse
|
99
|
Tanooka M, Inoue H, Doi H, Takada Y, Fujiwara M, Okuhata K, Ishimaru F, Yamashita T, Sakai T, Nakagawa H, Oda M, Yasumasa K, Sakamoto K, Kamikonya N, Hirota S. 1096 poster NOVEL SPIRAL PHANTOM FOR VOLUMETRIC MODULATED ARC THERAPY DELIVERY VERIFICATION. Radiother Oncol 2011. [DOI: 10.1016/s0167-8140(11)71218-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
100
|
Antonov A, Gaidarov M, Ivanov M, Kadrev D, Aïche M, Barreau G, Czajkowski S, Jurado B, Belier G, Chatillon A, Granier T, Taieb J, Doré D, Letourneau A, Ridikas D, Dupont E, Berthoumieux E, Panebianco S, Farget F, Schmitt C, Audouin L, Khan E, Tassan-Got L, Aumann T, Beller P, Boretzky K, Dolinskii A, Egelhof P, Emling H, Franzke B, Geissel H, Kelic-Heil A, Kester O, Kurz N, Litvinov Y, Münzenberg G, Nolden F, Schmidt KH, Scheidenberger C, Simon H, Steck M, Weick H, Enders J, Pietralla N, Richter A, Schrieder G, Zilges A, Distler M, Merkel H, Müller U, Junghans A, Lenske H, Fujiwara M, Suda T, Kato S, Adachi T, Hamieh S, Harakeh M, Kalantar-Nayestanaki N, Wörtche H, Berg G, Koop I, Logatchov P, Otboev A, Parkhomchuk V, Shatilov D, Shatunov P, Shatunov Y, Shiyankov S, Shvartz D, Skrinsky A, Chulkov L, Danilin B, Korsheninnikov A, Kuzmin E, Ogloblin A, Volkov V, Grishkin Y, Lisin V, Mushkarenkov A, Nedorezov V, Polonski A, Rudnev N, Turinge A, Artukh A, Avdeichikov V, Ershov S, Fomichev A, Golovkov M, Gorshkov A, Grigorenko L, Klygin S, Krupko S, Meshkov I, Rodin A, Sereda Y, Seleznev I, Sidorchuk S, Syresin E, Stepantsov S, Ter-Akopian G, Teterev Y, Vorontsov A, Kamerdzhiev S, Litvinova E, Karataglidis S, Alvarez Rodriguez R, Borge M, Fernandez Ramirez C, Garrido E, Sarriguren P, Vignote J, Fraile Prieto L, Lopez Herraiz J, Moya de Guerra E, Udias-Moinelo J, Amaro Soriano J, Lallena Rojo A, Caballero J, Johansson H, Jonson B, Nilsson T, Nyman G, Zhukov M, Golubev P, Rudolph D, Hencken K, Jourdan J, Krusche B, Rauscher T, Kiselev D, Trautmann D, Al-Khalili J, Catford W, Johnson R, Stevenson P, Barton C, Jenkins D, Lemmon R, Chartier M, Cullen D, Bertulani C, Heinz A. The electron–ion scattering experiment ELISe at the International Facility for Antiproton and Ion Research (FAIR)—A conceptual design study. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 2011. [DOI: 10.1016/j.nima.2010.12.246] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|