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Matsui T, Kuroda H, Sugita Y, Koyama S, Nakanishi K, Arimura T, Mizuno T, Sakakura N, Sakao Y. P1.16-42 Indocyanine Green Intersegmental Visualization During Fluorescence Imaging of Thoracoscopic Anatomic Segmentectomy: A Novel Approach. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1011] [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]
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Takeda T, Douchi K, Miyamoto A, Douke T, Ueno Y, Fujii M, Mabuchi H, Matsui T, Wada A. P4600Clinical utility of biwaco score for the patients with atrial fibrillation after percutaneous coronary intervention: biwaco study. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p4600] [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: 11/13/2022] Open
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Ohta S, Fujisawa T, Makino S, Sakamoto T, Matsui T, Tsujikawa K, Nakajima K, Saitoh K. Si-based Mach-Zehnder wavelength/mode multi/demultiplexer for a WDM/MDM transmission system. OPTICS EXPRESS 2018; 26:15211-15220. [PMID: 30114771 DOI: 10.1364/oe.26.015211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Accepted: 05/27/2018] [Indexed: 06/08/2023]
Abstract
We propose and experimentally demonstrate a low-loss and low-crosstalk Mach-Zehnder mode/wavelength multi/demultiplexer for WDM/MDM transmission based on a Si-photonics platform. A broadband 3-dB mode divider, which is also newly devised here, makes it possible to compose a Mach-Zehnder filter for "mode" and "wavelength" simultaneously. Transmission characteristics of fabricated 3-dB mode dividers are in excellent agreement with theoretical results. Mach-Zehnder filters using the 3-dB mode divider with a free spectral range (FSR) of 20 and 1 nm are also fabricated and the modal crosstalk is less than -24 dB in the 40-nm wavelength range for the MZ filter with an FSR of 20 nm. The tuning of the peak wavelength position by the TiN heater is also demonstrated.
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Eisenhauer D, Sai H, Matsui T, Köppel G, Rech B, Becker C. Honeycomb micro-textures for light trapping in multi-crystalline silicon thin-film solar cells. OPTICS EXPRESS 2018; 26:A498-A507. [PMID: 29801256 DOI: 10.1364/oe.26.00a498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 02/08/2018] [Indexed: 06/08/2023]
Abstract
The liquid phase crystallization (LPC) of silicon is an emerging technology for fabricating 10 - 20 µm thin multi-crystalline silicon layers on glass. LPC silicon solar cells exhibit similar electronic performance to multi-crystalline wafer-based devices. Due to the reduced absorber thickness, however, effective measures for light trapping have to be taken. We present tailor-made micro-structures for light trapping at the LPC silicon back-side, whereby a nano-imprinted resist layer serves as a three-dimensional etching mask in subsequent reactive ion etching. Contrary to state-of-the-art random pyramid textures produced by wet-chemical etching, this method allows to produce tailor-made textures independent of grain orientation. Differently shaped micro-textures were replicated in LPC silicon. Absorptance and external quantum efficiency of periodic honeycomb patterns and random pyramids were found to be equivalent. Thus, the method enables the potential to further optimize light trapping in LPC silicon solar cells.
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Toriniwa Y, Muramatsu M, Ishii Y, Riya E, Miyajima K, Ohshida S, Kitatani K, Takekoshi S, Matsui T, Kume S, Yamada T, Ohta T. Pathophysiological characteristics of non-alcoholic steatohepatitis-like changes in cholesterol-loaded type 2 diabetic rats. Physiol Res 2018; 67:601-612. [PMID: 29750881 DOI: 10.33549/physiolres.933784] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Spontaneously Diabetic Torii (SDT) fatty rats, a new obese diabetic model, reportedly presented with features of non-alcoholic steatohepatitis (NASH) after 32 weeks of age. We tried to accelerate the onset of NASH in SDT fatty rats using dietary cholesterol loading and noticed changes in the blood choline level which is expected to be a NASH biomarker. Body weight and biochemical parameters were measured from 8 to 24 weeks of age. At 16, 20, 24 weeks, pathophysiological analysis of the livers were performed. Hepatic lipids, lipid peroxides, and the expression of mRNA related to triglyceride (TG) synthesis, inflammation, and fibrosis were evaluated at 24 weeks. Hepatic fibrosis was observed in SDT fatty rats fed cholesterol-enriched diets (SDT fatty-Cho) from 16 weeks. Furthermore, hepatic lipids and lipid peroxide were significantly higher in SDT fatty-Cho than SDT fatty rats fed normal diets at 24 weeks. Hepatic mRNA expression related to TG secretion decreased in SDT fatty-Cho, and the mRNA expression related to inflammation and fibrosis increased in SDT fatty-Cho at 24 weeks. Furthermore, SDT fatty-Cho presented with increased plasma choline, similar to human NASH. There were no significant changes in the effects of feeding a cholesterol-enriched diet in Sprague-Dawley rats. SDT fatty-Cho has the potential to become a valuable animal model for NASH associated with type 2 diabetes and obesity.
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Aoyama T, Nishikawa K, Fujitani K, Tanabe K, Ito S, Matsui T, Miki A, Nemoto H, Sakamaki K, Fukunaga T, Kimura Y, Hirabayashi N, Yoshikawa T. Early results of a randomized two-by-two factorial phase II trial comparing neoadjuvant chemotherapy with two and four courses of cisplatin/S-1 and docetaxel/cisplatin/S-1 as neoadjuvant chemotherapy for locally advanced gastric cancer. Ann Oncol 2018; 28:1876-1881. [PMID: 28486692 DOI: 10.1093/annonc/mdx236] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Background Neoadjuvant chemotherapy (NAC) is a promising method of improving the survival of resectable gastric cancer. Cisplatin/S-1 (CS) and docetaxel/cisplatin/S-1 (DCS) are both effective against metastatic gastric cancer. This report clarified the impact of these regimens on early endpoints, including the pathological responses, chemotherapy-related toxicities, and surgical results. Methods Patients with M0 and either T4 or T3 in case of junctional cancer or scirrhous type received two or four courses of cisplatin (60 mg/m2 at day 8)/S-1 (80 mg/m2 for 21 days with 1 week rest) or docetaxel (40 mg/m2 at day 1)/cisplatin (60 mg/m2 at day 1)/S-1 (80 mg/m2 for 14 days with 2 weeks rest) as NAC. Patients then underwent D2 gastrectomy and adjuvant S-1 chemotherapy for 1 year. The primary endpoint was the 3-year overall survival. Results Between October 2011 and September 2014, 132 patients were assigned to receive CS (n = 66; 33 in 2 courses and 33 in 4 courses) or DCS (n = 66; 33 in 2 courses and 33 in 4 courses). The respective major grade 3 or 4 hematological toxicities (CS/DCS) were leukocytopenia (14.1%/26.2%), neutropenia (29.7%/47.7%), anemia (14.1%/12.3%), and platelet reduction (3.1%/1.5%). The rate of pathological response, defined as a complete response or < 10% residual cancer remaining, was 19.4% in the CS group and 15.4% in the DCS group, and 15.6% in the two-course group and 19.0% in the 4-course group. The R0 resection rate was 72.7% in the CS group and 81.8% in the DCS group and 80.3% in the two-course group and the 74.2% in the four-course group. No treatment-related deaths were observed. Conclusions Our results do not support three-drug therapy with a taxane over two-drug therapy, or any further treatment beyond two cycles as an attractive candidate for the test arm of NAC.
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Furuichi Y, Matsui T, Kawasaki H, Amagai M. 633 Intrinsic homeostatic mechanism of stratum corneum regulated by pH. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Kanou K, Arima Y, Kinoshita H, Ito H, Okuno H, Saito N, Sunagawa T, Kimura H, Matsui T, Oishi K. Respiratory Syncytial Virus Surveillance System in Japan: Assessment of Recent Trends, 2008-2015. Jpn J Infect Dis 2018; 71:250-255. [PMID: 29709974 DOI: 10.7883/yoken.jjid.2017.261] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Respiratory syncytial virus (RSV) is a major cause of lower respiratory tract illness in infants and young children. In Japan, surveillance for RSV infection started in 2003 based on approximately 3,000 pediatric sentinel sites. In recent years, RSV notifications have increased, but the interpretation of trends has been challenging due to a suspected increase in testing frequency and the expansion of the insurance coverage for RSV testing to include certain outpatients in late 2011. Therefore, we evaluated RSV surveillance data during 2008-2015, considering the number of sites that reported at least one RSV case during a surveillance year and restricting to sites that had continuous reporting status since 2008. While annual RSV notifications had increased, the number of sites reporting also increased. And the same magnitude of increase was not observed when the number of cases reported was restricted to the 1,372 sites that had continuous reporting status since 2008. Additionally, in the year following the insurance expansion, RSV notifications increased more remarkably for clinics than for hospitals. These results suggested that some of the recent increases in notifications might be due to an increase in testing frequency.
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Satake Y, Nakamura Y, Kono M, Hozumi H, Nagata T, Tsujimura K, Enomoto N, Fujisawa T, Inui N, Fujiyama T, Tokura Y, Matsui T, Yokomura K, Shirai M, Hayakawa H, Suda T. Type-1 polarised dendritic cells are a potent immunogen against Mycobacterium tuberculosis. Int J Tuberc Lung Dis 2018; 21:523-530. [PMID: 28399967 DOI: 10.5588/ijtld.16.0371] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
OBJECTIVE Application of immunotherapy using dendritic cells (DCs) is considered an effective treatment strategy against persistent Mycobacterium tuberculosis infection. With the goal of developing improved therapeutic vaccination strategies for patients with tuberculosis (TB), we tested the ability of ex vivo-generated DCs to induce an effective TB antigen-specific type-1 immune response. METHODS Monocyte-derived DCs from TB patients were induced to mature using a 'standard' cytokine cocktail (interleukin [IL] 1β, tumour necrosis factor alpha [TNF-α], IL-6 and prostaglandin E2) or a type 1-polarised DC (DC1) cocktail (IL-1β, TNF-α, interferon [IFN] α, IFN-γ and polyinosinic:polycytidylic acid), and were loaded with the established TB antigen 6-kDa early secretory antigenic target protein (ESAT-6). RESULTS Although DC1s from TB patients expressed the same levels of multiple co-stimulatory molecules (CD83, CD86, CD80 and CD40) as the standard DCs (sDCs), DC1s secreted substantially higher levels of IL-12p70. Furthermore, when DCs pulsed with or without ESAT-6 were cultured with lymphocytes from the same patients, DC1s induced much higher numbers of ESAT-6-specific IFN-γ-producing T-cells than sDCs, as manifested by their superior induction of natural killer cell activation and antigen-independent suppression of regulatory T-cells. CONCLUSION TB antigen-loaded DC1s are potent inducers of antigen-specific T-cells, which could be used to develop improved immunotherapies of TB.
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Hibino A, Saito R, Taniguchi K, Zaraket H, Shobugawa Y, Matsui T, Suzuki H. Molecular epidemiology of human respiratory syncytial virus among children in Japan during three seasons and hospitalization risk of genotype ON1. PLoS One 2018; 13:e0192085. [PMID: 29377949 PMCID: PMC5788364 DOI: 10.1371/journal.pone.0192085] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 01/16/2018] [Indexed: 12/25/2022] Open
Abstract
We investigated the genetic diversity, the circulation patterns, and risk for hospital admission of human respiratory syncytial virus (HRSV) strains in Japan between 2012 through 2015. During the study period, 744 HRSV-positive cases were identified by rapid diagnostic test. Of these, 572 samples were positive by real-time PCR; 400 (69.9%) were HRSV-A, and 172 (30.1%) were HRSV-B. HRSV-A and -B alternated as the dominant strain in the subsequent seasons. Phylogenetic tree analysis of the second hyper-variable region of the G protein classified the HRSV-A specimens into NA1 (n = 242) and ON1 (n = 114) genotypes and the HRSV-B specimens into BA9 (n = 60), and BA10 (n = 27). The ON1 genotype, containing a 72-nucleotide duplication in the G protein’s second hyper-variable region, was first detected in the 2012–2013 season but it predominated and replaced the older NA1 HRSV-A in the 2014–2015 season, which also coincided with a record number of HRSV cases reported to the National Infectious Disease Surveillance in Japan. The risk of hospitalization was 6.9 times higher for the ON1 genotype compared to NA1. In conclusion, our data showed that the emergence and predominance of the relatively new ON1 genotype in Japan was associated with a record high number of cases and increased risk for hospitalization.
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Nakase H, Motoya S, Matsumoto T, Watanabe K, Hisamatsu T, Yoshimura N, Ishida T, Kato S, Nakagawa T, Esaki M, Nagahori M, Matsui T, Naito Y, Kanai T, Suzuki Y, Nojima M, Watanabe M, Hibi T. Significance of measurement of serum trough level and anti-drug antibody of adalimumab as personalised pharmacokinetics in patients with Crohn's disease: a subanalysis of the DIAMOND trial. Aliment Pharmacol Ther 2017; 46:873-882. [PMID: 28884856 PMCID: PMC5656923 DOI: 10.1111/apt.14318] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 07/18/2017] [Accepted: 08/18/2017] [Indexed: 12/17/2022]
Abstract
BACKGROUND Significance of monitoring adalimumab trough levels and anti-adalimumab antibodies (AAA) for disease outcome in Crohn's disease (CD) patients remained unclear. AIM To evaluate the association of adalimumab trough levels and AAA at week 26 with clinical remission at week 52, the effect of azathiopurine on AAA and factors influencing trough levels in CD patients in the DIAMOND trial. METHODS We performed this study using adalimumab trough levels, AAA at week 26 and 6-thioguanine nucleotide (TGN) in red blood cells at week 12. A multiple regression model and receiver operating analysis was performed to identify factors influencing adalimumab trough levels and AAA, and adalimumab thresholds for predicting disease activity. RESULTS There was a significant difference of adalimumab trough level at week 26 between patients with disease remission and without at week 52 (7.7 ± 3.3 μg/mL vs 5.4 ± 4.3 μg/mL: P <.001). Adalimumab trough level of 5.0 μg/mL yielded optimal sensitivity and specificity for remission prediction (80.2% and 55.6%, respectively). AAA development at week 26 significantly affected remission at week 52 (P = .021), which was strongly associated with adalimumab trough levels. Female gender and increasing body weight were independently associated with low adalimumab trough levels, and female gender was associated with AAA development. A cut-off 6TGN level of >222.5 p mol/8 ×108 RBCs yielded sensitivity (100%) and specificity (60.6%) for AAA negativity. CONCLUSION Adalimumab trough levels and AAA occurrence were significantly associated with clinical remission. Higher 6TGN affected AAA negativity. The combination therapy is beneficial in some relevant aspects for CD patients. (UMIN Registration No. 000005146).
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Kanayama A, Arima Y, Matsui T, Kaku K, Kinoshita H, Oishi K. Epidemiology of Imported Malaria Cases in Japan, 2006-2014: A Sentinel Traveler Surveillance Approach. Am J Trop Med Hyg 2017; 97:1532-1539. [PMID: 29140229 PMCID: PMC5817757 DOI: 10.4269/ajtmh.17-0171] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Accepted: 06/15/2017] [Indexed: 11/07/2022] Open
Abstract
Malaria continues to be imported into Japan. To better assess the risk of imported malaria, we describe malaria species, suspected country/area of infection (accounting for the number of travelers), demographic characteristics, clinical manifestation, and healthcare access, based on the national surveillance data from 2006 to 2014. Among 557 cases, the median age was 33 years (range: 1-83 years), and 76% were male; 306 (55%) were classified as Japanese based on the reported name. The majority were Plasmodium falciparum infections (58%), followed by Plasmodium vivax infections (30%). Most P. falciparum cases were acquired in Africa and P. vivax in Asia/Oceania. Notification rates per 10,000 Japanese travelers for P. falciparum were highest for Africa, P. vivax were highest for Asia/Oceania, and high for both species for Papua New Guinea. Ten percent of the cases were clinically severe at the time of notification. Nearly 80% of severe cases were P. falciparum infections, and among P. falciparum cases, Japanese ethnicity was associated with severe case status (P = 0.03). Plasmodium falciparum cases among Japanese cases showed that older age (≥ 50 years) was associated with severe case status (odds ratio = 5.4; 95% confidence interval = 1.9-15.2), adjusted for sex and healthcare access. More informative assessments are possible by accounting for the number of travelers. Older Japanese represent an important demographic to target prevention and early treatment efforts for malaria.
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Matsui T, Tanaka K, Kobayashi Y. Heterogeneous expression of glycoconjugates in the primary olfactory centre of the Japanese sword-tailed newt (Cynops ensicauda). Anat Histol Embryol 2017; 47:28-37. [PMID: 29052233 DOI: 10.1111/ahe.12320] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 10/04/2017] [Indexed: 10/18/2022]
Abstract
Histochemical organization of the Caudata olfactory system remains largely unknown, despite this amphibian order showing phylogenetic diversity in the development of the vomeronasal organ and its primary centre, the accessory olfactory bulb. Here, we investigated the glycoconjugate distribution in the olfactory bulb of a semi-aquatic salamander, the Japanese sword-tailed newt (Cynops ensicauda), by histochemical analysis of the lectins that were present. Eleven lectins showed a specific binding to the olfactory and vomeronasal nerves as well as to the olfactory glomeruli. Among them, succinylated wheat germ agglutinin (s-WGA), soya bean agglutinin (SBA), Bandeiraea simplicifolia lectin-I (BSL-I) and peanut agglutinin showed significantly different bindings to glomeruli between the main and accessory olfactory bulbs. We also found that s-WGA, SBA, BSL-I and Pisum sativum agglutinin preferentially bound to a rostral cluster of glomeruli in the main olfactory bulb. This finding suggests the presence of a functional subset of primary projections to the main olfactory system. Our results therefore demonstrated a region-specific glycoconjugate expression in the olfactory bulb of C. ensicauda, which would be related to a functional segregation of the olfactory system.
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Ohashi M, Shimizu T, Ito H, Matsui T, Sakakibara K, Echizen Y, Takatani M, Harada Y, Yokoi D, Kobayashi R, Okada H, Okuda S. Clinical features of progressive multifocal leukoencephalopathy with human immunodeficiency virus infection. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2840] [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]
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Kobayashi D, Enomoto A, Mochizuki Y, Matsui T, Nakayama H, Kawase Y, Ishigure K, Shikano T, Torii K, Kodera Y. Correlation between SPARC expression and efficacy of nab-paclitaxel for advanced gastric cancer refractory to fluoropyrimidine: An exploratory analysis of a phase II trial, CCOG1303. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx369.080] [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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Lau WKM, Kim KM, Shi JJ, Matsui T, Chin M, Tan Q, Peters-Lidard C, Tao WK. Impacts of aerosol-monsoon interaction on rainfall and circulation over Northern India and the Himalaya Foothills. CLIMATE DYNAMICS 2017; 49:1945-1960. [PMID: 32801479 PMCID: PMC7427820 DOI: 10.1007/s00382-016-3430-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
The boreal summer of 2008 was unusual for the Indian monsoon, featuring exceptional heavy loading of dust aerosols over the Arabian Sea and northern-central India, near normal all-India rainfall, but excessive heavy rain, causing disastrous flooding in the Northern Indian Himalaya Foothills (NIHF) regions, accompanied by persistent drought conditions in central and southern India. Using NASA Unified-physics Weather Research Forecast (NUWRF) model with fully interactive aerosol physics and dynamics, we carried out three sets of 7-day ensemble model forecast experiments: 1) control with no aerosol, 2) aerosol radiative effect only and 3) aerosol radiative and aerosol-cloud-microphysics effects, to study the impacts of aerosol-monsoon interactions on monsoon variability over the NIHF during the summer of 2008. Results show that aerosol-radiation interaction (ARI), i.e., dust aerosol transport, and dynamical feedback processes induced by aerosol-radiative heating, plays a key role in altering the large-scale monsoon circulation system, reflected by an increased north-south tropospheric temperature gradient, a northward shift of heavy monsoon rainfall, advancing the monsoon onset by 1-5 days over the HF, consistent with the EHP hypothesis (Lau et al. 2006). Additionally, we found that dust aerosols, via the semi-direct effect, increase atmospheric stability, and cause the dissipation of a developing monsoon onset cyclone over northeastern India/northern Bay of Bengal. Eventually, in a matter of several days, ARI transforms the developing monsoon cyclone into meso-scale convective cells along the HF slopes. Aerosol-Cloud-microphysics Interaction (ACI) further enhances the ARI effect in invigorating the deep convection cells and speeding up the transformation processes. Results indicate that even in short-term (up to weekly) numerical forecasting of monsoon circulation and rainfall, effects of aerosol-monsoon interaction can be substantial and cannot be ignored.
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Hamamichi Y, Iwasawa S, Syouya K, Katou A, Matsui T, Kuwata S, Horimoto Y, Saito M, Ishii T, Inage A, Ueda T, Yazaki S, Yoshikawa T. P718Increased central venous pressure is provoked not by pulmonary-circulation defects but by mild cardiac-strains in patients after Fontan procedure. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx501.p718] [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: 11/13/2022] Open
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Hamamichi Y, Matsui T, Kuwata S, Horimoto Y, Kobayashi T, Saitou M, Ishii T, Inage A, Ueda T, Yazaki S, Yoshikawa T. P737Fontan patients with fenestration acquire low central-venous pressure but hold poor cardiac performances. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx501.p737] [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: 11/13/2022] Open
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Hamamichi Y, Matsui T, Katou A, Syouya K, Kuwata S, Horimot Y, Saito M, Ishii T, Inage A, Ueda T, Yazaki S, Yoshkawa T. P574Diastolic dysfunction in Fontan patients is provoked by pulmonary high flow before procedure and minor afterload-increment. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx501.p574] [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: 11/14/2022] Open
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Weiss TM, Matsui T, Rajkovic I, Liu P. Recent developments and upgrades at the beamline for biological small-angle X-ray scattering BL4-2 at SSRL. Acta Crystallogr A Found Adv 2017. [DOI: 10.1107/s0108767317096428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Hasegawa H, Nakashima H, Matsui T, Ohta M. Helical Geometry Effect on Tritium Breeding in Heliotron Fusion Reactor Blanket. NUCL SCI ENG 2017. [DOI: 10.13182/nse84-a18642] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Yamashita H, Matsuhara H, Miotani S, Sako Y, Matsui T, Tanaka H, Inagaki N. Artificial sweeteners and mixture of food additives cause to break oral tolerance and induce food allergy in murine oral tolerance model for food allergy. Clin Exp Allergy 2017; 47:1204-1213. [DOI: 10.1111/cea.12928] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Revised: 03/13/2017] [Accepted: 03/16/2017] [Indexed: 12/15/2022]
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Furuichi Y, Matsui T, Amagai M. 450 Real time 3D in vivo pH imaging reveals tightly-regulated pH layers with distinct properties in mouse stratum corneum. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Matsui T, Hori A, Hamako J, Matsushita F, Ozeki Y, Sakurai Y, Hayakawa M, Matsumoto M, Fujimura Y. Mutant botrocetin-2 inhibits von Willebrand factor-induced platelet agglutination. J Thromb Haemost 2017; 15:538-548. [PMID: 28071872 DOI: 10.1111/jth.13617] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Indexed: 11/29/2022]
Abstract
Essentials Botrocetin-2 (Bot2) binds to von Willebrand factor (VWF) and induces platelet agglutination. We identified Bot2 residues that are required for binding to VWF and glycoprotein (GP) Ib. We produced a mutant Bot2 that binds to VWF but inhibits platelet agglutination. Mutant Bot2 could be used as a potential anti-thrombotic reagent to block VWF-GPIb interaction. SUMMARY Background Botrocetin-2 (Bot2) is a botrocetin-like protein composed of α and β subunits that have been cloned from the snake Bothrops jararaca. Bot2 binds specifically to von Willebrand factor (VWF), and the complex induces glycoprotein (GP) Ib-dependent platelet agglutination. Objectives To exploit Bot2's VWF-binding capacity in order to attempt to create a mutant Bot2 that binds to VWF but inhibits platelet agglutination. Methods and Results Several point mutations were introduced into Bot2 cDNA, and the recombinant protein (recombinant Bot2 [rBot2]) was purified on an anti-botrocetin column. The mutant rBot2 with either Ala at Asp70 in the β subunit (Aspβ70Ala), or Argβ115Ala and Lysβ117Ala, showed reduced platelet agglutination-inducing activity. rBot2 with Aspβ70Ala showed little binding activity towards immobilized VWF on an ELISA plate, whereas rBot2 with Argβ115Ala/Lysβ117Ala showed reduced binding activity towards GPIb (glycocalicin) after forming a complex with VWF. rBot2 point-mutated to oppositely charged Glu at both Argβ115 and Lysβ117 showed normal binding activity towards VWF but no platelet-agglutinating activity. Furthermore, this doubly mutated protein inhibited ristocetin-induced or high shear stress-induced platelet aggregation, and restrained thrombus formation under flow conditions. Conclusions Asp70 in the β subunit of botrocetin is important for VWF binding, and Arg115 and Lys117 in the β subunit are essential for interaction with GPIb. Doubly mutated rBot2, with Argβ115Glu and Lysβ117Glu, repels GPIb and might have potential as an antithrombotic reagent that specifically blocks VWF function. This is the first report on an artificial botrocetin that can inhibit the VWF-GPIb interaction.
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Ushizawa H, Yahata Y, Endo T, Iwashima T, Misawa M, Sonobe M, Yamagishi T, Kamiya H, Nakashima K, Matsui T, Matsui M, Suzuki S, Shibayama K, Doi M, Irie F, Yamato S, Otomo Y, Oishi K. A Epidemiological Investigation of a Nosocomial Outbreak of Multidrug-Resistant Acinetobacter baumannii in a Critical Care Center in Japan, 2011-2012. Jpn J Infect Dis 2017; 69:356. [PMID: 27452226 DOI: 10.7883/yoken.jjid.2016.e002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Volume 69, no. 2, p. 143-148, 2016. Page 143, Title should appear as shown below.An Epidemiological Investigation of a Nosocomial Outbreak of Multidrug-Resistant Acinetobacter baumannii in a Critical Care Center in Japan, 2011-2012.
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