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Yoshikazu Suzuki

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https://www.readbyqxmd.com/read/28904318/cay10591-a-sirt1-activator-suppresses-cell-growth-invasion-and-migration-in-gingival-epithelial-carcinoma-cells
#1
Takahisa Murofushi, Hiromasa Tsuda, Yoshikazu Mikami, Yoko Yamaguchi, Naoto Suzuki
SIRT1 is a NAD-dependent histone deacetylase that is important in a wide variety of physiological and pathophysiological processes. Although many studies have examined the relationship between SIRT1 and cancer, the role of SIRT1 in tumor malignancy is controversial. Here, we examined the effects of the SIRT1 activator CAY10591 in gingival epithelial carcinoma Ca9-22 cells. CAY10591 treatment dose- and time-dependently increased SIRT1 level and activity. The treatment decreased cell growth and induced cell-cycle repressor p21 levels...
2017: Journal of Oral Science
https://www.readbyqxmd.com/read/28894052/-three-surgical-cases-of-quadricuspid-aortic-valve
#2
Yoshikazu Motohashi, Takahiro Katsumata, Tatsuya Suzuki, Ryo Shimada, Hayato Konishi, Shinji Fukuhara, Sachiko Kanki, Masahiro Daimon, Hideki Ozawa, Shintaro Nemoto
Quadricuspid aortic valve is a rare congenital disease. We experienced 3 surgical cases of quadricuspid aortic valve. Patient 1 was a 72-year-old man who was noted to have a quadricuspid aortic valve associated with aortic regurgitation and an ascending aortic aneurysm(51 mm in diameter). He underwent replacement of the aortic valve and the ascending aorta. Patient 2 was a 71-year-old man with severe aortic stenosis, regurgitation, and coronary triple vessel disease. He underwent aortic valve replacement and coronary artery bypass grafting...
September 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/28872353/quantitative-evidence-for-revising-the-definition-of-primary-graft-dysfunction-after-lung-transplant
#3
Edward Cantu, Joshua M Diamond, Yoshikazu Suzuki, Jared Lasky, Christian Schaufler, Brian Lim, Rupal Shah, Mary Porteous, David J Lederer, Steven M Kawut, Scott M Palmer, Laurie D Snyder, Matthew G Hartwig, Vibha N Lama, Sangeeta Bhorade, Christian Bermudez, Maria Crespo, John McDyer, Keith Wille, Jonathan Orens, Pali D Shah, Ann Weinacker, David Weill, David Wilkes, David Roe, Chadi Hage, Lorraine B Ware, Scarlett L Bellamy, Jason D Christie
RATIONALE: Primary graft dysfunction (PGD) is a form of acute lung injury that occurs after lung transplantation. The definition of PGD was standardized in 2005. Since that time, clinical practice has evolved and this definition is increasingly used as a primary endpoint for clinical trials; therefore, validation is warranted. OBJECTIVE: We sought to determine whether refinements to the 2005 consensus definition could further improve construct validity. METHODS: Data from the Lung Transplant Outcomes Group multi-centered cohort was used to compare variations to the PGD definition, including alternate oxygenation thresholds, inclusion of additional severity groups, and effects of procedure type and mechanical ventilation...
September 5, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28821685/nivolumab-related-myasthenia-gravis-with-myositis-and-myocarditis-in-japan
#4
Shigeaki Suzuki, Nobuhisa Ishikawa, Fumie Konoeda, Nobuhiko Seki, Satoshi Fukushima, Kikuko Takahashi, Hisashi Uhara, Yoshikazu Hasegawa, Shinichiro Inomata, Yasushi Otani, Kenji Yokota, Takashi Hirose, Ryo Tanaka, Norihiro Suzuki, Makoto Matsui
OBJECTIVE: To report the clinical features of myasthenia gravis (MG) induced by treatment with immune checkpoint inhibitors using 2-year safety databases based on postmarketing surveys in Japan. METHODS: We studied 10,277 patients with cancer who had received monotherapy with either nivolumab or ipilimumab between September 2014 and August 2016. As the control group, 105 patients with idiopathic MG were used. RESULTS: There were 12 MG cases (0...
September 12, 2017: Neurology
https://www.readbyqxmd.com/read/28795364/survival-benefit-of-additional-surgery-after-non-curative-endoscopic-submucosal-dissection-for-early-gastric-cancer-a-propensity-score-matching-analysis
#5
Sho Suzuki, Takuji Gotoda, Waku Hatta, Tsuneo Oyama, Noboru Kawata, Akiko Takahashi, Yoshikazu Yoshifuku, Shu Hoteya, Masahiro Nakagawa, Masaaki Hirano, Mitsuru Esaki, Mitsuru Matsuda, Ken Ohnita, Kohei Yamanouchi, Motoyuki Yoshida, Osamu Dohi, Jun Takada, Keiko Tanaka, Shinya Yamada, Tsuyotoshi Tsuji, Hirotaka Ito, Yoshiaki Hayashi, Tooru Shimosegawa
BACKGROUND AND PURPOSE: Previous studies comparing survival outcomes between patients who did and did not undergo additional surgery after non-curative endoscopic submucosal dissection (ESD) for early gastric cancer (EGC) were limited in that the baseline characteristics differed significantly between the groups. We aimed to address this limitation and compared survival outcomes between these two groups using propensity score matching analysis. METHODS: The study enrolled 1969 consecutive patients who underwent non-curative ESD for EGC between 2000 and 2011 at any of 19 institutions across Japan...
August 9, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28768940/inhalation-exposure-method-for-illegal-drugs
#6
Akiko Inomata, Akio Ogata, Yukie Tada, Akemichi Nagasawa, Katsuhiro Yuzawa, Hiroshi Ando, Yoshikazu Kubo, Hiroshi Takahashi, Fujifumi Kaihoko, Kazuyoshi Tanaka, Jun'ichi Nakajima, Atsuko Suzuki, Nozomi Uemura, Takako Moriyasu, Daisuke Watanabe, Kei Ishihara, Takashi Usami, Satoru Kamei, Yasuaki Kohno
 We developed a new inhalation exposure method to evaluate effects of synthetic cannabimimetics that are being distributed as new, unregulated drugs in the Tokyo area. We selected the commercial product "SOUTOU" containing AB-CHMINACA and 5F-AMB as the test drug and dried marshmallow (Althaea officinalis) leaves as the negative control. A half cigarette packed with dried marshmallow leaves or SOUTOU was ignited, then mainstream smoke from each was delivered to five mice in an exposure box. After the cigarettes were fully consumed, neurobehavioral observations and a catalepsy test were performed at 15, 30 and 60 min after exposure...
2017: Yakugaku Zasshi: Journal of the Pharmaceutical Society of Japan
https://www.readbyqxmd.com/read/28756478/protein-19-f-labeling-using-transglutaminase-for-the-nmr-study-of-intermolecular-interactions
#7
Yoshikazu Hattori, David Heidenreich, Yuki Ono, Toshihiko Sugiki, Kei-Ichi Yokoyama, Ei-Ichiro Suzuki, Toshimichi Fujiwara, Chojiro Kojima
The preparation of stable isotope-labeled proteins is important for NMR studies, however, it is often hampered in the case of eukaryotic proteins which are not readily expressed in Escherichia coli. Such proteins are often conveniently investigated following post-expression chemical isotope tagging. Enzymatic (15)N-labeling of glutamine side chains using transglutaminase (TGase) has been applied to several proteins for NMR studies. (19)F-labeling is useful for interaction studies due to its high NMR sensitivity and susceptibility...
July 29, 2017: Journal of Biomolecular NMR
https://www.readbyqxmd.com/read/28752672/risk-factors-for-stomatitis-in-patients-with-lymphangioleiomyomatosis-during-treatment-with-sirolimus-a-multicenter-investigator-initiated-prospective-study
#8
Nobutaka Kitamura, Kuniaki Seyama, Yoshikazu Inoue, Katsura Nagai, Masaru Suzuki, Hiroshi Moriyama, Toshinori Takada, Ryushi Tazawa, Toyohiro Hirai, Michiaki Mishima, Mie Hayashida, Masaki Hirose, Toru Arai, Chikatoshi Sugimoto, Noboru Hattori, Kentaro Watanabe, Tsutomu Tamada, Kohei Akazawa, Takahiro Tanaka, Koh Nakata
PURPOSE: Lymphangioleiomyomatosis is a rare lung disease caused by proliferation of abnormal smooth muscle-like cells and typically occurs in premenopausal women. Sirolimus is now the first-line drug for the treatment of lymphangioleiomyomatosis. Sirolimus-induced stomatitis is the most frequent adverse event experienced during treatment. To identify risk factors, we investigated the association of stomatitis incidence with patient background data and treatment parameters, using data from the multicenter long-term sirolimus trial...
July 28, 2017: Pharmacoepidemiology and Drug Safety
https://www.readbyqxmd.com/read/28746796/association-of-coffee-consumption-with-all-sites-cancer-incidence-and-mortality
#9
Junya Sado, Tetsuhisa Kitamura, Yuri Kitamura, Tomotaka Sobue, Yoshikazu Nishino, Hideo Tanaka, Tomio Nakayama, Ichiro Tsuji, Hidemi Ito, Takaichiro Suzuki, Kota Katanoda, Suketami Tominaga
The preventive effect of coffee on cancer at different sites has been reported, although the effect on all-sites cancer incidence has not been extensively investigated. We evaluated the association between frequency of coffee consumption and risk of all-sites cancer incidence and mortality among 39,685 men and 43,124 women (age 40 to 79 years, at baseline), in the Three Prefecture Cohort Study. The association between frequency of coffee consumption and risk of all-sites cancer incidence and mortality was assessed by a Cox proportional hazards regression model, adjusted for potential confounders...
July 26, 2017: Cancer Science
https://www.readbyqxmd.com/read/28704456/atg4-plays-an-important-role-in-efficient-expansion-of-autophagic-isolation-membranes-by-cleaving-lipidated-atg8-in-saccharomyces-cerevisiae
#10
Eri Hirata, Yoshikazu Ohya, Kuninori Suzuki
Autophagy, an intracellular degradation system, is highly conserved among eukaryotes from yeast to mammalian cells. In the yeast Saccharomyces cerevisiae, most Atg (autophagy-related) proteins, which are essential for autophagosome formation, are recruited to a restricted region close to the vacuole, termed the vacuole-isolation membrane contact site (VICS), upon induction of autophagy. Subsequently, the isolation membrane (IM) expands and sequesters cytoplasmic materials to become a closed autophagosome. In S...
2017: PloS One
https://www.readbyqxmd.com/read/28697865/revision-total-hip-arthroplasty-using-a-cementless-cup-supporter-and-iliac-autograft-a-minimum-of-15-year-follow-up
#11
Kensuke Yoshino, Tadashi Tsukeoka, Yoshikazu Tsuneizumi, Tae Hyun Lee, Junichi Nakamura, Masahiko Suzuki, Seiji Ohtori
BACKGROUND: Bone deficiency in revision total hip arthroplasty is a surgical challenge. The Murata-Chiba cup supporter (MC support ring) is an acetabular component supporter for a cementless porous-coated cup. The purpose of this study is to examine the clinical and radiographic outcomes of reconstruction of acetabular bone deficiency using iliac autografts supported by an MC support ring in a revision setting with minimum 15-year follow-up. METHODS: Fifty-nine consecutive revision total hip arthroplasties (57 patients) using the MC support ring were followed for a minimum of 15 years...
June 20, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28687875/oncologic-outcome-of-metastasectomy-for-urothelial-carcinoma-who-is-the-best-candidate
#12
Tohru Nakagawa, Satoru Taguchi, Atsushi Kanatani, Taketo Kawai, Masaomi Ikeda, Shinji Urakami, Akihiko Matsumoto, Yoshimitsu Komemushi, Jimpei Miyakawa, Daisuke Yamada, Motofumi Suzuki, Yutaka Enomoto, Hiroaki Nishimatsu, Yasushi Kondo, Yasushi Nagase, Yoshikazu Hirano, Toshikazu Okaneya, Yoshinori Tanaka, Hideyo Miyazaki, Tetsuya Fujimura, Hiroshi Fukuhara, Haruki Kume, Yasuhiko Igawa, Yukio Homma
BACKGROUND: Resection of metastatic lesions (metastasectomy) is performed for highly selected patients with metastatic urothelial carcinoma (mUC). This study aimed to identify the clinicopathologic factors associated with oncologic outcome for patients who underwent metastasectomy for mUC. METHODS: This analysis included 37 UC patients who underwent metastasectomy with curative intent at nine Japanese hospitals. The primary end point was cancer-specific survival...
September 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28676645/kif5a-transports-collagen-vesicles-of-myofibroblasts-during-pleural-fibrosis
#13
Hirotoshi Kamata, Yoshikazu Tsukasaki, Tsuyoshi Sakai, Reiko Ikebe, Julia Wang, Ann Jeffers, Jake Boren, Shuzi Owens, Takahiro Suzuki, Masaaki Higashihara, Steven Idell, Torry A Tucker, Mitsuo Ikebe
Fibrosis involves the production of extracellular matrix proteins in tissues and is often preceded by injury or trauma. In pleural fibrosis excess collagen deposition results in pleural thickening, increased stiffness and impaired lung function. Myofibroblasts are responsible for increased collagen deposition, however the molecular mechanism of transportation of procollagen containing vesicles for secretion is unknown. Here, we studied the role of kinesin on collagen-1 (Col-1) containing vesicle transportation in human pleural mesothelial cells (HPMCs)...
July 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28638143/siblings-with-optic-neuropathy-and-rtn4ip1-mutation
#14
Nobuhiko Okamoto, Fuyuki Miya, Yoshikazu Hatsukawa, Yasuhiro Suzuki, Kazumi Kawato, Yuto Yamamoto, Tatsuhiko Tsunoda, Mitsuhiro Kato, Shinji Saitoh, Mami Yamasaki, Yonehiro Kanemura, Kenjiro Kosaki
Inherited optic neuropathies (IONs) are neurodegenerative disorders affecting the optic nerve and the nervous system. Dominant and recessive IONs are known. Many of the dominant IONs are caused by mutations of OPA1. Autosomal-recessive IONs are rare. OPA10 is an autosomal-recessive ION due to mutations in RTN4IP1. Patients with RTN4IP1 mutations show extraocular manifestations. We report brothers with optic neuropathy who had novel mutations in the RTN4IP1 gene. This is the first report of Japanese patients with OPA10...
June 22, 2017: Journal of Human Genetics
https://www.readbyqxmd.com/read/28628221/influence-of-radiofrequency-electromagnetic-waves-from-3rd-generation-cellular-phones-on-fertilization-and-embryo-development-in-mice
#15
Satoshi Suzuki, Miho Okutsu, Ryota Suganuma, Hiromi Komiya, Setsu Nakatani-Enomoto, Shunsuke Kobayashi, Yoshikazu Ugawa, Hiroyuki Tateno, Keiya Fujimori
The purpose of this study was to evaluate the effects of 3rd-generation (3G) cellular phone radiofrequency-electromagnetic wave (RF-EMW) exposure on fertilization and embryogenesis in mice. Oocytes and spermatozoa were exposed to 3G cellular phone RF-EMWs, 1.95 GHz wideband code division multiple access, at a specific absorption rate of 2 mW/g for 60 min, or to sham exposure. After RF-EMW exposure, in vitro fertilization and intracytoplasmic sperm injection were performed. Rates of fertilization, embryogenesis (8-cell embryo, blastocyst), and chromosome aberration were compared between the combined spermatozoa and oocyte groups: both exposed, both non-exposed, one exposed, and the other non-exposed...
June 19, 2017: Bioelectromagnetics
https://www.readbyqxmd.com/read/28613399/immunosuppressive-efficacy-of-tetrandrine-combined-with-methylprednisolone-against-mitogen-activated-peripheral-blood-mononuclear-cells-of-haemodialysis-patients
#16
Wencheng Xu, Kehan Meng, Junichi Kusano, Hiroto Matsuda, Yoshikazu Hara, Yoshiaki Fujii, Shinya Suzuki, Eiki Ando, Xiaoqin Wang, Yuanchao Tu, Sachiko Tanaka, Kentaro Sugiyama, Haruki Yamada, Toshihiko Hirano
Immunosuppressive therapy for prevention of acute rejection episode occasionally causes serious adverse effects, and thus it is important to develop new therapeutic approach for renal transplant recipients. This study evaluated the immunosuppressive pharmacodynamics of tetrandrine (TET) and/or methylprednisolone (MP) in haemodialysis patients in vitro by using the peripheral blood mononuclear cells (PBMCs) isolated from whole blood of haemodialysis patients. The median (range) of MP IC50 values against the proliferation of patients PBMCs was 7...
September 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/28567176/combinatorial-screening-of-halide-perovskite-thin-films-and-solar-cells-by-mask-defined-ir-laser-molecular-beam-epitaxy
#17
Kazuhiro Kawashima, Yuji Okamoto, Orazmuhammet Annayev, Nobuo Toyokura, Ryota Takahashi, Mikk Lippmaa, Kenji Itaka, Yoshikazu Suzuki, Nobuyuki Matsuki, Hideomi Koinuma
As an extension of combinatorial molecular layer epitaxy via ablation of perovskite oxides by a pulsed excimer laser, we have developed a laser molecular beam epitaxy (MBE) system for parallel integration of nano-scaled thin films of organic-inorganic hybrid materials. A pulsed infrared (IR) semiconductor laser was adopted for thermal evaporation of organic halide (A-site: CH3NH3I) and inorganic halide (B-site: PbI2) powder targets to deposit repeated A/B bilayer films where the thickness of each layer was controlled on molecular layer scale by programming the evaporation IR laser pulse number, length, or power...
2017: Science and Technology of Advanced Materials
https://www.readbyqxmd.com/read/28566553/systematic-analysis-of-ca-2-homoeostasis-in-saccharomyces-cerevisiae-based-on-chemical-genetic-interaction-profiles
#18
Farzan Ghanegolmohammadi, Mitsumori Yoshida, Shinsuke Ohnuki, Yuko Sukegawa, Hiroki Okada, Keisuke Obara, Akio Kihara, Kuninori Suzuki, Tetsuya Kojima, Nozomu Yachie, Dai Hirata, Yoshikazu Ohya
We investigated the global landscape of Ca(2+) homeostasis in the budding yeast based on high-dimensional chemical-genetic interaction profiles. The morphological responses of 62 Ca(2+)-sensitive (cls) mutants were quantitatively analyzed with the image processing program CalMorph following exposure to a high concentration of Ca(2+) After a generalized linear model was applied, an analysis of covariance model was used to detect significant Ca(2+)-cls interactions. We found that high-dimensional, morphological Ca(2+)-cls interactions were mixed with positive (86%) and negative (14%) chemical-genetic interactions, while one-dimensional fitness Ca(2+)-cls interactions were all negative in principle...
May 31, 2017: Molecular Biology of the Cell
https://www.readbyqxmd.com/read/28439027/biochemical-and-structural-characterization-of-oxygen-sensitive-2-thiouridine-synthesis-catalyzed-by-an-iron-sulfur-protein-ttua
#19
Minghao Chen, Shin-Ichi Asai, Shun Narai, Shusuke Nambu, Naoki Omura, Yuriko Sakaguchi, Tsutomu Suzuki, Masao Ikeda-Saito, Kimitsuna Watanabe, Min Yao, Naoki Shigi, Yoshikazu Tanaka
Two-thiouridine (s(2)U) at position 54 of transfer RNA (tRNA) is a posttranscriptional modification that enables thermophilic bacteria to survive in high-temperature environments. s(2)U is produced by the combined action of two proteins, 2-thiouridine synthetase TtuA and 2-thiouridine synthesis sulfur carrier protein TtuB, which act as a sulfur (S) transfer enzyme and a ubiquitin-like S donor, respectively. Despite the accumulation of biochemical data in vivo, the enzymatic activity by TtuA/TtuB has rarely been observed in vitro, which has hindered examination of the molecular mechanism of S transfer...
May 9, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28410772/recovery-of-quantum-efficiency-in-spin-polarized-photocathodes-by-atomic-hydrogen-cleaning
#20
Xiuguang Jin, Masao Suzuki, Tsuneo Yasue, Takanori Koshikawa, Yoshikazu Takeda
We demonstrate a new method of cleaning superlattice (SL) photocathodes using atomic hydrogen that allows an increased number of repeat activations. GaAs/GaAsP SL photocathodes were activated with either conventional heat cleaning or atomic hydrogen cleaning. Repeated heat cleaning was found to gradually lower the quantum efficiency (QE) of the photocathodes, while a relatively constant QE was maintained over repeated atomic hydrogen cleaning. These results show that atomic hydrogen cleaning allows a greater number of photocathode cleanings without a loss of performance...
March 30, 2017: Ultramicroscopy
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