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https://www.readbyqxmd.com/read/28642362/regulation-of-rhoa-by-stat3-coordinates-glial-scar-formation
#1
Francois Renault-Mihara, Masahiko Mukaino, Munehisa Shinozaki, Hiromi Kumamaru, Satoshi Kawase, Matthieu Baudoux, Toshiki Ishibashi, Soya Kawabata, Yuichiro Nishiyama, Keiko Sugai, Kaori Yasutake, Seiji Okada, Masaya Nakamura, Hideyuki Okano
Understanding how the transcription factor signal transducer and activator of transcription-3 (STAT3) controls glial scar formation may have important clinical implications. We show that astrocytic STAT3 is associated with greater amounts of secreted MMP2, a crucial protease in scar formation. Moreover, we report that STAT3 inhibits the small GTPase RhoA and thereby controls actomyosin tonus, adhesion turnover, and migration of reactive astrocytes, as well as corralling of leukocytes in vitro. The inhibition of RhoA by STAT3 involves ezrin, the phosphorylation of which is reduced in STAT3-CKO astrocytes...
June 22, 2017: Journal of Cell Biology
https://www.readbyqxmd.com/read/28634729/analysis-of-gender-based-differences-among-surgeons-in-japan-results-of-a-survey-conducted-by-the-japan-surgical-society-part-1-working-style
#2
Kazumi Kawase, Kyoko Nomura, Ryuji Tominaga, Hirotaka Iwase, Tomoko Ogawa, Ikuko Shibasaki, Mitsuo Shimada, Tomoaki Taguchi, Emiko Takeshita, Yasuko Tomizawa, Sachiyo Nomura, Kazuhiro Hanazaki, Tomoko Hanashi, Hiroko Yamashita, Norihiro Kokudo, Kotaro Maeda
PURPOSE: To assess the working styles of men and women working as surgeons in Japan. METHODS: In July, 2014, the Japan Surgical Society invited all their members (n = 29,861), through an internet campaign, to participate in a nationwide survey of surgeons. The items investigated in this descriptive study included demographic information and working styles, based on a questionnaire. RESULTS: In total, 6211 surgeons participated (response rate 20...
June 20, 2017: Surgery Today
https://www.readbyqxmd.com/read/28623251/highly-functional-t-cell-receptor-repertoires-are-abundant-in-stem-memory-t-cells-and-highly-shared-among-individuals
#3
Takahiko Miyama, Takakazu Kawase, Kazutaka Kitaura, Ren Chishaki, Masashi Shibata, Kumi Oshima, Hiroshi Hamana, Hiroyuki Kishi, Atsushi Muraguchi, Kiyotaka Kuzushima, Hiroh Saji, Tadasu Shin-I, Ryuji Suzuki, Tatsuo Ichinohe
To expand our knowledge of the ontogeny of the T-cell receptor (TCR) repertoire of antigen-specific T-cell subsets, we combined next-generation deep sequencing and single-cell multiplex clonotype analysis to evaluate the diversity and frequency of paired TCRs, their functions and whether clonotypic TCRs are shared among different individuals. Using an HLA-A*02-restricted cytomegalovirus (CMV) pp65-derived immunogenic peptide, we found that the more dominant pp65-specific TCR clonotypes in the blood of healthy donors have higher binding affinities for the CMV peptide and arise from clonotypes that are highly shared among individuals...
June 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28616560/successful-revascularization-improves-long-term-clinical-outcome-in-patients-with-chronic-coronary-total-occlusion
#4
Tomohiko Teramoto, Etsuo Tsuchikane, Masanori Yamamoto, Hitoshi Matsuo, Yoshiaki Kawase, Yoriyasu Suzuki, Seiji Kanou, Tetsurou Shimura, Hirotomo Sato, Maoto Habara, Kenya Nasu, Masashi Kimura, Yoshihisa Kinoshita, Mitsuyasu Terashima, Tetsuo Matsubara, Takahiko Suzuki
BACKGROUND: Following the development of breakthrough techniques for percutaneous coronary intervention (PCI) in the treatment of chronic total occlusions (CTO), the initial success rate of PCI in CTO lesions (CTO-PCI) has improved; however, there are few reports regarding the effects of successful CTO revascularization on long-term mortality in Japan. The aim of this study was to compare the long-term clinical outcomes of patients with successful versus failed CTO recanalization and to identify related factors...
March 2017: IJC Heart & Vasculature
https://www.readbyqxmd.com/read/28603843/characterization-of-vsig1-exerting-a-tumor-suppressor-function-in-gastric-lung-and-esophageal-cancer-cells
#5
Yusuke Inoue, Shun Matsuura, Katsuhiro Yoshimura, Yuji Iwashita, Tomoaki Kahyo, Akikazu Kawase, Masayuki Tanahashi, Matsuyoshi Maeda, Hiroshi Ogawa, Naoki Inui, Kazuhito Funai, Kazuya Shinmura, Hiroshi Niwa, Takafumi Suda, Haruhiko Sugimura
V-set and immunoglobulin domain containing 1 (VSIG1) is a newly discovered member of the immunoglobulin superfamily proteins, expressed in normal stomach and testis. In cancers, however, the clinical and biological roles of VSIG1 remain unknown. Here we investigated VSIG1 expression in 11 cancers and assessed the prognostic roles of VSIG1 in patients with gastric cancer (GC) (N = 362) and non-small-cell lung cancer (N = 650). VSIG1 was downregulated in 60.5% of GC specimens, and high VSIG1 expression was identified as an independent favorable prognostic factor for overall survival in GC patients (hazard ratio, 0...
June 12, 2017: Cancer Science
https://www.readbyqxmd.com/read/28592833/demonstration-of-electron-beam-laser-excitation-in-the-uv-range-using-a-gan-algan-multiquantum-well-active-layer
#6
Takafumi Hayashi, Yuta Kawase, Noriaki Nagata, Takashi Senga, Sho Iwayama, Motoaki Iwaya, Tetsuya Takeuchi, Satoshi Kamiyama, Isamu Akasaki, Takahiro Matsumoto
This study investigated electron beam laser excitation in the UV region using a GaN/AlGaN multiquantum well (MQW) active layer. Laser emission was observed when the GaN/AlGaN MQW was excited by an electron beam, with a wavelength of approximately 353 nm and a threshold power density of 230 kW/cm(2). A comparison of optical pumping and electron beam pumping demonstrated that the rate of generation of electron-hole pairs when using electron beam excitation was approximately one quarter that of light excitation...
June 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28570939/removal-of-antibiotic-sulfamethoxazole-by-zero-valent-iron-under-oxic-and-anoxic-conditions-removal-mechanisms-in-acidic-neutral-and-alkaline-solutions
#7
Maki Kobayashi, Shunji Kurosu, Rina Yamaguchi, Yoshinori Kawase
Removal of antibiotic sulfamethoxazole (SMX) by zero-valent iron (ZVI) was examined in the range of pH from 3.0 to 11.0 under oxic and anoxic conditions to clarify mechanisms of SMX removal in acidic, neutral and alkaline solutions. SMX removal was affected by solution pH and related to the speciation of SMX. Under the oxic condition, the maximums of SMX removal efficiency and rate were obtained at pH 3.0. The SMX removal efficiency decreased from 100 to 32% with increasing pH in the acidic solutions (3 ≦ pH ≦ 5) and increased to 88% in neutral and moderately alkaline solutions (6 ≦ pH ≦ 10)...
May 29, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28557372/laparoscopic-sigmoidectomy-combined-with-uterus-excision-for-colouterine-fistula-caused-by-sigmoid-colon-diverticulitis-a-case-report
#8
Satoshi Arakawa, Zenichi Morise, Masashi Isetani, Hirokazu Tomishige, Norihiko Kawabe, Hidetoshi Nagata, Yukio Asano, Jin Kawase, Kenshiro Kamio, Yoshihiro Imaeda, Shunji Umemoto, Masahiro Ikeda, Akihiko Horiguchi
A case of colouterine fistula caused by colonic diverticulitis that was successfully treated laparoscopically is presented. A 74-year-old woman visited us with lower abdominal discomfort and vaginal excretion with minor fecal contamination. Mild tenderness was observed in her lower abdomen. Blood examinations revealed elevated white blood cell count and C-reactive protein. Sigmoid colon diverticulitis was revealed on CT, and her condition was diagnosed as colouterine fistula. Hinchey classification was stage I...
May 29, 2017: Asian Journal of Endoscopic Surgery
https://www.readbyqxmd.com/read/28553770/involvement-of-reactive-metabolites-of-diclofenac-in-cytotoxicity-in-sandwich-cultured-rat-hepatocytes
#9
Atsushi Kawase, Ryota Hashimoto, Mai Shibata, Hiroaki Shimada, Masahiro Iwaki
BACKGROUND AND OBJECTIVES: Diclofenac (DIC) is metabolized to reactive metabolites such as diclofenac acyl-β-d-glucuronide (DIC-AG). It is possible that such reactive metabolites could cause tissue damage by formation of covalent protein adducts and other modification of cellular proteins or by induction of immune responses against its covalent protein adducts. However, the detailed mechanisms of idiosyncratic drug-induced liver injury (DILI) have been unclear. The objective is to clarify the involvement of DIC-AG and 4'hydroxydiclofenac (4'OH-DIC) in acute DILI...
May 2017: International Journal of Toxicology
https://www.readbyqxmd.com/read/28532527/how-i-do-it-underwater-endoscopic-ear-surgery-for-plugging-in-superior-canal-dehiscence-syndrome
#10
D Yamauchi, Y Hara, H Hidaka, T Kawase, Y Katori
BACKGROUND: Underwater endoscopic ear surgery does not require suction and so protects the inner ear from unexpected aeration that may damage its function in the treatment of labyrinthine fistula. A method of underwater endoscopic ear surgery is proposed for the treatment of superior canal dehiscence. METHODS: Underwater endoscopic ear surgery was performed for plugging of the superior semicircular canal through the transmastoid approach. Saline solution was infused into the mastoid cavity through an Endo-Scrub Lens Cleaning Sheath...
May 23, 2017: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/28500139/high-versus-low-gradient-severe-aortic-stenosis-demographics-clinical-outcomes-and-effects-of-the-initial-aortic-valve-replacement-strategy-on-long-term-prognosis
#11
Tomohiko Taniguchi, Takeshi Morimoto, Hiroki Shiomi, Kenji Ando, Norio Kanamori, Koichiro Murata, Takeshi Kitai, Yuichi Kawase, Chisato Izumi, Makoto Miyake, Hirokazu Mitsuoka, Masashi Kato, Yutaka Hirano, Shintaro Matsuda, Tsukasa Inada, Kazuya Nagao, Tomoyuki Murakami, Yasuyo Takeuchi, Keiichiro Yamane, Mamoru Toyofuku, Mitsuru Ishii, Eri Minamino-Muta, Takao Kato, Moriaki Inoko, Tomoyuki Ikeda, Akihiro Komasa, Katsuhisa Ishii, Kozo Hotta, Nobuya Higashitani, Yoshihiro Kato, Yasutaka Inuzuka, Chiyo Maeda, Toshikazu Jinnai, Yuko Morikami, Naritatsu Saito, Kenji Minatoya, Takeshi Kimura
BACKGROUND: There is considerable debate on the management of patients with low-gradient severe aortic stenosis (LG-AS), defined as aortic valve area <1 cm(2) with peak aortic jet velocity ≤4.0 m/s, and mean aortic pressure gradient ≤40 mm Hg. METHODS AND RESULTS: In the CURRENT AS registry (Contemporary Outcomes After Surgery and Medical Treatment in Patients With Severe Aortic Stenosis), there were 2097 patients (initial aortic valve replacement [AVR] strategy: n=977, and conservative strategy: n=1120) with high-gradient severe aortic stenosis (HG-AS) and 1712 patients (initial AVR strategy: n=219, and conservative strategy: n=1493) with LG-AS...
May 2017: Circulation. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28466249/mechanical-and-degradation-properties-of-advanced-platelet-rich-fibrin-a-prf-concentrated-growth-factors-cgf-and-platelet-poor-plasma-derived-fibrin-pptf
#12
Kazushige Isobe, Taisuke Watanebe, Hideo Kawabata, Yutaka Kitamura, Toshimitsu Okudera, Hajime Okudera, Kohya Uematsu, Kazuhiro Okuda, Koh Nakata, Takaaki Tanaka, Tomoyuki Kawase
BACKGROUND: Fibrin clot membranes prepared from advanced platelet-rich fibrin (A-PRF) or concentrated growth factors (CGF), despite their relatively rapid biodegradability, have been used as bioactive barrier membranes for alveolar bone tissue regeneration. As the membranes degrade, it is thought that the growth factors are gradually released. However, the mechanical and degradable properties of these membranes have not well been characterized. The purpose of this study was to mechanically and chemically characterize these membranes...
December 2017: International Journal of Implant Dentistry
https://www.readbyqxmd.com/read/28446373/duplicated-internal-auditory-canal-with-inner-ear-malformation-case-report-and-literature-review
#13
Yoshitaka Takanashi, Tetsuaki Kawase, Yasuko Tatewaki, Jun Suzuki, Izumi Yahata, Yuuri Nomura, Kazuha Oda, Hiromitsu Miyazaki, Yukio Katori
Internal auditory canal anomalies are rare. Narrow internal auditory canal is believed to occur as a result of aplasia or hypoplasia of the vestibulocochlear nerve. Narrow duplication of the internal auditory canal is considered to be very rare. Narrow duplication of the internal auditory canal with inner ear malformation has been reported in only 3 cases. We present 2 cases of narrow duplication of the internal auditory canal with inner ear malformation. The first case had inner ear malformation on only one side and the second case had inner ear malformation on both sides...
April 23, 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/28437783/evacuation-of-a-tertiary-neonatal-centre-lessons-from-the-2016-kumamoto-earthquakes
#14
Osuke Iwata, Akihiko Kawase, Masanori Iwai, Kazuko Wada
BACKGROUND: Newborn infants hospitalised in the neonatal intensive care unit (NICU) are vulnerable to natural disasters. However, publications on evacuation from NICUs are sparse. The 2016 Kumamoto Earthquakes caused serious damage to Kumamoto City Hospital and its level III regional core NICU. Local/neighbour NICU teams and the disaster-communication team of a neonatal academic society cooperated to evacuate 38 newborn infants from the ward. OBJECTIVE: The aim of this paper was to highlight potential key factors to improve emergency NICU evacuation and coordination of hospital transportation following natural disasters...
2017: Neonatology
https://www.readbyqxmd.com/read/28437362/sonotubometric-assessment-for-severity-of-patulous-eustachian-tube
#15
Iori Takata, Ryoukichi Ikeda, Tetsuaki Kawase, Yoko Suzuki, Takeshi Sato, Yukio Katori, Toshimitsu Kobayashi
OBJECTIVE: To investigate the relationship between the morphological patency of the eustachian tube (ET) and sound transmission via the ET. STUDY DESIGN: Retrospective chart review and model experiment. SETTING: Tertiary referral center. SUBJECTS: A total of 56 ears of 28 patients (9 men and 19 women, aged from 12 to 82 yr, mean 40.4 ± 21.5 yr) who underwent sonotubometric measurement using postural change as well as computed tomography (CT) of the ET in the sitting position, including 26 ears with definite patulous ET, 9 ears with possible patulous ET, and 21 ears without patulous ET...
July 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28393748/gut-microbiota-of-mice-putatively-modifies-amino-acid-metabolism-in-the-host-brain
#16
Takahiro Kawase, Mao Nagasawa, Hiromi Ikeda, Shinobu Yasuo, Yasuhiro Koga, Mitsuhiro Furuse
Recently, it has been found that the gut microbiota influences functions of the host brain by affecting monoamine metabolism. The present study focused on the relationship between the gut microbiota and the brain amino acids. Specific pathogen-free (SPF) and germ-free (GF) mice were used as experimental models. Plasma and brain regions were sampled from mice at 7 and 16 weeks of age, and analysed for free d- and l-amino acids, which are believed to affect many physiological functions. At 7 weeks of age, plasma concentrations of d-aspartic acid (d-Asp), l-alanine (l-Ala), l-glutamine (l-Gln) and taurine were higher in SPF mice than in GF mice, but no differences were found at 16 weeks of age...
April 10, 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28392546/sex-differences-in-severe-aortic-stenosis%C3%A3-clinical-presentation-and-mortality
#17
Mamoru Toyofuku, Tomohiko Taniguchi, Takeshi Morimoto, Kyohei Yamaji, Yutaka Furukawa, Kosuke Takahashi, Takashi Tamura, Hiroki Shiomi, Kenji Ando, Norio Kanamori, Koichiro Murata, Takeshi Kitai, Yuichi Kawase, Chisato Izumi, Makoto Miyake, Hirokazu Mitsuoka, Masashi Kato, Yutaka Hirano, Shintaro Matsuda, Tsukasa Inada, Tomoyuki Murakami, Yasuyo Takeuchi, Keiichiro Yamane, Mitsuru Ishii, Eri Minamino-Muta, Takao Kato, Moriaki Inoko, Tomoyuki Ikeda, Akihiro Komasa, Katsuhisa Ishii, Kozo Hotta, Nobuya Higashitani, Yoshihiro Kato, Yasutaka Inuzuka, Chiyo Maeda, Toshikazu Jinnai, Yuko Morikami, Naritatsu Saito, Kenji Minatoya, Takeshi Kimura
BACKGROUND: There is a paucity of data on the sex differences in the prevalence, clinical presentation, and prognosis of aortic stenosis (AS).Methods and Results:A total of 3,815 consecutive patients with severe AS were enrolled in the multicenter CURRENT AS registry between January 2003 and December 2011. The registry included 1,443 men (38%) and 2,372 women (62%). Women were much older than men (79±10 vs. 75±10 years, P<0.0001), and the ratio of women to men increased with age...
April 8, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28381739/a-comparison-between-the-instantaneous-wave-free-ratio-and-resting-distal-coronary-artery-pressure-aortic-pressure-and-the-fractional-flow-reserve-the-diagnostic-accuracy-can-be-improved-by-the-use-of-both-indices
#18
COMPARATIVE STUDY
Nobuo Shiode, Tomokazu Okimoto, Hiromichi Tamekiyo, Tomoharu Kawase, Kenichi Yamane, Yuzo Kagawa, Yuto Fujii, Yusuke Ueda, Naoya Hironobe, Yasuko Kato, Yasuhiko Hayashi
Objectives The fractional flow reserve (FFR) is an index of the severity of coronary stenosis that has been clinically validated in several studies. The instantaneous wave-free ratio (iFR) and the resting distal coronary artery pressure/aortic pressure (Pd/Pa) are nonhyperemic pressure-derived indices of the severity of stenosis. This study sought to examine the diagnostic accuracy of the iFR and resting Pd/Pa with respect to hyperemic FFR. Methods Following an intracoronary injection of papaverine, the iFR, resting Pd/Pa, and FFR were continuously measured in 123 lesions in 103 patients with stable coronary disease...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28381677/a-novel-methodology-for-synthesis-of-1-5-6-trisubstituted-2-1h-pyrazinones-of-biological-interest
#19
Ryosuke Saijo, Hiroshi Sekiya, Eiji Tamai, Ken-Ichi Kurihara, Jun Maki, Hiroshi Sakagami, Masami Kawase
In this report, we describe a new method for the synthesis of densely functionalized 2(1H)-pyrazinones. Treatment of mesoionic 1,3-oxazolium-5-olates with carbanions derived from activated methylene isocyanides (p-toluenesulfonylmethyl isocyanide (TosMIC) and ethyl isocyanoacetate) causes a novel ring transformation affording 2(1H)-pyrazinones in moderate to high yields. The cytotoxicity and antibacterial activity of some of the obtained products were studied and some of the products exhibited tumor-specific cytotoxicity...
2017: Chemical & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28378892/distinct-prognostic-roles-and-heterogeneity-of-ttf1-copy-number-and-ttf1-protein-expression-in-non-small-cell-lung-cancer
#20
Katsuhiro Yoshimura, Yusuke Inoue, Kazutaka Mori, Yuji Iwashita, Tomoaki Kahyo, Akikazu Kawase, Masayuki Tanahashi, Hiroshi Ogawa, Naoki Inui, Kazuhito Funai, Kazuya Shinmura, Hiroshi Niwa, Takafumi Suda, Haruhiko Sugimura
Thyroid transcription factor 1 (TTF1) located on chromosome band 14q13.3 is an oncogene and a suppressor gene in non-small cell lung cancer (NSCLC). The prognostic relevance of TTF1 copy number alterations (CNAs) and their association with TTF1 protein expression are poorly understood. Here, we assessed TTF1 CNAs and protein expression using microarrays in a cohort of 636 NSCLC, including 423 adenocarcinoma (ADC) and 171 squamous cell carcinoma (SCC). In addition, fluorescent in situ hybridization and immunohistochemistry were performed...
July 2017: Genes, Chromosomes & Cancer
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