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https://www.readbyqxmd.com/read/29159720/spontaneous-rotation-of-the-monorail-type-guide-extension-support-catheter-during-advancement-of-a-curved-guiding-catheter-the-potential-hazard-of-twisting-with-the-coronary-guidewire
#1
Sho Hashimoto, Akihiko Takahashi, Takeshi Yamada, Yukio Mizuguchi, Norimasa Taniguchi, Tetsuya Hata, Shunsuke Nakajima
The extension support guiding catheter has been used to perform complex percutaneous coronary intervention to increase back-up support for the guiding catheter or to ensure deep intubation for device delivery. However, because of its monorail design, advancement of the stent into the distal extension tubing segment is sometimes problematic. Although this problem is considered due to simple collision of the stent, operators have observed tangling between a monorail extension catheter and coronary guidewire in some patients...
November 20, 2017: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/29157897/arteriopathy-after-transarterial-chemo-lipiodolization-for-hepatocellular-carcinoma
#2
Y Matsui, A Figi, M Horikawa, Y Jahangiri Noudeh, Y Tomozawa, K Hashimoto, J A Kaufman, K Farsad
OBJECTIVES: The purpose of this study was to investigate the incidence of and the risk factors for arteriopathy in hepatic arteries after transarterial chemo-lipiodolization in patients with hepatocellular carcinoma and the subsequent treatment strategy changes due to arteriopathy. PATIENTS AND METHODS: A total of 365 arteries in 167 patients (126 men and 41 women; mean age, 60.4±15.0 [SD] years [range: 18-87 years]) were evaluated for the development of arteriopathy after chemo-lipiodolization with epirubicin- or doxorubicin-Lipiodol(®) emulsion...
November 17, 2017: Diagnostic and Interventional Imaging
https://www.readbyqxmd.com/read/29156782/trends-in-neoadjuvant-chemotherapy-use-and-oncological-outcomes-for-muscle-invasive-bladder-cancer-in-japan-a-multicenter-study
#3
Go Anan, Shingo Hatakeyama, Naoki Fujita, Hiromichi Iwamura, Toshikazu Tanaka, Hayato Yamamoto, Yuki Tobisawa, Tohru Yoneyama, Takahiro Yoneyama, Yasuhiro Hashimoto, Takuya Koie, Hiroyuki Ito, Kazuaki Yoshikawa, Toshiaki Kawaguchi, Makoto Sato, Chikara Ohyama
Objective: Despite benefits of neoadjuvant chemotherapy (NAC), the adoption of guideline recommendations for NAC use in patients with muscle-invasive bladder cancer (MIBC) has been slow. We aimed to evaluate temporal trends in NAC use and oncological outcomes in a representative cohort of patients with MIBC. Methods: We included 532 patients from 4 hospitals who underwent radical cystectomy (RC) for ≥ cT2 MIBC in 1996-2017. We retrospectively evaluated temporal changes in NAC use and progression-free and overall survival...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156139/thermo-sensitive-phase-separation-behavior-of-poly-benzyl-methacrylate-solvate-ionic-liquid-solutions
#4
Yumi Kobayashi, Yuzo Kitazawa, Kei Hashimoto, Takeshi Ueki, Hisashi Kokubo, Masayoshi Watanabe
We report a lower critical solution temperature (LCST) behavior of binary systems consisting of poly(benzyl methacrylate) (PBnMA) and solvate ionic liquids (SILs): equimolar mixtures of triglyme (G3) or tetraglyme (G4) and lithium bis(trifluoromethanesulfonyl)amide (Li[TFSA]). We evaluated the critical temperatures (Tcs) using transmittance measurements. The stability of the glyme-Li+ complex ([Li(G3 or G4)]+) in the presence of PBnMA was confirmed using Raman spectroscopy, pulsed-field gradient spin-echo NMR (PGSE-NMR), and thermogravimetric analysis to demonstrate that the complex was not disrupted...
November 20, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/29155993/lack-of-antidepressant-effects-of-2r-6r-hydroxynorketamine-in-a-rat-learned-helplessness-model-comparison-with-r-ketamine
#5
Yukihiko Shirayama, Kenji Hashimoto
Background: (R)-Ketamine exhibits rapid and sustained antidepressant effects in animal models of depression. It is stereoselectively metabolized to (R)-norketamine, and subsequently to (2R,6R)-hydroxynorketamine (HNK) in the liver. The metabolism of ketamine to HNK was recently demonstrated to be essential for ketamine's antidepressant actions. However, no study has compared the antidepressant effects of these three compounds in animal models of depression. Methods: The effects of a single intraperitoneal injection of (R)-ketamine, (R)-norketamine, and (2R,6R)-HNK in a rat learned helplessness (LH) model were examined...
November 15, 2017: International Journal of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29155989/5-hydroxytryptamine-independent-antidepressant-actions-of-r-ketamine-in-a-chronic-social-defeat-stress-model
#6
Kai Zhang, Chao Dong, Yuko Fujita, Atsuhiro Fujita, Kenji Hashimoto
Background: Previous reports suggest that 5-hydroxytryptamine (5-HT) might play a role in the antidepressant actions of (R,S)-ketamine. However, its role in the antidepressant actions of (R)-ketamine, which is more potent than (S)-ketamine, is unknown. This study was conducted to examine whether 5-HT depletion affects the antidepressant actions of (R)-ketamine in a chronic social defeat stress (CSDS) model. Methods: An inhibitor of 5-HT synthesis, para-chlorophenylalanine methyl ester hydrochloride (PCPA; 300 mg/kg, twice daily for 3 consecutive days), or vehicle was administered to control and CSDS susceptible mice...
November 16, 2017: International Journal of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29155598/total-synthesis-of-neodysiherbaine-a-via-1-3-dipolar-cycloaddition-of-a-chiral-nitrone-template
#7
Toshihiro Hirai, Kohki Shibata, Yohei Niwano, Masao Shiozaki, Yoshimitsu Hashimoto, Nobuyoshi Morita, Shintaro Ban, Osamu Tamura
The total synthesis of neodysiherbaine A was achieved via 1,3-dipolar cycloaddition of a chiral nitrone template with a sugar-derived allyl alcohol in the presence of MgBr2·OEt2. This cycloaddition constructed the C2 and C4 asymmetric centers in a single step. Then reductive cleavage, intramolecular SN2 reaction of the tertiary alcohol, and oxidation of the primary alcohol afforded neodysiherbaine A.
November 20, 2017: Organic Letters
https://www.readbyqxmd.com/read/29153260/diagnostic-criteria-for-patulous-eustachian-tube-a-proposal-by-the-japan-otological-society
#8
Toshimitsu Kobayashi, Masahiro Morita, Satoshi Yoshioka, Kunihiro Mizuta, Shigeto Ohta, Toshiaki Kikuchi, Tatsuya Hayashi, Akihiro Kaneko, Nobumasa Yamaguchi, Sho Hashimoto, Hiromi Kojima, Shingo Murakami, Haruo Takahashi
Patulous Eustachian Tube (PET) is of increasing importance in otology. However, despite the abundance of diseases requiring a differential diagnosis from PET, such as superior semicircular canal dehiscence syndrome, perilymphatic fistula, acute low-tone sensorineural hearing loss, etc., there are currently no established diagnostic criteria for PET. In view of these circumstances, the Japan Otological Society (JOS) Eustachian Tube Committee proposed the diagnostic criteria for Patulous Eustachian Tube in 2012, in order to promote clinical research on PET...
November 15, 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/29151531/repeated-hypoglycemic-episodes-with-postprandial-hyperinsulinemia-after-the-recovery-from-acute-weight-loss-revealed-by-continuous-glucose-monitoring-and-the-oral-glucose-tolerance-test
#9
Seizaburo Masuda, Masanori Murakami, Ryotaro Bouchi, Isao Minami, Koshi Hashimoto, Takanobu Yoshimoto, Yoshihiro Ogawa
We herein report a case of a 20-year-old woman who experienced hypoglycemia in parallel with acute weight loss confirmed by continuous glucose motoring (CGM). When she recovered from the acute weight loss, CGM revealed nocturnal and postprandial hypoglycemia. Six months were required to resolve the hypoglycemia and hyperinsulinemia after the recovery of her weight. Our case suggests that the adaption of insulin secretion to the rapid loss of weight and to the recovery of weight may require a long period of time, leading to the excessive secretion of insulin relative to the glucose level and repeated hypoglycemic episodes with postprandial hyperinsulinemia...
November 20, 2017: Internal Medicine
https://www.readbyqxmd.com/read/29151526/recent-inferior-myocardial-infarction-complicated-with-a-right-ventricular-thrombus-detected-by-three-cardiac-imaging-modalities
#10
Toshiki Kuno, Syohei Imaeda, Kenji Hashimoto, Toshinobu Ryuzaki, Tetsuya Saito, Hiroyuki Yamazaki, Ryota Tabei, Masaki Kodaira, Manabu Hase, Yohei Numasawa
We report the case of a 71-year-old woman diagnosed with recent inferior myocardial infarction complicated with right ventricular infarction and a right ventricular thrombus. Three-dimensional transthoracic echocardiography, contrast-enhanced computed tomography, and cardiac magnetic resonance imaging clearly detected a thrombus. We consider cases with a recent right ventricular infarction to require assessment for thrombus formations in the right ventricle. Fortunately, vigorous anticoagulation therapy resolved the thrombi in both the right ventricle and right coronary artery...
November 20, 2017: Internal Medicine
https://www.readbyqxmd.com/read/29151505/isolated-adrenocorticotropin-deficiency-due-to-nivolumab-induced-hypophysitis-in-a-patient-with-advanced-lung-adenocarcinoma-a-case-report-and-literature-review
#11
Nobumasa Ohara, Kazumasa Ohashi, Toshiya Fujisaki, Chiyumi Oda, Yohei Ikeda, Yuichiro Yoneoka, Takehisa Hashimoto, Go Hasegawa, Kazuo Suzuki, Toshinori Takada
A 63-year-old Japanese woman with advanced lung adenocarcinoma developed isolated adrenocorticotropin deficiency caused by immune checkpoint inhibitor (ICI)-related hypophysitis following 8 months of nivolumab therapy. Prompt corticosteroid replacement therapy effectively relieved her secondary adrenal insufficiency symptoms and allowed her to pursue nivolumab therapy, which had been effective for the control of lung adenocarcinoma. Human leukocyte antigen (HLA) typing revealed the presence of the DRB1*04:05-DQA1*03:03-DQB1*04:01 haplotype, which is associated with susceptibility to autoimmune polyglandular syndrome with pituitary disorder in the Japanese population...
November 20, 2017: Internal Medicine
https://www.readbyqxmd.com/read/29151468/-numerical-and-visual-evaluation-of-compressed-sensing-mri-using-3d-cartesian-sampling
#12
Hiroyuki Shinohara, Takeyuki Hashimoto, Nobuyuki Takeyama, Eriko Tanaka, Takaki Hayashi, Touji Hashimoto
We performed numerical and visual evaluation of compressed sensing MRI (CS-MRI) using 3D Cartesian sampling by numerical simulation. Three brain anatomical ROIs (white matter, gray matter, cerebrospinal fluid) of a T1-weighted image (T1WI), a T2-weighted image (T2WI) and a proton density-weighted image (PDWI) were used for numerical evaluation. Sampling ratio of the Cartesian grid was 30%. Reconstruction was performed by the projection onto convex sets (POCS) method with soft thresholding, subject to data fidelity constraints...
2017: Japanese Journal of Medical Physics
https://www.readbyqxmd.com/read/29151464/-series-basic-exercises-using-excel-4
#13
Takeyuki Hashimoto
No abstract text is available yet for this article.
2017: Japanese Journal of Medical Physics
https://www.readbyqxmd.com/read/29151299/eleven-patients-with-primary-thyroid-lymphoma-a-single-center-experience
#14
Hasan Bostancı, Kürşat Dikmen, Nalan Akyürek, Ahmet Çağrı Büyükkasap, Aydın Yavuz, Mehmet Muhittin Yalçın, Murat Akın
Background/aim: Primary thyroid lymphoma (PTL) is a very rare thyroid malignancy. It should be diagnosed and treated immediately and accurately. Our aim was to evaluate the diagnostic methods and treatment results for patients with PTL.Materials and methods: We retrospectively evaluated the records of 11 patients with PTL from 2009 to 2015, diagnosed at our institute. Age, sex, stage, histopathologic type, presence of Hashimoto's thyroiditis, diagnostic methods, treatment types, and recurrence were examined...
November 13, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/29151270/asct2-defined-by-enzyme-mediated-activation-of-radical-sources-enhances-malignancy-of-gd2-plus-small-cell-lung-cancer
#15
Nobutoshi Esaki, Yuki Ohkawa, Noboru Hashimoto, Yuhsuke Tsuda, Yuhsuke Ohmi, Robiul H Bhuiyan, Norihiro Kotani, Koichi Honke, Atsushi Enomoto, Masahide Takahashi, Keiko Furukawa, Koichi Furukawa
Ganglioside GD2 is specifically expressed in small cell lung cancer (SCLC) cells, leading to enhancement of malignant phenotypes, such as cell proliferation and migration. However, how GD2 promotes malignant phenotypes in SCLC cells is not well known. In this study, to reveal mechanisms by which GD2 increases malignant phenotypes in SCLC cells, we performed enzyme-mediated activation of radical sources combined with mass spectrometry in GD2 positive (+) SCLC cells. Consequently, we identified ASC amino-acid transporter 2 (ASCT2), a major glutamine transporter, which coordinately works with GD2...
November 19, 2017: Cancer Science
https://www.readbyqxmd.com/read/29150681/the-structure-function-relationship-measured-with-optical-coherence-tomography-and-a-microperimeter-with-auto-tracking-the-mp-3-in-patients-with-retinitis-pigmentosa
#16
Yuichi Asahina, Marie Kitano, Yohei Hashimoto, Mieko Yanagisawa, Hiroshi Murata, Tatsuya Inoue, Ryo Obata, Ryo Asaoka
The purpose of the current study was to investigate the structure-function relationship in patients with retinitis pigmentosa (RP) using optical coherence tomography and the MP-3 microperimeter. Visual field (VF) measurements were carried out using MP-3 microperimetry and the Humphrey Field Analyzer (HFA, Carl-Zeiss, CA), 22 eyes of 11 patients with a clinical diagnosis of RP, both with the 10-2 test grid pattern. Optical coherence tomography (OCT, Spectralis, Heidelberg, Germany) was also performed and the ellipsoid zone (EZ) was identified in the OCT image...
November 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29149647/dietary-fish-oil-differentially-ameliorates-high-fructose-diet-induced-hepatic-steatosis-and-hyperlipidemia-in-mice-depending-on-time-of-feeding
#17
Katsutaka Oishi, Tatsuya Konishi, Chiaki Hashimoto, Saori Yamamoto, Yoshinori Takahashi, Yasuhiko Shiina
Chrononutrition is the science of nutrition based on chronobiology. Numerous epidemiological studies have shown that fish oil (FO) reduces the risk of cardiovascular events through various actions such as lowering triglycerides. The present study aimed to determine the time of day when the hypertriglyceridemia-decreasing ability of FO is optimal in mice. A high-fructose diet (HFrD) that induces hyperlipidemia in mice was replaced with the same diet containing 4% FO (HFrD-4% FO) at different times of the day for 2 weeks as described below...
October 12, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/29149465/controlled-sol-gel-transitions-of-a-thermoresponsive-polymer-in-a-photoswitchable-azobenzene-ionic-liquid-as-a-molecular-machine
#18
Masayoshi Watanabe, Caihong Wang, Kei Hashimoto, Ryota Tamate, Hisashi Kokubo
Producing ionic liquids (ILs) that function as molecular machines for macroscopic change is a challenging issue. We report that photoisomerization of an azobenzene IL at the molecular level could evoke a macroscopic response (light-controlled mechanical sol-gel transitions) for ABA triblock copolymer solutions. The A endblocks, poly(2-phenylethyl methacrylate), show a low critical solution temperature in the IL mixture containing azobenzene while the B midblock, poly(methyl methacrylate), is compatible with the mixture...
November 17, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/29147787/a-lower-eicosapentaenoic-acid-arachidonic-acid-ratio-is-associated-with-in-hospital-fatal-arrhythmic-events-in-patients-with-acute-myocardial-infarction-a-j-minuet-substudy
#19
Takuya Hashimoto, Junya Ako, Koichi Nakao, Yukio Ozaki, Kazuo Kimura, Teruo Noguchi, Satoshi Yasuda, Satoru Suwa, Kazuteru Fujimoto, Yasuharu Nakama, Takashi Morita, Wataru Shimizu, Yoshihiko Saito, Atsushi Hirohata, Yasuhiro Morita, Teruo Inoue, Atsunori Okamura, Masaaki Uematsu, Kazuhito Hirata, Kengo Tanabe, Yoshisato Shibata, Mafumi Owa, Kenichi Tsujita, Hiroshi Funayama, Nobuaki Kokubu, Ken Kozuma, Shirou Uemura, Tetsuya Toubaru, Keijirou Saku, Shigeru Ohshima, Michikazu Nakai, Kunihiro Nishimura, Yoshihiro Miyamoto, Hisao Ogawa, Masaharu Ishihara
The ratio of serum eicosapentaenoic acid (EPA) to arachidonic acid (AA) is significantly associated with long-term clinical outcomes in patients with acute myocardial infarction (AMI). However, it has not been conclusively demonstrated that higher serum EPA/AA ratio fares better clinical outcomes in the early phase of AMI. The Japanese registry of acute Myocardial INfarction diagnosed by Universal dEfiniTion (J-MINUET) is a prospective multicenter registry conducted in 28 Japanese medical institutions between July 2012 and March 2014...
November 16, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/29147024/comparison-of-r-ketamine-and-lanicemine-on-depression-like-phenotype-and-abnormal-composition-of-gut-microbiota-in-a-social-defeat-stress-model
#20
Youge Qu, Chun Yang, Qian Ren, Min Ma, Chao Dong, Kenji Hashimoto
Accumulating evidence suggests a key role of the gut-microbiota-brain axis in the antidepressant actions of certain compounds. Ketamine, an N-methyl-D-aspartate receptor (NMDAR) antagonist, showed rapid and sustained antidepressant effects in treatment-resistant depressed patients. In contrast, another NMDAR antagonist, lanicemine, did not exhibit antidepressant effects in such patients. (R)-ketamine, the (R)-enantiomer of ketamine, has rapid-acting and long-lasting antidepressant effects in rodent models of depression...
November 16, 2017: Scientific Reports
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