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Takaki Akamine, Gouji Toyokawa, Kenichi Kohashi, Taichi Matsubara, Yuka Kozuma, Naoki Haratake, Shinkichi Takamori, Masakazu Katsura, Kazuki Takada, Fumihiro Shoji, Tatsuro Okamoto, Yoshinao Oda, Yoshihiko Maehara
A tracheal metastasis (TM) from non-pulmonary malignancy is extremely rare, and there are very few reports regarding TM. Here, we report a case of the successful tracheal resection of TM of colorectal cancer. A 36-year-old man underwent a surgical resection for the rectal cancer. Approximately 5 years after the surgical resection of the primary rectal cancer, an isolated TM was identified. The patient was successfully treated with a tracheal resection. In conclusion, the current case suggested that the best treatment of the isolated TM might be a surgical resection...
September 2017: Journal of Thoracic Disease
Gouji Toyokawa, Yuka Kozuma, Taichi Matsubara, Naoki Haratake, Shinkichi Takamori, Takaki Akamine, Kazuki Takada, Masakazu Katsura, Mototsugu Shimokawa, Fumihiro Shoji, Tatsuro Okamoto, Yoshihiko Maehara
Background: The preoperative immune-nutritional status has been shown to predict the postoperative prognosis in various types of cancer; however, the prognostic significance of the controlling nutritional status (CONUT) score in resected lung squamous cell carcinoma (SCC) has yet to be elucidated. Methods: A total of 108 patients with resected lung SCC were analyzed for their clinicopathological factors, including the CONUT score, which can be calculated from the serum albumin, total cholesterol, and total peripheral lymphocyte count...
September 2017: Journal of Thoracic Disease
Taichi Kano, Hiroki Maruyama, Chihiro Homma, Keiji Maruoka
α-Selenoenones could be employed as Z-allyl precursors in the chiral amine-catalyzed asymmetric conjugate addition of aldehydes. The obtained formal allylation product, a Z-olefin having a sulfonate leaving group, was employed as a synthetically useful chiral alkylating agent.
December 8, 2017: Chemical Communications: Chem Comm
Taichi Arishima, Shinji Sasaki, Tomohiro Isobe, Yoshihisa Ikebata, Shinichi Shimbara, Shogo Ikeda, Keisuke Kawashima, Yutaka Suzuki, Manabu Watanabe, Sumio Sugano, Kazunori Mizoshita, Yoshikazu Sugimoto
BACKGROUND: Repeat breeding, which is defined as cattle failure to conceive after three or more inseminations in the absence of clinical abnormalities, is a substantial problem in cattle breeding. To identify maternal genetic variants of repeat breeding in Japanese Black cattle, we selected 29 repeat-breeding heifers that failed to conceive following embryo transfer (ET) and conducted a genome-wide association study (GWAS) using the traits. RESULTS: We found that a single-nucleotide polymorphism (SNP; g...
December 6, 2017: BMC Genetics
Taichi Kawamura, Izumi Sato, Hiroshi Tamura, Yoko M Nakao, Koji Kawakami
AIMS: To investigate the influence of comorbidities on undergoing a diabetic eye examination in patients with newly diagnosed type 2 diabetes mellitus (T2DM). DESIGN: Retrospective cohort study METHODS: This was a retrospective cohort study using data from health insurance claims made between January 2005 and March 2013 in Japan. The primary outcome was implementation of the fundus examination that includes fundus photography, ophthalmoscopy and optical coherence tomography by a doctor within one year of initial drug therapy for Type2 Diabetes Mellitus (T2DM)...
December 5, 2017: Japanese Journal of Ophthalmology
Masahito Hashimoto, Taichi Matsumoto, Miwa Tamura-Nakano, Mami Ozono, Shuhei Hashiguchi, Yasuo Suda
Acetobacter pasteurianus is characterized as a fermenting bacterium of kurozu, which is a common traditional Japanese black vinegar. Recently, we separated acid-resistant and low Toll-like receptor 4 (TLR4)-stimulatory lipopolysaccharides (LPS) from A. pasteurianus. We also showed that their lipid A parts possessed a novel sugar backbone that is responsible for the low TLR4-stimulatory and acid-resistant properties of the LPS. Outer membrane vesicles (OMVs) are nano-sized spherical structures secreted from many gram-negative bacteria...
December 2, 2017: Journal of Bioscience and Bioengineering
Hiroshi Yoshida, Yoshiko Yamashita, Taichi Shimazu, Eric Cosatto, Tomoharu Kiyuna, Hirokazu Taniguchi, Shigeki Sekine, Atsushi Ochiai
Background: An automated image analysis system, e-Pathologist, was developed to improve the quality of colorectal biopsy diagnostics in routine pathology practice. Objective: The aim of the study was to evaluate the classification accuracy of the e-Pathologist image analysis software in the setting of routine pathology practice in two institutions. Materials and methods: In total, 1328 colorectal tissue specimens were consecutively obtained from two hospitals (1077 tissues from Tokyo hospital, and 251 tissues from East hospital) and the stained specimen slides were anonymized and digitized...
October 31, 2017: Oncotarget
Shi-Long Wu, Kazuki Sumida, Koji Miyamoto, Kazuaki Taguchi, Tomoki Yoshikawa, Akio Kimura, Yoshifumi Ueda, Masashi Arita, Masanori Nagao, Satoshi Watauchi, Isao Tanaka, Taichi Okuda
Conventional Rashba spin polarization is caused by the combination of strong spin-orbit interaction and spatial inversion asymmetry. However, Rashba-Dresselhaus-type spin-split states are predicted in the centrosymmetric LaOBiS2 system by recent theory, which stem from the local inversion asymmetry of active BiS2 layer. By performing high-resolution spin- and angle-resolved photoemission spectroscopy, we have investigated the electronic band structure and spin texture of superconductor LaO0.55F0.45BiS2. Here we present direct spectroscopic evidence for the local spin polarization of both the valence band and the conduction band...
December 4, 2017: Nature Communications
Misako Taichi, Shogo Nomura, Ikuhiko Nakase, Rie Imamaki, Yasuhiko Kizuka, Fumi Ota, Naoshi Dohmae, Shinobu Kitazume, Naoyuki Taniguchi, Katsunori Tanaka
This paper reports an entirely unexplored concept of simultaneously recognizing two receptors using high- and low-affinity ligands through ligating them in situ on the target cell surface. This de novo approach is inspired by the pretargeting strategy frequently applied in molecular imaging, and has now evolved as the basis of a new paradigm for visualizing target cells with a high imaging contrast. A distinct advantage of using a labeled low-affinity ligand such as glycan is that the excess labeled ligand can be washed away from the cells, whereas the ligand bound to the cell, even at the milli molar affinity level, can be anchored by a bioorthogonal reaction with a pretargeted high-affinity ligand on the surface...
November 2017: Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
Masaharu Nakajima, Toshinori Totsugawa, Taichi Sakaguchi, Satoshi Yuguchi, Tomohiro Matsuo, Takuya Ujikawa, Tomoyuki Morisawa, Tetsuya Takahashi
[Purpose] This study aimed to compare the amount of physical activity in a minimally invasive cardiac surgery (MICS) group with that in a conventional surgery (median sternotomy) group. [Subjects and Methods] Between November 2010 and December 2011, 39 consecutive patients who underwent elective surgery for valvular disease were prospectively enrolled. The amount of physical activity before and after surgery was measured in 22 cases. The daily in-hospital physical activity level was measured continuously using a triaxial accelerometer...
November 2017: Journal of Physical Therapy Science
Taichi Mizobuchi, Risako Nonaka, Motoki Yoshimura, Katsumasa Abe, Shouji Takahashi, Yoshio Kera, Masaru Goto
Aspartate racemase (AspR) is a pyridoxal 5'-phosphate (PLP)-dependent enzyme that is responsible for D-aspartate biosynthesis in vivo. To the best of our knowledge, this is the first study to report an X-ray crystal structure of a PLP-dependent AspR, which was resolved at 1.90 Å resolution. The AspR derived from the bivalve mollusc Scapharca broughtonii (SbAspR) is a type II PLP-dependent enzyme that is similar to serine racemase (SR) in that SbAspR catalyzes both racemization and dehydration. Structural comparison of SbAspR and SR shows a similar arrangement of the active-site residues and nucleotide-binding site, but a different orientation of the metal-binding site...
December 1, 2017: Acta Crystallographica. Section F, Structural Biology Communications
Masaki Kobayashi, Kohei Yoshimatsu, Taichi Mitsuhashi, Miho Kitamura, Enju Sakai, Ryu Yukawa, Makoto Minohara, Atsushi Fujimori, Koji Horiba, Hiroshi Kumigashira
Controlling quantum critical phenomena in strongly correlated electron systems, which emerge in the neighborhood of a quantum phase transition, is a major challenge in modern condensed matter physics. Quantum critical phenomena are generated from the delicate balance between long-range order and its quantum fluctuation. So far, the nature of quantum phase transitions has been investigated by changing a limited number of external parameters such as pressure and magnetic field. We propose a new approach for investigating quantum criticality by changing the strength of quantum fluctuation that is controlled by the dimensional crossover in metallic quantum well (QW) structures of strongly correlated oxides...
November 30, 2017: Scientific Reports
Jiabin Zhao, Zhe Tian, Tsuyoshi Kadomatsu, Peiyu Xie, Keishi Miyata, Taichi Sugizaki, Motoyoshi Endo, Shunshun Zhu, Haoqiu Fan, Haruki Horiguchi, Jun Morinaga, Kazutoyo Terada, Tatsuya Yoshizawa, Kazuya Yamagata, Yuichi Oike
Skeletal muscle atrophy, or sarcopenia, is commonly observed in older individuals and in those with chronic disease and is associated with decreased quality of life. There is recent medical and broad concern that sarcopenia is rapidly increasing worldwide as populations age. At present, strength training is the only effective intervention for preventing sarcopenia development, but it is not known how this exercise regimen counteracts this condition. Here, we report that expression of the inflammatory mediator angiopoietin-like protein 2 (ANGPTL2) increases in skeletal muscle of aging mice...
November 30, 2017: Journal of Biological Chemistry
Norie Nonobe, Hiroki Kaneko, Yasuki Ito, Kei Takayama, Keiko Kataoka, Taichi Tsunekawa, Toshiyuki Matsuura, Ayana Suzumura, Hideyuki Shimizu, Hiroko Terasaki
PURPOSE: To examine the characteristics of the foveal vascular structure of patients with retinopathy of prematurity (ROP) by optical coherence tomography angiography. METHODS: Ten patients with a history of laser photocoagulation or cryopexy treatment for Stage 3 (Zone ≥ II) ROP and 10 normal subjects (controls) were included. Foveal avascular zone, vessel density, vessel length, and vascular diameter index were measured by optical coherence tomography angiography using the 3 × 3-mm Early Treatment Diabetic Retinopathy Study (ETDRS) sectors...
November 28, 2017: Retina
Yuka Shimizu, Shinsuke Yasuda, Taichi Kimura, Saori Nishio, Michihiro Kono, Kazumasa Ohmura, Sanae Shimamura, Michihito Kono, Yuichiro Fujieda, Masaru Kato, Kenji Oku, Toshiyuki Bohgaki, Yuichiro Fukasawa, Shinya Tanaka, Tatsuya Atsumi
OBJECTIVES: The aim of this study was to clarify the consequences of Mx1, one of the IFN-inducible proteins, in the peripheral blood as well as in renal tissues in patients with systemic lupus erythematosus (SLE). PATIENTS AND METHODS: Mx1 protein concentrations in (PBMCs) from 18 SLE patients mostly in their stable disease status, 11 IgA nephropathy (IgAN) patients, 5 ANCA-associated vasculitis (AAV) patients and 16 healthy controls were measured using enzyme-linked immunosorbent assay (ELISA)...
November 30, 2017: Modern Rheumatology
Hiroki Namikawa, Koichi Yamada, Wataru Shibata, Hiroki Fujimoto, Etsuko Takizawa, Makoto Niki, Kiyotaka Nakaie, Yasutaka Nakamura, Ken-Ichi Oinuma, Mamiko Niki, Yasuhiko Takemoto, Yukihiro Kaneko, Taichi Shuto, Hiroshi Kakeya
Enterococcus faecium has high levels of resistance to multiple antibiotics, and the mortality due to E. faecium bacteremia is high. Accordingly, E. faecium strains with low susceptibility to daptomycin are a concern in clinical practice. This study assessed the predictive factors and prognosis of patients with bacteremia due to E. faecium as well as the antimicrobial susceptibility, particularly to daptomycin, among E. faecium isolates. The medical records of patients admitted to Osaka City University Hospital with E...
2017: Tohoku Journal of Experimental Medicine
Fumihiro Shoji, Taichi Matsubara, Yuka Kozuma, Naoki Haratake, Takaki Akamine, Shinkichi Takamori, Masakazu Katsura, Gouji Toyokawa, Tatsuro Okamoto, Yoshihiko Maehara
BACKGROUND: Although the skeletal muscle in the region of the third lumbar vertebra (L3) is generally assessed in order to judge sarcopenia, not every patient with non-small cell lung cancer (NSCLC) undergoes computed tomography including the L3 region. We hypothesized that immuno-nutritional parameters could predict the existence of sarcopenia in patients with NSCLC. AIM: The aim of this study was to retrospectively investigate the correlation between preoperative sarcopenia and immuno-nutritional parameters in patients with early-stage NSCLC...
December 2017: Anticancer Research
Taichi Matsubara, Gouji Toyokawa, Yuichi Yamada, Kazuki Nabeshima, Naoki Haratake, Yuka Kozuma, Takaki Akamine, Shinkichi Takamori, Fumihiro Shoji, Tatsuro Okamoto, Yoshihiko Maehara
BACKGROUND: Malignant mesothelioma (MM) is a well-known malignant tumor that occurs in the pleura and is histopathologically classified into three subtypes. Lymphohistiocytoid mesothelioma (LHM) is considered a variant of epithelioid MM, and few cases have been reported. First case of LHM was reported by Henderson et al. in 1988. It is difficult to precisely diagnose LHM, and it is often misdiagnosed as reactive mesothelial cell proliferation. CASE REPORT: An 82-year-old man, with the smoking history of nine pack-years, was referred to our Department due to an abnormal shadow and pleural effusion in the left lung field on the chest X-ray imaging...
December 2017: Anticancer Research
Taichi Nakamura, Katsunori Suzuki, Makoto Yamashita
Aluminabenzene-rhodium and -iridium complexes were synthesized, in which the aluminum atom played as a proximal Lewis acidic site. Based on their structural analysis, aluminabenzene ligand could coordinate to Rh and Ir as a η5-pentadienyl ligand. The Lewis acidic character of aluminum atom in aluminabenzene ligand was confirmed by a treatment with 4-dimethylaminopyridine (DMAP) to form the corresponding Lewis acid-base complexes. In addition, the α-selective C-H borylation of triethylamine with the aluminabenzene-ligated iridium catalyst was demonstrated...
November 29, 2017: Journal of the American Chemical Society
Taichi Nakamura, Katsunori Suzuki, Makoto Yamashita
An anionic indabenzene was synthesized via the transmetallation of an aluminacyclohexadiene with bulky silyl substituents, and fully characterized using multinuclear NMR spectroscopy and X-ray crystallography. The observed structural features are consistent with the formal criteria of aromaticity. Additionally, the results of DFT calculations suggested contributions from an ambiphilic resonance structure, similar to the corresponding aluminum and gallium derivatives.
November 29, 2017: Chemical Communications: Chem Comm
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