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https://www.readbyqxmd.com/read/27913792/genetic-engineering-approach-to-develop-next-generation-reagents-for-endotoxin-quantification
#1
Hikaru Mizumura, Norihiko Ogura, Jun Aketagawa, Maki Aizawa, Yuki Kobayashi, Shun-Ichiro Kawabata, Toshio Oda
The bacterial endotoxin test, which uses amebocyte lysate reagents of horseshoe crab origin, is a sensitive, reproducible and simple assay to measure endotoxin concentration. To develop sustainable raw materials for lysate reagents that do not require horseshoe crabs, three recombinant protease zymogens (factor C, derived from mammalian cells; factor B; and the proclotting enzyme derived from insect cells) were prepared using a genetic engineering technique. Recombinant cascade reagents (RCRs) were then prepared to reconstruct the reaction cascade in the amebocyte lysate reagent...
December 1, 2016: Innate Immunity
https://www.readbyqxmd.com/read/27913188/fructose-suppresses-uric-acid-excretion-to-the-intestinal-lumen-as-a-result-of-the-induction-of-oxidative-stress-by-nadph-oxidase-activation
#2
Chihiro Kaneko, Jiro Ogura, Shunichi Sasaki, Keisuke Okamoto, Masaki Kobayashi, Kaori Kuwayama, Katsuya Narumi, Ken Iseki
BACKGROUND: A high intake of fructose increases the risk for hyperuricemia. It has been reported that long-term fructose consumption suppressed renal uric acid excretion and increased serum uric acid level. However, the effect of single administration of fructose on excretion of uric acid has not been clarified. METHODS: We used male Wistar rats, which were orally administered fructose (5g/kg). Those rats were used in each experiment at 12h after administration...
November 29, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27903248/long-term-clinical-course-of-anti-glycyl-trna-synthetase-anti-ej-antibody-related-interstitial-lung-disease-pathologically-proven-by-surgical-lung-biopsy
#3
Hajime Sasano, Eri Hagiwara, Hideya Kitamura, Yasunori Enomoto, Norikazu Matsuo, Tomohisa Baba, Shinichiro Iso, Koji Okudela, Tae Iwasawa, Shinji Sato, Yasuo Suzuki, Tamiko Takemura, Takashi Ogura
BACKGROUND: Anti-glycyl-tRNA synthetase (anti-EJ) antibody is occasionally positive in patients with interstitial lung disease (ILD). We aimed to define the clinical, radiological and pathological features of patients with anti-EJ antibody-positive ILD (EJ-ILD). METHODS: We retrospectively analyzed the medical records of 12 consecutive patients with EJ-ILD who underwent surgical lung biopsy. RESULTS: The median follow-up time was 74 months (range, 17-115 months)...
December 1, 2016: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/27900638/bendamustine-plus-rituximab-for-previously-untreated-patients-with-indolent-b-cell-non-hodgkin-lymphoma-or-mantle-cell-lymphoma-a-multicenter-phase-ii-clinical-trial-in-japan
#4
Michinori Ogura, Kenichi Ishizawa, Dai Maruyama, Naokuni Uike, Kiyoshi Ando, Koji Izutsu, Yasuhito Terui, Yoshitaka Imaizumi, Kunihiro Tsukasaki, Kenshi Suzuki, Tohru Izumi, Kensuke Usuki, Tomohiro Kinoshita, Masafumi Taniwaki, Nobuhiko Uoshima, Junji Suzumiya, Mitsutoshi Kurosawa, Hirokazu Nagai, Toshiki Uchida, Noriko Fukuhara, Ilseung Choi, Ken Ohmachi, Go Yamamoto, Kensei Tobinai
A Phase II, multicenter clinical trial of bendamustine plus rituximab (BR) regimen was conducted in previously untreated patients with high-tumor-burden indolent B-cell non-Hodgkin lymphoma (B-NHL) and previously untreated elderly patients with mantle cell lymphoma (MCL) in Japan. Bendamustine 90 mg/m(2)/day on days 1 and 2, as well as rituximab 375 mg/m(2) on day 1 were administered intravenously up to six cycles. The primary endpoint was the complete response (CR) rate as assessed by the International Workshop Response Criteria (1999)...
November 29, 2016: International Journal of Hematology
https://www.readbyqxmd.com/read/27896571/erratum-to-japanese-phase-ii-study-of-rituximab-maintenance-for-untreated-indolent-b-cell-non-hodgkin-lymphoma-with-high-tumor-burden
#5
Tadahiko Igarashi, Michinori Ogura, Kuniaki Itoh, Masafumi Taniwaki, Kiyoshi Ando, Yoshiaki Kuroda, Kazuhito Yamamoto, Naokuni Uike, Akihiro Tomita, Hirokazu Nagai, Mitsutoshi Kurosawa, Shigeo Mori, Shigeru Nawano, Takashi Terauchi, Yasuo Ohashi, Kensei Tobinai
No abstract text is available yet for this article.
November 28, 2016: International Journal of Hematology
https://www.readbyqxmd.com/read/27895460/preoperative-optical-coherence-tomography-visualization-of-epiretinal-membranes-enhances-surgical-strategies
#6
Norihiro Suzuki, Yoshio Hirano, Miyu Ichida, Taneto Tomiyasu, Yuya Esaki, Tsutomu Yasukawa, Yuichiro Ogura
PURPOSE: The aim of this study was to evaluate the usefulness of preoperative optical coherence tomography (OCT) findings in patients with macular epiretinal membrane (ERM) for the planning of surgical strategy. PATIENTS AND METHODS: One hundred twenty-three eyes of 121 patients (49 men, 72 women; mean age, 66 years) with an idiopathic ERM were enrolled. All patients underwent an ophthalmic examination including indirect ophthalmoscopy and OCT (Cirrus HD-OCT 4000 and/or 5000)...
2016: Clinical Ophthalmology
https://www.readbyqxmd.com/read/27889822/does-the-depth-of-mesorectal-invasion-have-prognostic-significance-in-patients-with-ypt3-lower-rectal-cancer-treated-with-preoperative-chemoradiotherapy
#7
Atsushi Ogura, Takashi Akiyoshi, Noriko Yamamoto, Hiroshi Kawachi, Yuichi Ishikawa, Hisashi Noma, Masato Nagino, Yosuke Fukunaga, Masashi Ueno
PURPOSE: The prognostic significance of the depth of mesorectal invasion (DMI) in patients with ypT3 rectal cancer who undergo preoperative chemoradiotherapy (CRT) is unclear. The purpose of this study was to evaluate the prognostic significance of DMI in ypT3 rectal cancer. METHODS: A total of 168 (y)pT3 patients were evaluated, of whom 93 received preoperative CRT and 75 underwent surgery alone. Patients were subdivided into two groups according to the DMI (T3ab = DMI ≤5 mm and T3cd = DMI >5 mm)...
November 26, 2016: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/27885184/-mechanotransduction-and-mechanical-control-of-gene-expression
#8
Kota Miyasaka, Atsushi Kubo, Toshihiko Ogura
Cells change gene expression when they differentiate into different cell lineages. Cells also change their gene expression profiles to adapt to altering milieus. Even physical forces(for example, forces evoked by muscle contraction or exercise)change gene expression dramatically, although the molecular mechanisms of this physico-genetic link are largely unknown. Here, we summarize several works published recently, trying to highlight the physical force as an essential parameter of gene expression and maintenance of homeostasis...
2016: Clinical Calcium
https://www.readbyqxmd.com/read/27883180/mitochondrial-reactive-oxygen-species-suppress-humoral-immune-response-through-reduction-of-cd19-expression-in-b-cells-in-mice
#9
Masato Ogura, Takeshi Inoue, Junko Yamaki, Miwako K Homma, Tomohiro Kurosaki, Yoshimi Homma
Reactive oxygen species (ROS) are implicated in the modulation of diverse processes including immune responses. To evaluate the effects of metabolic ROS produced by mitochondria on B-cell function and development, we created transgenic (Tg) mice expressing a phosphorylation-defective mutant of succinate dehydrogenase A (SDHA(Y215F) ) in B cells (bSDHA(Y215F) ). Splenic B cells in male, but not female, bSDHA(Y215F) mice produced three times more ROS than those in the control mice, and had decreased production of IgM, IgG1 , and IgG3 , and affinity maturation of IgG1 against T-cell-dependent antigens...
November 24, 2016: European Journal of Immunology
https://www.readbyqxmd.com/read/27881924/rodent-models-of-diabetic-nephropathy-their-utility-and-limitations
#10
REVIEW
Munehiro Kitada, Yoshio Ogura, Daisuke Koya
Diabetic nephropathy is the most common cause of end-stage renal disease. Therefore, novel therapies for the suppression of diabetic nephropathy must be developed. Rodent models are useful for elucidating the pathogenesis of diseases and testing novel therapies, and many type 1 and type 2 diabetic rodent models have been established for the study of diabetes and diabetic complications. Streptozotocin (STZ)-induced diabetic animals are widely used as a model of type 1 diabetes. Akita diabetic mice that have an Ins2+/C96Y mutation and OVE26 mice that overexpress calmodulin in pancreatic β-cells serve as a genetic model of type 1 diabetes...
2016: International Journal of Nephrology and Renovascular Disease
https://www.readbyqxmd.com/read/27877100/striatal-and-tegmental-neurons-code-critical-signals-for-temporal-difference-learning-of-state-value-in-domestic-chicks
#11
Chentao Wen, Yukiko Ogura, Toshiya Matsushima
To ensure survival, animals must update the internal representations of their environment in a trial-and-error fashion. Psychological studies of associative learning and neurophysiological analyses of dopaminergic neurons have suggested that this updating process involves the temporal-difference (TD) method in the basal ganglia network. However, the way in which the component variables of the TD method are implemented at the neuronal level is unclear. To investigate the underlying neural mechanisms, we trained domestic chicks to associate color cues with food rewards...
2016: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/27875796/development-of-extensive-inferior-vena-cava-thrombosis-due-to-the-ligation-of-a-large-mesenteric-caval-shunt-during-liver-transplantation-a-case-report
#12
Hideya Kamei, Yasuharu Onishi, Masatoshi Ishigami, Yoji Ishizu, Kojiro Suzuki, Yasuhiro Ogura
INSTRUCTION: Inferior vena cava (IVC) thrombosis can be a life-threatening complication after liver transplantation (LT). Although this complication is usually related to technical problems associated with vascular anastomosis, we report a case of IVC thrombosis which developed from a ligated large mesenteric-caval shunt. PRESENTATION OF CASE: A 35-year-old man underwent LT from a brain-dead donor for primary sclerosing cholangitis. Enhanced computed tomography (CT) before LT showed a huge collateral vessel of the inferior mesenteric vein (IMV) draining into the infra-renal IVC directly...
November 15, 2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/27864147/host-factor-prpf31-is-involved-in-cccdna-production-in-hbv-replicating-cells
#13
Wataru Kinoshita, Naoki Ogura, Koichi Watashi, Takaji Wakita
Hepatitis B virus (HBV) covalently closed circular DNA (cccDNA) plays a central role in chronic HBV infection and replication, and is an important factor for HBV surface antigen loss indicating the endpoint of HBV treatment. However, there is a known problem that current anti-HBV drugs, including interferons and nucleos(t)ide analogues, reduce HBV replication but have a little or no effect on reducing cccDNA. Therefore, the development of new therapeutic agents is necessary to eradicate cccDNA. In this study, we identified pre-mRNA processing factor 31 (PRPF31) by siRNA screening as a factor associated with cccDNA...
November 15, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27862942/a-novel-xenogeneic-graft-versus-host-disease-model-for-investigating-the-pathological-role-of-human-cd4-or-cd8-t-cells-using-immunodeficient-nog-mice
#14
Ryoji Ito, Ikumi Katano, Kenji Kawai, Mika Yagoto, Takeshi Takahashi, Yuyo Ka, Tomoyuki Ogura, Riichi Takahashi, Mamoru Ito
Graft-versus-host disease (GVHD) is a major complication of allogenic bone marrow transplantation and involves the infiltration of donor CD4+ and/or CD8+ T cells into various organs of the recipient. The pathological role of human CD4+ and CD8+ T cells in GVHD remains controversial. In this study, we established two novel xenogeneic (xeno)-GVHD models. Human CD4+ or CD8+ T cells were purified from peripheral blood and were transplanted into immunodeficient NOD/Shi-scid IL2rg(null) (NOG) mice. Human CD8+ T cells did not induce major GVHD symptoms in conventional NOG mice...
November 15, 2016: American Journal of Transplantation
https://www.readbyqxmd.com/read/27859793/selective-contribution-of-the-telencephalic-arcopallium-to-the-social-facilitation-of-foraging-efforts-in-the-domestic-chick
#15
Qiuhong Xin, Yukiko Ogura, Leo Uno, Toshiya Matsushima
To investigate the neural basis of socio-economic behaviors in birds, we examined the effects of bilateral electrolytic lesions of arcopallium (Arco, the major descending pallial area of the avian telencephalon) and the surrounding nuclei in domestic chicks. We tested foraging effort (running distance) in an I-shaped maze with two food patches that delivered food in a biased manner according to a variable interval schedule. Normally, chicks run back and forth between the patches, and the patch use time matches the respective food delivery rate...
November 12, 2016: European Journal of Neuroscience
https://www.readbyqxmd.com/read/27857072/dormant-cancer-cells-accumulate-high-protoporphyrin-ix-levels-and-are-sensitive-to-5-aminolevulinic-acid-based-photodynamic-therapy
#16
Taku Nakayama, Shimpei Otsuka, Tatsuya Kobayashi, Hodaka Okajima, Kentaro Matsumoto, Yuichiro Hagiya, Keiji Inoue, Taro Shuin, Motowo Nakajima, Tohru Tanaka, Shun-Ichiro Ogura
Photodynamic therapy (PDT) and diagnosis (PDD) using 5-aminolevulinic acid (ALA) to drive the production of an intracellular photosensitizer, protoporphyrin IX (PpIX), are in common clinical use. However, the tendency to accumulate PpIX is not well understood. Patients with cancer can develop recurrent metastatic disease with latency periods. This pause can be explained by cancer dormancy. Here we created uniformly sized PC-3 prostate cancer spheroids using a 3D culture plate (EZSPHERE). We demonstrated that cancer cells exhibited dormancy in a cell density-dependent manner not only in spheroids but also in 2D culture...
November 18, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27852082/intraductal-necrosectomy-for-pancreatic-walled-off-necrosis-using-novel-single-operator-pancreatoscope
#17
Takeshi Ogura, Wataru Takagi, Saori Onda, Tastsushi Sano, Kazuhide Higuchi
No abstract text is available yet for this article.
January 2016: Endoscopy
https://www.readbyqxmd.com/read/27851130/1494-the-key-cytokine-network-associated-with-the-severity-and-prognosis-in-extensive-burn-patients
#18
Hiroshi Matsuura, Hisatake Matsumoto, Akinori Osuka, Hiroshi Ogura, Toshiro Tanaka, Suijin Kang, Takeshi Shimazu
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27850985/1349-dynamic-alterations-of-gut-microbiota-metabolites-and-iga-secretion-in-a-murine-model-of-sepsiss
#19
Mitsunori Ikeda, Kentaro Shimizu, Hiroshi Ogura, Takeshi Shimazu
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27850961/1325-hydrocortisone-therapy-with-car-peptide-protects-the-injured-endothelial-glycocalyx-in-sepsis
#20
Kodai Suzuki, Hideshi Okada, Chihiro Takada, Kazumasa Oda, Takahiro Yoshida, David Mann, Masanobu Komatsu, Shinji Ogura
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
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