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Masashi Kurata, Yuki Murata, Keiko Momma, Intisar Fouad Ali Mursi, Masakazu Takahashi, Yusaku Miyamae, Taiho Kambe, Masaya Nagao, Hiroshi Narita, Yasuyuki Shibuya, Seiji Masuda
Recent findings indicate that mRNA splicing inhibitors can be potential anticancer candidates. We have previously established a screening system which monitors mRNA processing in order to identify mRNA processing inhibitors. Among a number of dietary resources, isoflavone fractions showed an inhibitory effect of mRNA processing. These findings demonstrate that a variety of dietary sources have an impact on mRNA biogenesis.
October 25, 2016: Bioscience, Biotechnology, and Biochemistry
Yanping Cheng, Masahiko Shibuya, Jenn McGregor, Gerard B Conditt, Geng-Hua Yi, Greg L Kaluza, William Gray, Manish Doshi, Prakash Sojitra, Juan F Granada
AIMS: The aim of this study was to evaluate the biological efficacy of a novel lower-dose (2.5 µg/mm2) encapsulated paclitaxel nanocrystal-coated balloon (Nano-PCB) in the familial hypercholesterolaemic swine (FHS) model of iliofemoral in-stent restenosis. METHODS AND RESULTS: Nano-PCB pharmacokinetics were assessed in 20 femoral arteries (domestic swine). Biological efficacy was evaluated in ten FHS: 14 days following bare metal stent implantation each stent segment was randomised to a clinically available PCB (IN...
October 20, 2016: EuroIntervention
Takashi Oide, Kazuhiro Yasufuku, Kiyoshi Shibuya, Ichiro Yoshino, Yukio Nakatani, Kenzo Hiroshima
We report a 38-year-old woman with a left lung tumor presenting as obstructive pneumonia. Bronchoscopic examination revealed a polypoid tumor filling the left main bronchus. The tumor was partially resected by a snaring procedure for diagnostic purposes. Microscopic examination revealed a submucosal tumor located underneath normal bronchial epithelium. The tumor was composed of sheets of uniform oval to cuboidal cells encompassing numerous blood vessels. Immunohistochemically, the tumor cells exhibited smooth muscle markers, but were negative for neuroendocrine markers...
2016: Respiratory Medicine Case Reports
M Ohashi, T Hirano, K Watanabe, K Katsumi, H Shoji, A Sano, H Tashi, I Takahashi, M Wakasugi, Y Shibuya, N Endo
STUDY DESIGN: Retrospective multicenter study. OBJECTIVES: To analyze the predictive factors for postoperative ambulatory recovery in paretic non-ambulatory patients with metastatic spinal cord compression (MSCC). SETTING: Japan. METHODS: Eighty-two consecutive patients (74.4% men; mean age, 66.2 years) who could not walk before surgery due to cervical or thoracic MSCC and underwent posterior decompressive surgery between 2003 and 2014 were included...
October 18, 2016: Spinal Cord
Soichi Takeishi, Akihiro Mori, Miyuka Kawai, Yohei Yoshida, Hiroki Hachiya, Takayuki Yumura, Shun Ito, Takashi Shibuya, Nobutoshi Fushimi, Noritsugu Ohashi, Hiromi Kawai
Objective The aim of this study was to determine whether nocturnal hypoglycemia may be predicted according to morning glucose levels. Methods We retrospectively evaluated 106 patients with type 2 diabetes who underwent continuous glucose monitoring during admission. The pre-breakfast glucose level (Pre-breakfast level), highest postprandial glucose level within 3 hours after breakfast (Highest level), time from the start of breakfast to the highest postprandial glucose level (Highest time), difference between the pre-breakfast and highest postprandial breakfast glucose levels (Increase), area under the glucose curve (≥180 mg/dL) within 3 hours after breakfast (Morning AUC), post-breakfast glucose gradient (Gradient), and the increase-to-pre-breakfast ratio (Increase/Pre-breakfast) were calculated...
2016: Internal Medicine
Marcello Stanzione, Marek Baumann, Frantzeskos Papanikos, Ihsan Dereli, Julian Lange, Angelique Ramlal, Daniel Tränkner, Hiroki Shibuya, Bernard de Massy, Yoshinori Watanabe, Maria Jasin, Scott Keeney, Attila Tóth
DNA double-strand breaks (DSBs) are induced by SPO11 during meiosis to initiate recombination-mediated pairing and synapsis of homologous chromosomes. Germline genome integrity requires spatiotemporal control of DSB formation, which involves the proteinaceous chromosome axis along the core of each meiotic chromosome. In particular, a component of unsynapsed axes, HORMAD1, promotes DSB formation in unsynapsed regions where DSB formation must occur to ensure completion of synapsis. Despite its importance, the underlying mechanism has remained elusive...
October 10, 2016: Nature Cell Biology
Yoichi Seki, Shinobu Nagata, Takayuki Shibuya, Naoki Yoshinaga, Mizue Yokoo, Hanae Ibuki, Noriko Minamitani, Muga Kusunoki, Yasushi Inada, Nobuko Kawasoe, Soichiro Adachi, Kensuke Yoshimura, Michiko Nakazato, Masaomi Iyo, Akiko Nakagawa, Eiji Shimizu
BACKGROUND: In Japan, cognitive behavioral therapy (CBT) for panic disorder (PD) is not well established. Therefore, a feasibility study of the clinical effectiveness and cost-effectiveness of CBT for PD in a Japanese clinical setting is urgently required. This was a pilot uncontrolled trial and the intervention consisted of a 16-week CBT program. The primary outcome was Panic Disorder Severity Scale (PDSS) scores. Quality of life was assessed using the EuroQol's EQ-5D questionnaire. Assessments were conducted at baseline, 8 weeks, and at the end of the study...
October 7, 2016: BMC Research Notes
Hiromichi Katayama, Hiroshi Aoki, Katsuyuki Taguchi, Yuu Sakurada, Tomonori Sato, Masahiro Takahashi, Rie Shibuya, Hiroshi Naganuma, Shigeto Ishidoya
We report a histologically pure stage 1 seminoma with an elevated human chorionic gonadotropin (hCG). A 38 year-old man was referred for the evaluation of the left testicular swelling. He showed an elevated serum hCG level of 25,265 mIU/ml with normal a fetoprotein and lactate dehydrogenase. Imaging showed heterogeneous tumor without any metastatic lesions. We conducted 4 courses of chemotherapy before detecting hCG nadir. The final pathological report showed pure seminoma with syncytiotrophoblastic cells but no choriocarcinoma components...
November 2016: Urology Case Reports
Yuki Sato, Akiko Mii, Yoko Hamazaki, Harumi Fujita, Hirosuke Nakata, Kyoko Masuda, Shingo Nishiyama, Shinsuke Shibuya, Hironori Haga, Osamu Ogawa, Akira Shimizu, Shuh Narumiya, Tsuneyasu Kaisho, Makoto Arita, Masashi Yanagisawa, Masayuki Miyasaka, Kumar Sharma, Nagahiro Minato, Hiroshi Kawamoto, Motoko Yanagita
Acute kidney injury (AKI) is a common clinical condition defined as a rapid decline in kidney function. AKI is a global health burden, estimated to cause 2 million deaths annually worldwide. Unlike AKI in the young, which is reversible, AKI in the elderly often leads to end-stage renal disease, and the mechanism that prevents kidney repair in the elderly is unclear. Here we demonstrate that aged but not young mice developed multiple tertiary lymphoid tissues (TLTs) in the kidney after AKI. TLT size was associated with impaired renal function and increased expression of proinflammatory cytokines and homeostatic chemokines, indicating a possible contribution of TLTs to sustained inflammation after injury...
July 21, 2016: JCI Insight
Keishi Sugino, Yasuhiko Nakamura, Yoko Muramatsu, Yoshinobu Hata, Kazutoshi Shibuya, Sakae Homma
Acute exacerbation (AE) of idiopathic pulmonary fibrosis (IPF) is characterized by severe worsening dyspnea and high mortality. It has been proven that the serum neutrophil elastase (NE) level, in addition to the serum Krebs von den Lungen-6 (KL-6) and surfactant protein-D (SP-D) levels, was elevated in patients with IPF-AE. Glutathione (GSH) is the major antioxidant involved in cell metabolism and survival. It is also known that IPF is characterized by reduced GSH levels in bronchoalveolar lavage fluid and blood...
October 2016: Molecular and Clinical Oncology
Chihiro Kamezaki, Ami Nakashima, Asako Yamada, Sachiko Uenishi, Hiroshi Ishibashi, Natsumi Shibuya, Susumu Hama, Shinzo Hosoi, Eiji Yamashita, Kentaro Kogure
Astaxanthin and vitamin E are both effective antioxidants that are frequently used in cosmetics, as food additives, and in to prevent oxidative damage. A combination of astaxanthin and vitamin E would be expected to show an additive anntioxidative effect. In this study, liposomes co-encapsulating astaxanthin and the vitamin E derivatives α-tocopherol (α-T) or tocotrienols (T3) were prepared, and the antioxidative activity of these liposomes toward singlet oxygen and hydroxyl radical was evaluated in vitro...
September 2016: Journal of Clinical Biochemistry and Nutrition
Yanping Cheng, Pawel Gasior, Masahiko Shibuya, Kamal Ramzipoor, Chang Lee, Edward A Estrada, Daniell Dokko, Jenn C McGregor, Gerard B Conditt, Greg L Kaluza, Juan F Granada
BACKGROUND: Clinically available bioresorbable scaffolds (BRS) rely on polymer crystallinity to achieve mechanical strength resulting in limited overexpansion capabilities and structural integrity when exposed to high-loading conditions. We aimed to evaluate the biomechanical behavior and vascular healing profile of a novel, sirolimus-eluting, high-molecular-weight, amorphous poly-l-lactic acid-based BRS (Amaranth BRS). METHODS AND RESULTS: In vitro biomechanical testing was performed under static and cyclic conditions...
October 2016: Circulation. Cardiovascular Interventions
Kenta Yamada, Koji Yamaguchi, Tomomi Shirakawa, Hirofumi Nakagami, Akira Mine, Kazuya Ishikawa, Masayuki Fujiwara, Mari Narusaka, Yoshihiro Narusaka, Kazuya Ichimura, Yuka Kobayashi, Hidenori Matsui, Yuko Nomura, Mika Nomoto, Yasuomi Tada, Yoichiro Fukao, Tamo Fukamizo, Kenichi Tsuda, Ken Shirasu, Naoto Shibuya, Tsutomu Kawasaki
Perception of microbe-associated molecular patterns by host cell surface pattern recognition receptors (PRRs) triggers the intracellular activation of mitogen-activated protein kinase (MAPK) cascades. However, it is not known how PRRs transmit immune signals to MAPK cascades in plants. Here, we identify a complete phospho-signaling transduction pathway from PRR-mediated pathogen recognition to MAPK activation in plants. We found that the receptor-like cytoplasmic kinase PBL27 connects the chitin receptor complex CERK1-LYK5 and a MAPK cascade...
September 27, 2016: EMBO Journal
H Hanazawa, T Shiinoki, S Takahashi, S Park, K Fujimoto, Y Yuasa, M Koike, Y Tanabe, S Kawamura, K Shibuya
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
Hirotake Okazaki, Akihiro Shirakabe, Nobuaki Kobayashi, Noritake Hata, Takuro Shinada, Masato Matsushita, Yoshiya Yamamoto, Yusaku Shibata, Junsuke Shibuya, Reiko Shiomura, Suguru Nishigoori, Kuniya Asai, Wataru Shimizu
Atherosclerosis induces the elevation of uric acid (UA), and an elevated UA level is well known to lead to a poor prognosis in patients with acute heart failure (AHF). However, the prognostic value of atherosclerotic risk factors in hyperuricemic AHF patients remains to be elucidated. The data from 928 patients who were admitted to the intensive care unit (ICU) at Nippon Medical School Chiba Hokusoh Hospital between January 2001 and December 2014, and whose serum UA levels were measured were screened. A total of 394 AHF patients with hyperuricemia were enrolled in this study...
September 26, 2016: Heart and Vessels
Ryuichiro Arakaki, Toshinari Yamasaki, Toru Kanno, Noboru Shibasaki, Hiromasa Sakamoto, Noriaki Utsunomiya, Takayuki Sumiyoshi, Shinsuke Shibuya, Tatsuaki Tsuruyama, Eijiro Nakamura, Osamu Ogawa, Tomomi Kamba
We previously reported that the pVHL-atypical PKC-JunB pathway contributed to promotion of cell invasiveness and angiogenesis in clear cell renal cell carcinoma (ccRCC), and we detected chemokine (C-C motif) ligand-2 (CCL2) as one of downstream effectors of JunB. CCL2 plays a critical role in tumorigenesis in other types of cancer, but its role in ccRCC remains unclear. In this study, we investigated the roles and therapeutic potential of CCL2 in ccRCC. Immunohistochemical analysis of CCL2 expression for ccRCC specimens showed that upregulation of CCL2 expression correlated with clinical stage, overall survival, and macrophage infiltration...
September 26, 2016: Cancer Medicine
Takashi Murakami, Naoto Sakamoto, Hideaki Ritsuno, Tomoyoshi Shibuya, Taro Osada, Hiroyuki Mitomi, Takashi Yao, Sumio Watanabe
BACKGROUND AND AIMS: Sessile serrated adenoma/polyp (SSA/P) is a colorectal polyp that possesses malignant potential. However, the dysplastic components within a SSA/P can be difficult to detect. This study aimed to clarify the endoscopic characteristics of SSA/P with advanced histology. METHODS: We examined 462 endoscopically or surgically resected lesions that were pathologically diagnosed as SSA/P, including 414 without and 41 with cytological dysplasia, and 7 with invasive carcinoma...
September 20, 2016: Gastrointestinal Endoscopy
Satoshi Shibuya, Satoshi Unenaka, Yukari Ohki
Body ownership and agency are fundamental to self-consciousness. These bodily experiences have been intensively investigated using the rubber hand illusion, wherein participants perceive a fake hand as their own. After presentation of the illusion, the position of the participant's hand then shifts toward the location of the fake hand (proprioceptive drift). However, it remains controversial whether proprioceptive drift is able to provide an objective measurement of body ownership, and whether agency also affects drift...
September 20, 2016: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
Wakako Takabe, Yasuomi Urano, Diep-Khanh Ho Vo, Kimiyuki Shibuya, Masaaki Tanno, Hiroaki Kitagishi, Toyoshi Fujimoto, Noriko Noguchi
24(S)-hydroxycholesterol (24S-OHC), which plays an important role in maintaining brain cholesterol homeostasis, has been shown to possess neurotoxicity. We have previously reported that 24S-OHC esterification by acyl-CoA:cholesterol acyltransferase 1 (ACAT1) and the resulting lipid droplet (LD) formation are responsible for 24S-OHC-induced cell death. In the present study, we investigate the functional roles of 24S-OHC esters and LD formation in 24S-OHC-induced cell death, and we identify four long-chain unsaturated fatty acids (oleic acid, linoleic acid, arachidonic acid, and docosahexaenoic acid) with which 24S-OHC is esterified in human neuroblastoma SH-SY5Y cells treated with 24S-OHC...
September 19, 2016: Journal of Lipid Research
Kazuki Sato, Shin-Ichiro Honda, Akira Shibuya, Kazuko Shibuya
Follicular dendritic cells (FDCs) in lymphoid organs play an important role in the humoral immune response. However, because the isolation of FDCs is difficult due to their very small population size and fragility under mechanical and chemical stresses, the genetic and biochemical characteristics of FDCs remain unclear. Previously, we identified FDCs as ICAM-1(+) cells in the CD45(-) non-hematopoietic cell fraction from naïve mouse spleen after cell separation by means of digestion with a combination of enzymes...
October 2016: Molecular Immunology
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