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Yagi hiroshi

Yohei Funatsu, Sadatomo Tasaka, Takahiro Asami, Ho Namkoong, Hiroshi Fujiwara, Osamu Iketani, Kazuma Yagi, Yoshifumi Kimizuka, Makoto Ishii, Tomoyasu Nishimura, Haruhiko Ogata, Satoshi Iwata, Tomoko Betsuyaku, Naoki Hasegawa
BACKGROUND: Some subtypes of influenza virus, such as H5N1 and H7N9, cause severe viral pneumonia, for which the intraluminal concentration of the anti-influenza agent in the airway is critical. However, the pharmacokinetics of peramivir, the only available injectable neuraminidase inhibitor formulation, in the airway epithelial lining fluid (ELF) remains unclear. In this study, we aimed to determine the time course of peramivir in the pharyngeal ELF, bronchial ELF, and plasma of healthy volunteers using bronchoscopic microsampling technique...
October 3, 2016: Antiviral Therapy
Chisato Takagi, Hiroshi Yagi, Makiko Hieda, Kazuki Tajima, Taizo Hibi, Yuta Abe, Minoru Kitago, Masahiro Shinoda, Osamu Itano, Yuko Kitagawa
BACKGROUND: Induced pluripotent stem cells (iPSCs) are human somatic cells that have been reprogrammed to a pluripotent state. Several methods have been used to generate hepatocyte-like cells from iPSCs. However, these hepatic cells have limited clinical application because of their immature function compared to primary hepatocytes. Mesenchymal stem cells (MSCs) have been reported to inhibit apoptosis of hepatic cells and to improve hepatic regeneration in acute liver injury. Therefore, we expected that MSCs had the potential to positively contribute to the maturation of hepatic cells...
September 7, 2016: European Surgical Research. Europäische Chirurgische Forschung. Recherches Chirurgicales Européennes
Toshinori Takada, Ayako Mikami, Nobutaka Kitamura, Kuniaki Seyama, Yoshikazu Inoue, Katsura Nagai, Masaru Suzuki, Hiroshi Moriyama, Keiichi Akasaka, Ryushi Tazawa, Toyohiro Hirai, Michiaki Mishima, Mie Hayashida, Masaki Hirose, Chikatoshi Sugimoto, Toru Arai, Noboru Hattori, Kentaro Watanabe, Tsutomu Tamada, Hirohisa Yoshizawa, Kohei Akazawa, Takahiro Tanaka, Keita Yagi, Lisa R Young, Francis X McCormack, Koh Nakata
RATIONALE: Sirolimus has been shown in a randomized, controlled clinical trial to stabilize lung function in patients with lymphangioleiomyomatosis (LAM) treated for a 12-month time period; however, the pre-treatment decline in lung function decline after the drug was discontinued, indicating that continued exposure is required to suppress disease progression. OBJECTIVES: To elucidate the durability and tolerability of long-term sirolimus treatment in Asian patients with LAM...
August 11, 2016: Annals of the American Thoracic Society
Ho Namkoong, Kozo Morimoto, Tomoyasu Nishimura, Hiromu Tanaka, Hiroaki Sugiura, Yoshitake Yamada, Atsuko Kurosaki, Takanori Asakura, Shoji Suzuki, Hiroshi Fujiwara, Kazuma Yagi, Makoto Ishii, Sadatomo Tasaka, Tomoko Betsuyaku, Yoshihiko Hoshino, Atsuyuki Kurashima, Naoki Hasegawa
BACKGROUND: Mycobacterium abscessus (M. abscessus) pulmonary disease is a refractory chronic infectious disease. Options for treating M. abscessus pulmonary disease are limited, especially in outpatient settings. Among parenteral antibiotics against M. abscessus, intravenous amikacin (AMK) is expected to be an effective outpatient antimicrobial therapy. This study evaluated the clinical efficacy and safety of intravenous AMK therapy in outpatients with M. abscessus pulmonary disease. METHODS: This retrospective chart review of cases of M...
2016: BMC Infectious Diseases
Shoko Kitade, Ichiro Onoyama, Hiroaki Kobayashi, Hiroshi Yagi, Sachiko Yoshida, Masaya Kato, Ryosuke Tsunematsu, Kazuo Asanoma, Kenzo Sonoda, Norio Wake, Kenichiro Hata, Keiichi I Nakayama, Kiyoko Kato
FBXW7 is a ubiquitin ligase that mediates ubiquitylation of oncoproteins, such as c-Myc, cyclin E, Notch, and c-Jun. FBXW7 is a known tumor-suppressor gene, and mutations in FBXW7 have been reported in various human malignancies. In this study, we examined the sequences of the FBXW7 and p53 genes in 57 ovarian cancer clinical samples. Interestingly, we found no FBXW7 mutations associated with amino acid changes. We also investigated FBXW7 expression levels in 126 epithelial ovarian tumors. FBXW7 expression was negatively correlated with the malignant potential of ovarian tumors...
August 3, 2016: Cancer Science
Katsuya Araki, Naoto Yagi, Rie Nakatani, Hiroshi Sekiguchi, Masatomo So, Hisashi Yagi, Noboru Ohta, Yoshitaka Nagai, Yuji Goto, Hideki Mochizuki
α-synuclein (α-syn) is the main component of Lewy bodies, which are neuropathological hallmarks of patients with Parkinson's disease. As it has been controversial whether human α-syn from erythrocytes exists as a tetramer under physiological conditions, we tried solving this issue by the small-angle X-ray solution scattering method. Under two different conditions (high ionic strength with a Tris buffer and low ionic strength with an ammonium acetate buffer), no evidence was found for the presence of tetramer...
2016: Scientific Reports
Masako Fujiwara, Itiro Ando, Shigeaki Yagi, Manabu Nishizawa, Shiro Oguma, Keisuke Satoh, Hiroshi Sato, Yutaka Imai
Patients with renal failure undergoing hemodialysis (HD) are susceptible to muscle cramps during and after HD. Muscle cramps are defined as the sudden onset of a prolonged involuntary muscle contraction accompanied by severe pain. Through HD, water-soluble vitamins are drawn out with water. Since biotin, a water-soluble vitamin, plays an essential role as one of the coenzymes in producing energy, we have hypothesized that deficiency of biotin may be responsible for HD-associated cramps. We previously reported that biotin administration ameliorated the muscle cramps, despite the elevated plasma biotin levels before HD and biotin administration, as judged by an enzyme-linked immunosorbent assay (ELISA)...
2016: Tohoku Journal of Experimental Medicine
Kenichi Ogata, Hiroshi Takamori, Naoki Umezaki, Taisuke Yagi, Katsuhiro Ogawa, Nobuyuki Ozaki, Hiromitsu Hayashi, Hideyuki Tanaka, Yoshiaki Ikuta, Koichi Doi
Although common side effects of regorafenib include hand-and-foot syndrome and diarrhoea, the incidence of gastrointestinal perforation is reportedly unknown. We describe our experience with the case of a 65-year-old woman treated with regorafenib as a third-line therapy for progressive caecal cancer with multiple hepatic metastases after 4 and 6 courses of systemic mFOLFOX6 + bevacizumab (BV) and FOLFIRI + BV chemotherapy, respectively. The patient used regorafenib for 32 days but visited our hospital with abdominal pain during the second course...
July 20, 2016: Journal of Chemotherapy
Shoji Suzuki, Eriko Morino, Makoto Ishii, Ho Namkoong, Kazuma Yagi, Takanori Asakura, Takahiro Asami, Hiroshi Fujiwara, Yoshifumi Uwamino, Tomoyasu Nishimura, Sadatomo Tasaka, Tomoko Betsuyaku, Jin Takasaki, Satoshi Iwata, Naoki Hasegawa
BACKGROUND: Mycobacterium scrofulaceum is a well-known pathogen associated with cervical lymphadenitis in children. However, pulmonary M. scrofulaceum disease is a rare condition with unknown clinical features. The present study aimed to clarify the clinical features of pulmonary M. scrofulaceum disease described in recent cases and reports. METHODS: We reviewed the medical records of all adult patients with pulmonary M. scrofulaceum disease at Keio University Hospital and the National Center for Global Health and Medicine Center Hospital between 2001 and 2011...
September 2016: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
Hiroshi Morioka, Aki Hirabayashi, Mitsutaka Iguchi, Yuka Tomita, Daizo Kato, Naokazu Sato, Miyuki Hyodo, Naoko Kawamura, Takuya Sadomoto, Kazuya Ichikawa, Takayuki Inagaki, Yoshiaki Kato, Yuichi Kouyama, Yoshinori Ito, Tetsuya Yagi
BACKGROUND: Point prevalence surveys (PPSs) in Japanese hospitals have not yet been reported. The purpose of this pilot PPS study was to evaluate the epidemiology of health care-associated infections (HAIs) and antimicrobial use in a Japanese tertiary university hospital. METHODS: A 1-day, cross-sectional PPS was performed at a Japanese university hospital. Data on demographics, active HAIs, and antimicrobial use of all inpatients were collected using a data collection form...
July 1, 2016: American Journal of Infection Control
Yusuke Katsuki, Hiroshi Yagi, Teru Okitsu, Minoru Kitago, Kazuki Tajima, Yoshie Kadota, Taizo Hibi, Yuta Abe, Masahiro Shinoda, Osamu Itano, Shoji Takeuchi, Yuko Kitagawa
OBJECTIVES: Because therapeutic options for severe diabetes are currently limited, there is a continuing need for new therapeutic strategies, especially in the field of regenerative medicine. Collaborative efforts across the fields of tissue engineering technology and islet biology may be able to create functionally engineered islets capable of restoring endocrine function in patients with insulin-dependent diabetes. METHODS: This engineered scaffold was seeded with isolated primary porcine islets via the pancreatic duct using a multi-step infusion technique...
September 2016: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
Choichiro Ozu, Keisuke Aoki, Ken Nakamura, Yasuto Yagi, Yusuke Muro, Toru Nishiyama, Yuho Kono, Kunihiko Yoshioka, Hiroshi Tsuji, Arafumi Maeshima, Shiro Saito
Salvage radical prostatectomy is one of treatments after radiation therapy to patients with prostate cancer. To date, no case of the salvage robotic assisted radical prostatectomy (RARP) following heavy ion radiotherapy (HIRT) has been published. We report on a 70-year-old man with a history of HIRT for prostate cancer in 2011. For 3 years after. HIRT, his serum PSA levels were permissible range. However, his PSA levels were increased. We had diagnosis localized prostate cancer after HIRT. We had carried out salvage RARP...
July 2016: Urology Case Reports
Shigeo Horinaka, Hiroshi Yagi, Hiromichi Fukushima, Yoshimasa Shibata, Hiroshi Takeshima, Toshihiko Ishimitsu
Aortic pulse wave velocity (PWV) has been accepted as the gold standard for arterial stiffness measurement. However, PWV depends on blood pressure (BP). To eliminate the BP dependency of PWV, the cardio-ankle vascular index (CAVI) was developed. This study aimed to define the relationship between CAVI and aortic atherosclerosis or structure on multidetector computed tomography (MDCT). Patients with (n = 49) or without (n = 49) coronary artery disease were studied. The lumen and vessel diameters and wall thickness were calculated from the cross-sectional area at the pulmonary bifurcation level by 64-slice MDCT...
June 22, 2016: Angiology
Azuma Kanatsuka, Yasunori Sato, Koichi Kawai, Koichi Hirao, Masashi Kobayashi, Atsunori Kashiwagi, Nobuyuki Abe, Keiko Arai, Hiroshi Fujiya, Yoshihide Fukumoto, Fumihiko Dake, Tomohiro Iizumi, Masaaki Ito, Koichi Iwasaki, Akira Kanamori, Sumio Kato, Masakazu Kato, Akira Kawara, Kenichi Kimura, Kazumasa Chikamori, Kotaro Iemitsu, Shigetake Kou, Mikihiko Kudo, Yoshio Kurihara, Gendai Lee, Akira Tsuruoka, Naoki Manda, Kiyokazu Matoba, Hiroshi Hayashi, Masae Minami, Nobuichi Kuribayashi, Kazuhiro Miyazawa, Yasuko Chiba, Takeshi Osonoi, Shin Nakamura, Hideo Sasaki, Katsutoshi Komori, Mariko Oishi, Akira Okada, Fuminobu Okuguchi, Morifumi Yanagisawa, Hidekatsu Sugimoto, Hiromichi Sugiyama, Masahiko Takai, Masato Takaki, Hiroshi Takamura, Hiroshi Takeda, Hiroshi Takeda, Kokichi Tanaka, Takashi Miwa, Osamu Tomonaga, Madoka Taguchi, Katsuya Yamazaki, Takako Wada, Noriharu Yagi, Kuniko Yamaoka, Atsuyoshi Yuhara
AIMS/INTRODUCTION: We carried out an observational cohort study to examine the relationship between the efficacy of oral antidiabetic drugs and clinical features in type 2 diabetics. MATERIALS AND METHODS: We analyzed the CoDiC(®) database of the Japan Diabetes Data Management Study Group across 67 institutions in Japan. In a total of 3,698 drug-naïve patients who were initiated with metformin, dipeptidyl peptidase-4 inhibitor (DPP-4i) or sulfonylurea (SU) from 2007 to 2012, we evaluated body mass index (BMI) and hemoglobin A1c (HbA1c)...
May 2016: Journal of Diabetes Investigation
Bassel G Diebo, Isaac Gammal, Yoon Ha, Seung Hwan Yoon, Jae Won Chang, Byeongwoo Kim, Morio Matsumoto, Yu Yamato, Daisaku Takeuchi, Naobumi Hosogane, Mitsuru Yagi, Hiroshi Taneichi, Frank Schwab, Virginie Lafage, Christopher Ames
STUDY DESIGN: Retrospective review of ASD patients in a multi-ethnic database OBJECTIVE.: To investigate the role of ethnicity on recruitment of compensatory mechanisms for sagittal spinal deformity. SUMMARY OF BACKGROUND DATA: While the impacts of age, gender and pelvic morphology on the ability to compensate for sagittal malalignment have been investigated, the role of ethnicity in compensatory mechanism recruitment is poorly understood. METHODS: Patients from USA (85% Caucasian) > 25 y/o were propensity matched by age, gender, and pelvic incidence with patients from Korea and Japan...
June 17, 2016: Spine
Norihiro Kishida, Sachiko Matsuda, Osamu Itano, Masahiro Shinoda, Minoru Kitago, Hiroshi Yagi, Yuta Abe, Taizo Hibi, Yohei Masugi, Koichi Aiura, Michiie Sakamoto, Yuko Kitagawa
BACKGROUND: The incidence of hepatocellular carcinoma with nonalcoholic steatohepatitis is increasing, and its clinicopathological features are well established. Several animal models of nonalcoholic steatohepatitis have been developed to facilitate its study; however, few fully recapitulate all its clinical features, which include insulin resistance, inflammation, fibrosis, and carcinogenesis. Moreover, these models require a relatively long time to produce hepatocellular carcinoma reliably...
2016: BMC Gastroenterology
Shoji Kawakami, Yoshio Tahara, Teruo Noguchi, Nobuhito Yagi, Yu Kataoka, Yasuhide Asaumi, Michio Nakanishi, Yoichi Goto, Hiroyuki Yokoyama, Hiroshi Nonogi, Hisao Ogawa, Satoshi Yasuda
BACKGROUND: Prehospital ECG improves survival following ST-segment elevation myocardial infarction (STEMI). Although a new International Consensus on Cardiopulmonary Resuscitation and Emergency Cardiovascular Care Science With Treatment Recommendations placed new emphasis on the role of prehospital ECG, this technology is not widely used in Japan. We developed a mobile telemedicine system (MTS) that continuously transmits real-time 12-lead ECG from ambulances in a prehospital setting...
June 24, 2016: Circulation Journal: Official Journal of the Japanese Circulation Society
Norifumi Takeda, Hiroki Yagi, Hironori Hara, Takayuki Fujiwara, Daishi Fujita, Kan Nawata, Ryo Inuzuka, Yuki Taniguchi, Mutsuo Harada, Haruhiro Toko, Hiroshi Akazawa, Issei Komuro
Marfan syndrome (MFS) is an autosomal dominant heritable disorder of connective tissue that affects the cardiovascular, skeletal, ocular, pulmonary, and nervous systems and is usually caused by mutations in the FBN1 gene, which encodes fibrillin-1. MFS is traditionally considered to result from the structural weakness of connective tissue. However, recent investigations on molecular mechanisms indicate that increased transforming growth factor-β (TGF-β) activity plays a crucial role in the pathogenesis of MFS and related disorders, such as Loeys-Dietz syndrome (LDS), which is caused by mutation in TGF-β signaling-related genes...
May 25, 2016: International Heart Journal
Hiroshi Shima, Hiroaki Ozasa, Takahiro Tsuji, Hitomi Ajimizu, Takashi Nomizo, Yoshitaka Yagi, Yuichi Sakamori, Hiroki Nagai, Sachiko Minamiguchi, Young Hak Kim, Michiaki Mishima
Thymic carcinoma is a rare neoplasm with a poor outcome due to its aggressive characteristics. For patients who are not operable, radiation therapy and/or palliative chemotherapy are indicated. However, no optimal chemotherapy regimen has been established. The present study reports the case of a 22-year-old man with advanced lymphoepithelioma-like thymic carcinoma refractory to conventional chemotherapy with carboplatin plus solvent-based paclitaxel (sb-PAC) treatment. The patient was subsequently treated with carboplatin plus nanoparticle albumin-bound paclitaxel (nab-PAC)...
May 2016: Molecular and Clinical Oncology
Hiroshi Inoue, Shinichiro Uchiyama, Hirotsugu Atarashi, Ken Okumura, Yukihiro Koretsune, Masahiro Yasaka, Takeshi Yamashita, Makiko Ohnishi, Nobutaka Yagi, Taku Fukaya
BACKGROUND/AIM: A post-marketing surveillance (PMS) study is being conducted to investigate the safety and effectiveness of the long-term use of dabigatran etexilate (dabigatran) in Japanese patients with nonvalvular atrial fibrillation (NVAF). Results of an interim analysis of this prospective cohort study including patient characteristics and adverse drug reactions (ADRs) collected up to September 17, 2014 are reported here. METHODS: Patients with NVAF who began to receive dabigatran for the first time from December 2011 to November 2013 were enrolled at 1042 study sites in Japan...
April 2016: Journal of Arrhythmia
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