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https://www.readbyqxmd.com/read/29340889/quantification-of-myocardial-perfusion-defect-size-in-rats-comparison-between-quantitative-perfusion-spect-and-autoradiography
#1
Hiroshi Wakabayashi, Junichi Taki, Anri Inaki, Tomo Hiromasa, Koichi Okuda, Takayuki Shibutani, Kazuhiro Shiba, Seigo Kinuya
PURPOSE: Ultra-high resolution single-photon emission computed tomography (SPECT) system, using multiple pinhole collimators, has been applied to the imaging of small rodents. We aimed to compare the myocardial infarction (MI) area on quantitative perfusion single-photon emission computed tomography (QPS; Cedars-Sinai Medical Center, USA) with that on high-resolution autoradiography in rat model to determine the accuracy of perfusion defect measurement by QPS. PROCEDURES: After thoracotomy, rats (n = 9) had their left coronary arteries occluded and reperfused before injection with 185 MBq [99mTc] methoxyisobutylisonitrile ([99mTc]MIBI) for SPECT and autoradiography...
January 16, 2018: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
https://www.readbyqxmd.com/read/29339978/increase-of-somatic-cell-mutations-in-oxidative-damage-sensitive-drosophila
#2
Ryota Koike, Tomoyo Uchiyama, Sakae Arimoto-Kobayashi, Keinosuke Okamoto, Tomoe Negishi
Background: Oxidative damage is an important genotoxic source for almost all organisms. To efficiently detect mutations induced by oxidative damage, we previously developed a urate-null Drosophila strain. Using this Drosophila strain, we showed the mutagenic activity of environmental cigarette smoke (ECS) and the herbicide paraquat, which are known to produce reactive oxygen species (ROS). In the present study, we examined the mutagenic activities of carcinogenic mutagens that are considered to cause mutations by adduct formation, alkylation, or crosslinking of cellular DNA in the oxidative damage-sensitive Drosophila to evaluate how the oxidative damage induced by these mutagens is involved in causing mutations...
2018: Genes and Environment: the Official Journal of the Japanese Environmental Mutagen Society
https://www.readbyqxmd.com/read/29339431/molecular-insights-into-function-and-competitive-inhibition-of-pseudomonas-aeruginosa-multiple-virulence-factor-regulator
#3
Tomoe Kitao, Francois Lepine, Seda Babloudi, Frederick Walte, Stefan Steinbacher, Klaus Maskos, Michael Blaesse, Michele Negri, Michael Pucci, Bob Zahler, Antonio Felici, Laurence G Rahme
New approaches to antimicrobial drug discovery are urgently needed to combat intractable infections caused by multidrug-resistant (MDR) bacteria. Multiple virulence factor regulator (MvfR or PqsR), a Pseudomonas aeruginosa quorum sensing transcription factor, regulates functions important in both acute and persistent infections. Recently identified non-ligand-based benzamine-benzimidazole (BB) inhibitors of MvfR suppress both acute and persistent P. aeruginosa infections in mice without perturbing bacterial growth...
January 16, 2018: MBio
https://www.readbyqxmd.com/read/29329031/development-of-a-new-ex-vivo-model-for-evaluation-of-endoscopic-submucosal-injection-materials-performance
#4
Ryohei Hirose, Takaaki Nakaya, Yuji Naito, Tomo Daidoji, Hiroaki Yasuda, Hideyuki Konishi, Yoshito Itoh
BACKGROUND AND AIMS: Development of high-performance submucosal injection materials (SIMs) contribute to the advancement of endoscopic therapy for early-stage gastrointestinal neoplasms. This study aimed to develop a new ex vivo model that mimics the human gastrointestinal tract to evaluate the performance (the height and duration of the submucosal elevation) of various SIMs in detail. METHODS: A new ex vivo model that applies a constant tension to the tested specimen (the porcine gastric specimen) was developed...
January 5, 2018: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29316051/safety-and-efficacy-of-sofosbuvir-and-ribavirin-for-genotype-2-hepatitis-c-japanese-patients-with-renal-dysfunction
#5
Takuya Sho, Goki Suda, Atsushi Nagasaka, Yoshiya Yamamoto, Ken Furuya, Kenichi Kumagai, Minoru Uebayashi, Katsumi Terashita, Tomoe Kobayashi, Izumi Tsunematsu, Manabu Onodera, Takashi Meguro, Megumi Kimura, Jun Ito, Machiko Umemura, Takaaki Izumi, Naoki Kawagishi, Masatsugu Ohara, Yuji Ono, Masato Nakai, Mitsuteru Natsuizaka, Kenichi Morikawa, Koji Ogawa, Naoya Sakamoto
BACKGROUND AND AIM: The safety and efficacy of sofosbuvir and ribavirin have not been well clarified in patients with renal dysfunction because clinical trials did not include such patients. We evaluated the safety and efficacy of sofosbuvir and ribavirin for genotype 2 hepatitis C virus (HCV)-infected patients with renal dysfunction. METHODS: The study included genotype 2 HCV-infected patients who received sofosbuvir and ribavirin between July 2014 and May 2017...
January 9, 2018: Hepatology Research: the Official Journal of the Japan Society of Hepatology
https://www.readbyqxmd.com/read/29312685/the-lion-and-the-unicorn-were-fighting-for-the-crown-on-pump-versus-off-pump-coronary-artery-bypass-grafting
#6
EDITORIAL
Hisato Takagi, Shohei Mitta, Tomo Ando
No abstract text is available yet for this article.
December 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29306484/meta-analysis-comparing-patent-foramen-ovale-closure-versus-medical-therapy-to-prevent-recurrent-cryptogenic-stroke
#7
Tomo Ando, Anthony A Holmes, Mohit Pahuja, Arshad Javed, Alenxandros Briasoulis, Tesfaye Telila, Hisato Takagi, Theodore Schreiber, Luis Afonso, Cindy L Grines, Sripal Bangalore
New evidence suggests that closure of a patent foramen ovale (PFO) plus medical therapy (MT; antiplatelet or anticoagulation) is superior to MT alone to prevent recurrent cryptogenic stroke. We performed a meta-analysis of randomized controlled trials that compared PFO closure plus MT with MT alone in patients with cryptogenic stroke. The efficacy end points were recurrent stroke, transient ischemia attack, and death. The safety end points were major bleeding and newly detected atrial fibrillation. Trials were pooled using random effects and fixed effects models...
December 11, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/29299454/message-from-real-world-data-of-transcatheter-versus-surgical-aortic-valve-replacement
#8
EDITORIAL
Tomo Ando, Luis Afonso
No abstract text is available yet for this article.
December 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/29296963/novel-tpo-receptor-agonist-ta-316-contributes-to-platelet-biogenesis-from-human-ips-cells
#9
Ayako Aihara, Tomo Koike, Natsuki Abe, Sou Nakamura, Akira Sawaguchi, Takanori Nakamura, Naoshi Sugimoto, Hiromitsu Nakauchi, Taito Nishino, Koji Eto
Signaling by thrombopoietin (TPO) in complex with its receptor, c-MPL, is critical for hematopoietic stem cell (HSC) homeostasis and platelet generation. Here we show that TA-316, a novel chemically synthesized c-MPL agonist (CMA), is useful for ex vivo platelet generation from human-induced pluripotent stem (iPS) cell-derived immortalized megakaryocyte progenitor cell lines (imMKCLs). Moreover, the generation is clinically applicable, because self-renewal expansion and platelet release is tightly controllable...
February 28, 2017: Blood Advances
https://www.readbyqxmd.com/read/29277754/histone-deacetylase-inhibitors-as-a-novel-targeted-therapy-against-non-small-cell-lung-cancer-where-are-we-now-and-what-should-we-expect
#10
REVIEW
Christos Damaskos, Ioannis Tomos, Nikolaos Garmpis, Anna Karakatsani, Dimitrios Dimitroulis, Anna Garmpi, Eleftherios Spartalis, Christos F Kampolis, Eleni Tsagkari, Angeliki A Loukeri, Georgios-Antonios Margonis, Michael Spartalis, Nikolaos Andreatos, Dimitrios Schizas, Stefania Kokkineli, Efstathios A Antoniou, Afroditi Nonni, Gerasimos Tsourouflis, Konstantinos Markatos, Konstantinos Kontzoglou, Alkiviadis Kostakis, Periklis Tomos
Non-small cell lung cancer constitutes the most common type of lung cancer, accounting for 85-90% of lung cancer, and is a leading cause of cancer-related death. Despite the progress during the past years, poor prognosis remains a challenge and requires further research and development of novel antitumor treatment. Recently, the role of histone deacetylases in gene expression has emerged showing their regulation of the acetylation of histone proteins and other non-histone protein targets and their role in chromatin organization, while their inhibitors, the histone deacetylase inhibitors, have been proposed to have a potential therapeutic role in diverse malignancies, including non-small cell lung cancer...
January 2018: Anticancer Research
https://www.readbyqxmd.com/read/29277688/ability-of-using-different-dry-powder-inhalers-during-copd-exacerbations
#11
Andriana I Papaioannou, Yiolanda Herodotou, Ioannis Tomos, Vasiliki Apollonatou, Galateia Verykokou, Evgenia Papathanasiou, Effrosyni D Manali, Stelios Loukides, Spyros A Papiris
BACKGROUND: Guidelines suggest that patients hospitalized for acute COPD exacerbations (AECOPD) are treated with short acting bronchodilators. Long acting bronchodilators, offer longer symptom relief but since they are usually administered via Dry Powder Inhalers (DPIs) it is considered that during AECOPD patients would not be able to achieve appropriate inspiratory flow (IF) to receive appropriate drug doses. The aim of the present study was to evaluate whether patients admitted to the hospital for AECOPD, are able to achieve the necessary IF using different DPIs...
December 19, 2017: Pulmonary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/29276222/lavender-essential-oil-and-its-main-constituents-inhibit-the-expression-of-tnf-%C3%AE-induced-cell-adhesion-molecules-in-endothelial-cells
#12
Michinori Aoe, Tomoe Ueno-Iio, Misako Shibakura, Ryoko Shinohata, Shinichi Usui, Yujiro Arao, Satoru Ikeda, Nobuaki Miyahara, Mitsune Tanimoto, Mikio Kataoka
Lavender essential oil (Lvn) has anti-inflammatory effects in an ovalbumin-sensitized murine model of asthma, and inhibits inflammatory cell infiltration into the lungs. The anti-inflammatory effects of Lvn on cell adhesion molecules are not clear. Here we evaluated the effects of Lvn and its main constituents, linalyl acetate (LA) and linalool (LO), on the expression of tumor necrosis factor-alpha (TNF-α)-induced cell adhesion molecules in murine brain endothelial bEnd.3 cells and human umbilical vein endothelial cells (HUVECs)...
December 2017: Acta Medica Okayama
https://www.readbyqxmd.com/read/29261750/effect-of-optical-correction-on-subfoveal-choroidal-thickness-in-children-with-anisohypermetropic-amblyopia
#13
Tomo Nishi, Tetsuo Ueda, Yuutaro Mizusawa, Kentaro Semba, Kayo Shinomiya, Yoshinori Mitamura, Taiji Sakamoto, Nahoko Ogata
The purpose of this study was to determine the effect of optical correction on the best-corrected visual acuity (BCVA) and subfoveal choroidal thickness (CT) in the eyes of children with anisohypermetropic amblyopia. Twenty-four anisohypermetropic amblyopic eyes and their fellow eyes of 24 patients and twenty-three eyes of 23 age-matched control children were studied. After one year of optical correction, the BCVA in the anisohypermetropic amblyopic eyes was significantly improved. Before the treatment, the mean subfoveal CT in the amblyopic eyes was 351...
2017: PloS One
https://www.readbyqxmd.com/read/29237993/-eukaryotic-microbiomes-of-membrane-attached-biofilms-in-membrane-bioreactors-analyzed-by-high-throughput-sequencing-and-microscopic-observations
#14
Tomohiro Inaba, Tomoyuki Hori, Yuya Sato, Tomo Aoyagi, Dai Hanajima, Atsushi Ogata, Hiroshi Habe
Limited information is currently available on the contribution of eukaryotes to the reactor performance of membrane bioreactors (MBRs). Using high-throughput Illumina sequencing of 18S rRNA genes and microscopic observations, we investigated eukaryotic microbiomes in membrane-attached biofilms in MBRs treating piggery wastewater. Protozoa preying on bacteria were frequently detected under stable conditions when membrane clogging was suppressed. However, the eukaryotes preying upon protozoa became predominant in biofilms when membrane fouling rapidly progressed...
December 12, 2017: Microbes and Environments
https://www.readbyqxmd.com/read/29235206/sperm-storage-influences-the-potential-for-spontaneous-acrosome-reaction-of-the-sperm-in-the-newt-cynops-pyrrhogaster
#15
Shinnosuke Kon, Tae Sato, Daisuke Endo, Tomoe Takahashi, Akio Takaku, Yuni Nakauchi, Fubito Toyama, Victor B Meyer-Rochow, Eriko Takayama-Watanabe, Akihiko Watanabe
Sperm storage is supposed to influence sperm quality, although the details remain unclear. In the present study, we found that sperm stored in a sperm storage site, the vas deferens of Cynops pyrrhogaster, spontaneously undergo acrosome reaction following incubation in Steinberg's salt solution (ST). Percentages of acrosome-reacted sperm increased time-dependently to about 60% in 24 hr. The concentration of cyclic adenosine monophosphate (cAMP) was elevated after incubating sperm in ST, while dibutylyl cAMP induced an acrosome reaction...
November 20, 2017: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/29234165/short-physical-performance-battery-for-cardiovascular-disease-inpatients-implications-for-critical-factors-and-sarcopenia
#16
Tomohiro Yasuda, Toshiaki Nakajima, Tatsuya Sawaguchi, Naohiro Nozawa, Tomoe Arakawa, Reiko Takahashi, Yuta Mizushima, Satoshi Katayanagi, Kazuhisa Matsumoto, Shigeru Toyoda, Teruo Inoue
We examined the relationship between Short Physical Performance Battery (SPPB) and clinical and laboratory factors and the effect of sarcopenia and sarcopenic obesity (SO) on clinical and laboratory factors for cardiovascular disease (CVD) inpatients. CVD male (n = 318) and female (n = 172) inpatients were recruited. A stepwise multiple-regression analysis was performed to predict total SPPB scores and assess clinical and laboratory factors (physical characteristics, functional and morphological assessments, etc...
December 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29224935/infliximab-for-the-treatment-of-refractory-kawasaki-disease-a-nationwide-survey-in-japan
#17
Hiroshi Masuda, Tohru Kobayashi, Akira Hachiya, Yasutaka Nakashima, Hiroyuki Shimizu, Tomo Nozawa, Yoshihito Ogihara, Shuichi Ito, Shinichi Takatsuki, Nobuyuki Katsumata, Yasuo Suzuki, Satoshi Takenaka, Keiichi Hirono, Tomio Kobayashi, Hiroshi Suzuki, Eisuke Suganuma, Kei Takahashi, Tsutomu Saji
OBJECTIVE: To assess the safety and efficacy of infliximab (IFX) for the treatment of patients with Kawasaki disease (KD). STUDY DESIGN: This was a nationwide survey of 274 Japanese institutions exploring how IFX was used to treat patients with KD. The patients' sex, age, treatment course, pre- and post-IFX therapy blood test results, coronary artery lesions (CALs), and adverse events (AEs) were evaluated. RESULTS: We analyzed 434 patients with KD who received IFX between March 2005 and November 2014...
December 7, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/29223545/the-bowel-function-and-quality-of-life-of-hirschsprung-disease-patients-who-have-reached-18-years-of-age-or-older-the-long-term-outcomes-after-undergoing-the-transabdominal-soave-procedure
#18
Shun Onishi, Kazuhiko Nakame, Tatsuru Kaji, Masato Kawano, Tomoe Moriguchi, Koshiro Sugita, Keisuke Yano, Mioko Nomura, Koji Yamada, Waka Yamada, Ryuta Masuya, Takafumi Kawano, Seiro Machigashira, Motoi Mukai, Satoshi Ieiri
BACKGROUND/PURPOSE: Hirschsprung disease (HD) is considered curable, but the postoperative bowel function is not always satisfactory. In this study, we evaluated the general condition, bowel function, and social performance in adults who were older than 17years of age who had undergone definitive operations in childhood. METHOD: From 1984 to 2016, 110 patients with HD underwent definitive surgery at our institute. Sixty-three patients who had undergone the transabdominal Soave procedure reached 18years of age...
December 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/29223395/a-novel-mouse-model-for-tracking-the-fate-of-cxcr5-expressing-t-cells
#19
Tomo Takebe, Kazuki Sakamoto, Yoshikazu Higami, Yohsuke Harada
The germinal center (GC) reaction, a critical process in the humoral immune response, requires follicular helper T (Tfh) cells. Tfh cells express the master transcription factor Bcl6 and chemokine receptor CXCR5, which enable them to migrate from the T cell zone to B cell follicles and interact with GC B cells. However, CXCR5 is downregulated when Tfh cells become memory cells. Therefore, it is difficult to track Tfh cells continuously in vivo. In this study, we generated a mouse strain, Cxcr5CreERT2R26Tomato, in which the fluorescent protein tdTomato is inducibly expressed in CXCR5+ cells by tamoxifen administration...
January 8, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29201997/cardiac-rehabilitation-in-patients-with-cardiovascular-disease-leads-various-hemodynamic-parameters-obtained-using-simple-non-invasive-tests-to-their-appropriate-levels
#20
Makito Futami, Kanta Fujimi, Takashi Ueda, Takuro Matsuda, Masaomi Fujita, Kouji Kaino, Maaya Sakamoto, Tomoe Horita, Rie Koyoshi, Tadaaki Arimura, Yuhei Shiga, Takashi Kuwano, Ken Kitajima, Keijiro Saku, Shin-Ichiro Miura
We evaluated whether comprehensive cardiac rehabilitation (CR) in patients with cardiovascular disease (CVD) could improve various hemodynamic parameters obtained using simple non-invasive tests. We analyzed 48 CVD patients with (n = 38, CR group) or without (n = 10, non-CR group) a CR program, and prospectively followed them for 12 months. Various parameters were measured at baseline and after 12 months using 3 simple non-invasive tests: blood pressure (BP) and severity of atherosclerosis [arterial velocity pulse index (AVI) and atrial pressure volume index] were determined using PASESA®, an index of total autonomic nerve activity and a coefficient of variation of the R-R interval (CVRR) were determined using eHEART®, and the total peripheral resistance, stroke volume and cardiac index (CI) were determined using nico®...
December 2017: IJC Heart & Vasculature
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