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https://www.readbyqxmd.com/read/28529253/relationship-between-blurring-and-refocus-flip-angle-in-3d-double-inversion-recovery-mri
#1
Tomoyuki Wada, Norio Hayashi, Shunichi Motegi, Hiroyuki Nagase, Kouichi Ujita, Akio Ogura, Toshihiro Ogura, Takehiro Shimada, Yoshito Tsushima
It is important to optimize imaging parameters in 3D-double inversion recovery (DIR) magnetic resonance imaging (MRI) for detecting cortical micro lesions. However, inadequate parameters markedly raise blurring in 3DDIR MRI. The purpose of this study was to evaluate the relationship between the blurring and refocus flip angle (RFA) in 3D-DIR MRI. White matter attenuated inversion recovery (WAIR) images as a test sample were obtained by 1.5T MRI with various RFA settings (30°, 40°, 60°, 100°, 140°, 180°, and variable refocus flip angle (VRFA))...
2017: Nihon Hoshasen Gijutsu Gakkai Zasshi
https://www.readbyqxmd.com/read/28523371/impact-of-electrocardiogram-screening-during-drug-challenge-test-for-the-prediction-of-t-wave-oversensing-by-a-subcutaneous-implantable-cardioverter-defibrillator-in-patients-with-brugada-syndrome
#2
Tsukasa Kamakura, Mitsuru Wada, Kohei Ishibashi, Yuko Y Inoue, Koji Miyamoto, Hideo Okamura, Satoshi Nagase, Takashi Noda, Takeshi Aiba, Satoshi Yasuda, Kengo Kusano
Screening tests conducted at rest may be inadequate for the prediction of the T-wave oversensing (TWOS) in subcutaneous implantable cardioverter defibrillator (S-ICD) candidates with Brugada syndrome (BrS) because of the dynamic nature of electrocardiogram (ECG) morphology. We evaluated the utility of ECG screening during drug challenge (DC) for prediction of TWOS in BrS patients implanted with an S-ICD. The study enrolled 6 consecutive BrS patients implanted with an S-ICD. In addition to baseline ECG screening, pre-implant screening during DC using a sodium channel blocker was performed in all patients...
May 18, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/28511140/different-impacts-of-acylated-and-non-acylated-long-acting-insulin-analogs-on-neural-functions-in-vitro-and-in-vivo
#3
Hiroshi Tsuneki, Hitomi Yoshida, Kosuke Endo, Norihiko Mori, Shuji Hosoh, Masaaki Tsuda, Tsutomu Wada, Toshiyasu Sasaoka
AIMS: Centrally administered insulin improves cognitive functions in patients with Alzheimer's disease; however, it remains unknown whether long-acting insulin analogs exert more pronounced effects than insulin. In the present study, we directly compared the effects of insulin and its analogs on neural functions in vitro and in vivo. METHODS: Cultured rat cerebral cortical neurons were treated with insulin, insulin glargine U100 (Gla), insulin detemir (Det), or insulin degludec (Deg)...
May 4, 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28491718/t-wave-oversensing-during-drug-challenge-test-after-subcutaneous-implantable-cardioverter-defibrillator-implantation-in-a-patient-with-brugada-syndrome
#4
Tsukasa Kamakura, Taiki Sato, Mitsuru Wada, Kohei Ishibashi, Takashi Noda, Kengo Kusano
No abstract text is available yet for this article.
September 2016: HeartRhythm Case Reports
https://www.readbyqxmd.com/read/28474132/what-type-of-food-can-older-adults-masticate-evaluation-of-mastication-performance-using-color-changeable-chewing-gum
#5
Shinichi Wada, Nobuyuki Kawate, Masazumi Mizuma
This study determines if older adults can masticate regular foods via a simple test conducted using a color-changeable chewing gum. Seventy-nine consecutive inpatients of our clinic receiving rehabilitation and general medicine were assessed for eligibility. The inclusion criterion was >65 years. Thirty patients consented to participate. The main outcome variable was the food bolus texture at the swallowing threshold for five regular foods. The main explanatory variable was the a* value of the color-changeable chewing gum after 120 s of chewing (a* represents the degree of color between red and green, and a positive a* value indicates red)...
May 4, 2017: Dysphagia
https://www.readbyqxmd.com/read/28464992/2-nitroanisole-induced-oxidative-dna-damage-in-salmonella-typhimurium-and-in-rat-urinary-bladder-cells
#6
Kunio Wada, Yoshitaka Katoh, Aya Ohnuma-Koyama, Naofumi Takahashi, Masami Yamada, Kyomu Matsumoto
2-Nitroanisole (2-NA) is used in the manufacturing of azo dyes and causes cancer, mainly in the urinary bladder. Previous in vivo genotoxic data seems to be insufficient to explain the mechanism through which 2-NA induces carcinogenesis, and several bladder carcinogens were reported to induce oxidative DNA damage. Thus, we examined the potential induction of oxidative DNA damage by 2-NA using bacterial strain YG3008, a mutMST-deficient derivative of strain TA100. Consequently, strain YG3008, when compared with strain TA100, was found to be more sensitive to 2-NA, indicating oxidative DNA damage in bacterial cells...
April 2017: Mutation Research
https://www.readbyqxmd.com/read/28463039/anti-ss-a-ro-antibody-positivity-as-a-risk-factor-for-relapse-in-patients-with-polymyositis-dermatomyositis
#7
Noriko Tatebe, Ken-Ei Sada, Yosuke Asano, Sonia Zeggar, Sumie Hiramatsu, Yoshia Miyawaki, Keiji Ohashi, Michiko Morishita, Takayuki Katsuyama, Eri Katsuyama, Haruki Watanabe, Mariko Narazaki, Katsue Watanabe, Tomoko Kawabata, Jun Wada
OBJECTIVE: The objective of this study is to elucidate predictors of relapse in patients with polymyositis and dermatomyositis (PM/DM). METHODS: Fifty PM/DM patients who achieved disease stabilization at Okayama University Hospital in 2004-2014 were enrolled retrospectively. Candidate predictors such as demographic factors, clinical symptoms, laboratory data, and treatment status were compared. RESULTS: The mean age of enrolled patients was 58 years; 34 were female...
May 2, 2017: Modern Rheumatology
https://www.readbyqxmd.com/read/28453530/intracellular-signaling-entropy-can-be-a-biomarker-for-predicting-the-development-of-cervical-intraepithelial-neoplasia
#8
Masakazu Sato, Kei Kawana, Katsuyuki Adachi, Asaha Fujimoto, Mitsuyo Yoshida, Hiroe Nakamura, Haruka Nishida, Tomoko Inoue, Ayumi Taguchi, Juri Ogishima, Satoko Eguchi, Aki Yamashita, Kensuke Tomio, Osamu Wada-Hiraike, Katsutoshi Oda, Takeshi Nagamatsu, Yutaka Osuga, Tomoyuki Fujii
While the mortality rates for cervical cancer have been drastically reduced after the introduction of the Pap smear test, it still is one of the leading causes of death in women worldwide. Additionally, studies that appropriately evaluate the risk of developing cervical lesions are needed. Therefore, we investigated whether intracellular signaling entropy, which is measured with microarray data, could be useful for predicting the risks of developing cervical lesions. We used three datasets, GSE63514 (histology), GSE27678 (cytology) and GSE75132 (cytology, a prospective study)...
2017: PloS One
https://www.readbyqxmd.com/read/28440570/mass-spectrometric-characterization-of-the-selective-androgen-receptor-modulator-sarm-yk-11-for-doping-control-purposes
#9
Mario Thevis, Thomas Piper, Josef Dib, Andreas Lagojda, Dirk Kuehne, Lars Packschies, Hans Geyer, Wilhelm Schaenzer
RATIONALE: Selective androgen receptor modulators (SARMs) represent an emerging class of therapeutics targeting inter alia conditions referred to as cachexia and sarcopenia. Due to their anabolic properties, the use of SARMs is prohibited in sports as regulated by the World Anti-Doping Agency (WADA), and doping control laboratories test for these anabolic agents in blood and urine. In order to accomplish and maintain comprehensive test methods, the characterization of new drug candidates is critical for efficient sports drug testing...
April 25, 2017: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/28433263/memory-assessment-in-patients-with-temporal-lobe-epilepsy-to-predict-memory-impairment-after-surgery-a-systematic-review
#10
P Parra-Díaz, N García-Casares
INTRODUCTION: Given that surgical treatment of refractory mesial temporal lobe epilepsy may cause memory impairment, determining which patients are eligible for surgery is essential. However, there is little agreement on which presurgical memory assessment methods are best able to predict memory outcome after surgery and identify those patients with a greater risk of surgery-induced memory decline. OBJECTIVE: We conducted a systematic literature review to determine which presurgical memory assessment methods best predict memory outcome...
April 19, 2017: Neurología: Publicación Oficial de la Sociedad Española de Neurología
https://www.readbyqxmd.com/read/28430819/estimating-optimal-sparseness-of-developmental-gene-networks-using-a-semi-quantitative-model
#11
Natsuhiro Ichinose, Tetsushi Yada, Hiroshi Wada
To estimate gene regulatory networks, it is important that we know the number of connections, or sparseness of the networks. It can be expected that the robustness to perturbations is one of the factors determining the sparseness. We reconstruct a semi-quantitative model of gene networks from gene expression data in embryonic development and detect the optimal sparseness against perturbations. The dense networks are robust to connection-removal perturbation, whereas the sparse networks are robust to misexpression perturbation...
2017: PloS One
https://www.readbyqxmd.com/read/28426527/us-antibiotic-stewardship-and-penicillin-allergy
#12
Kara J Wada, Karen H Calhoun
PURPOSE OF REVIEW: The purpose of this review is to improve otolaryngologists' antibiotic stewardship by detailing current approaches to penicillin allergy. RECENT FINDINGS: Although up to 15% of hospitalized patients in the United States have a penicillin allergy recorded on their charts, fewer than 10% of these have a true penicillin allergy. SUMMARY: Using a combination of a detailed allergy history, skin testing and graded-dose administration, many patients whose charts say 'penicillin-allergic' can safely be treated with penicillin and cross-reacting antibiotics...
June 2017: Current Opinion in Otolaryngology & Head and Neck Surgery
https://www.readbyqxmd.com/read/28416987/importance-of-exercise-testing-shortly-after-subcutaneous-implantable-cardioverter-defibrillator-implantation-in-patients-with-brugada-syndrome-the-first-case-of-associated-inappropriate-shock-in-japan
#13
Kohei Ishibashi, Takashi Noda, Tsukasa Kamakura, Mitsuru Wada, Yuko Inoue, Hideo Okamura, Kengo Kusano
We report the case of a 51-year-old patient with Brugada syndrome (BrS) who experienced inappropriate shock due to T-wave oversensing (TWOS) during exercise when the optimal sensing vector was selected based on the automatic analysis by a subcutaneous implantable cardioverter-defibrillator (S-ICD). After selecting another vector during exercise testing, TWOS did not re-occur. Selection of appropriate sensing vector based on analyses under various conditions, including during exercise after S-ICD implantation, should be considered for patients with BrS...
April 2017: Journal of Arrhythmia
https://www.readbyqxmd.com/read/28403894/antibiotic-resistant-airborne-bacteria-and-their-multidrug-resistance-pattern-at-university-teaching-referral-hospital-in-south-ethiopia
#14
Fithamlak Bisetegen Solomon, Fiseha Wada Wadilo, Amsalu Amache Arota, Yishak Leka Abraham
BACKGROUND: Hospitals provide a reservoir of microorganisms, many of which are multi-resistant to antibiotics. Emergence of multi-drug resistant strains in a hospital environment, particularly in developing countries is an increasing problem to infection treatment. This study aims at assessing antibiotic resistant airborne bacterial isolates. METHODS: A cross-sectional study was conducted at Wolaita Sodo university teaching and referral Hospital. Indoor air samples were collected by using passive air sampling method...
April 12, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28397603/masculinization-related-genes-and-cell-mass-structures-during-early-gonadal-differentiation-in-the-african-clawed-frog-xenopus-laevis
#15
Mikako Wada, Kazuko Fujitani, Kei Tamura, Shuuji Mawaribuchi, Yosuke Kamata, Nobuhiko Takamatsu, Michihiko Ito
The African clawed frog Xenopus laevis has a female heterogametic ZZ/ZW-type sex-determining system. We previously discovered a W-linked female sex-determining gene dm-W that is involved in ovary formation, probably through the up-regulation of the estrogen synthesis genes cyp19a1 and foxl2. We also reported that a unique "mass-in-line structure", which disappears from ZZ gonads during early testicular development, might serve as the basis for ovary differentiation in ZW gonads. However, the molecular mechanisms underlying early masculinization are poorly understood...
April 2017: Zoological Science
https://www.readbyqxmd.com/read/28378453/lmplementation-of-the-prolyl-hydroxylase-inhibitor-roxadustat-fg-4592-and-its-main-metabolites-into-routine-doping-controls
#16
Daniel Eichner, Ryan M Van Wagoner, Mitch Brenner, James Chou, Scott Leigh, Lee R Wright, Lee A Flippin, Michael Martinelli, Oliver Krug, Wilhelm Schänzer, Mario Thevis
The utility of hypoxia-inducible factor (HIF) prolyl hydroxylase inhibitors as therapeutic means for the treatment of patients suffering from anemia has been demonstrated for various different clinical settings. However, besides this intended use, HIF stabilizers can be the subject of misuse in amateur and elite sports due to their erythropoietic properties as recently proven by several cases of adverse analytical findings in doping control testing. Consequently, in order to allow for adequate and comprehensive test methods, knowledge about the drug candidates' metabolism and analytical options enabling appropriate detection windows in sports drug testing samples (i...
April 4, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/28367849/acute-heart-failure-triggered-by-coronary-spasm-with-transient-left-ventricular-dysfunction
#17
Yusuke Adachi, Kenichi Sakakura, Tatsuro Ibe, Nanae Yoshida, Hiroshi Wada, Hideo Fujita, Shin-Ichi Momomura
Coronary spasm is abnormal contraction of an epicardial coronary artery resulting in myocardial ischemia. Coronary spasm induces not only depressed myocardial contractility, but also incomplete myocardial relaxation, which leads to elevated ventricular filling pressure. We herein report the case of a 55-year-old woman who had repeated acute heart failure caused by coronary spasm. Acetylcholine provocation test with simultaneous right heart catheterization was useful for the diagnosis of elevated ventricular filling pressure as well as coronary artery spasm...
April 6, 2017: International Heart Journal
https://www.readbyqxmd.com/read/28353607/specimen-acquisition-training-with-a-new-biosimulator-in-endobronchial-ultrasound-guided-transbronchial-needle-aspiration
#18
Takahiro Nakajima, Taiki Fujiwara, Fumie Saegusa, Terunaga Inage, Yuichi Sakairi, Hironobu Wada, Hidemi Suzuki, Takekazu Iwata, Shigetoshi Yoshida, Yukio Nakatani, Ichiro Yoshino
Training for endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) has focused on the procedure itself; however, the techniques for obtaining adequate sample are also important for achieving a pathological diagnosis as well as for molecular testing. The aim of this study was to evaluate the feasibility and efficacy of a biosimulator for training subjects in adequate sample acquisition during EBUS-TBNA.A total of 19 bronchoscopists voluntarily participated in this study. A biosimulator (ArtiCHEST, HARADA Corporation, Tokyo, Japan) was used for the training...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28292514/similarities-and-differences-between-coronary-heart-disease-and-stroke-in-the-associations-with-cardiovascular-risk-factors-the-japan-collaborative-cohort-study
#19
Masaaki Matsunaga, Hiroshi Yatsuya, Hiroyasu Iso, Kentaro Yamashita, Yuanying Li, Kazumasa Yamagishi, Naohito Tanabe, Yasuhiko Wada, Chaochen Wang, Atsuhiko Ota, Koji Tamakoshi, Akiko Tamakoshi
BACKGROUND AND AIMS: Coronary heart disease (CHD) and stroke have common risk factors, but some of these differ in the magnitude or direction of associations between CHD and stroke. We assessed whether the impact of each risk factor differed between CHD and stroke mortality in Asians. METHODS: In total, 104 910 subjects aged 40-79 years without histories of cancer, CHD and stroke at baseline were followed between 1988 and 2009. Competing-risks analysis was used to test for differences in the associations of each risk factor with two endpoints (CHD and stroke)...
March 6, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28267516/protein-adsorption-of-dialdehyde-cellulose-crosslinked-chitosan-with-high-amino-group-contents
#20
Ung-Jin Kim, Yeong Ro Lee, Tong Ho Kang, Joon Weon Choi, Satoshi Kimura, Masahisa Wada
Crosslinked chitosan was prepared by Schiff base formation between the aldehyde groups of dialdehyde cellulose (DAC) and the amino groups of chitosan and a subsequent reduction. DAC was obtained through periodate oxidation of cellulose and solubilization in hot water at 100°C for 1h. Three grades of DAC-crosslinked chitosan were prepared by adding various amounts DAC. The degrees of crosslinking as determined by amino group content were 3.8, 8.3, and 12.1%, respectively. DAC-crosslinked chitosan showed higher stability in the pH 2-9 range and no cytotoxicity was identified over the course of a 21-day long-term stability test...
May 1, 2017: Carbohydrate Polymers
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