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https://www.readbyqxmd.com/read/28549338/fast-backprojection-based-reconstruction-of-spectral-spatial-epr-images-from-projections-with-the-constant-sweep-of-a-magnetic-field
#1
Denis A Komarov, Hiroshi Hirata
In this paper, we introduce a procedure for the reconstruction of spectral-spatial EPR images using projections acquired with the constant sweep of a magnetic field. The application of a constant field-sweep and a predetermined data sampling rate simplifies the requirements for EPR imaging instrumentation and facilitates the backprojection-based reconstruction of spectral-spatial images. The proposed approach was applied to the reconstruction of a four-dimensional numerical phantom and to actual spectral-spatial EPR measurements...
May 17, 2017: Journal of Magnetic Resonance
https://www.readbyqxmd.com/read/28544534/time-to-event-analysis-of-polatuzumab-vedotin-induced-peripheral-neuropathy-to-assist-in-the-comparison-of-clinical-dosing-regimens
#2
D Lu, W R Gillespie, S Girish, P Agarwal, C Li, J Hirata, Y-W Chu, M Kagedal, L Leon, V Maiya, J Y Jin
Polatuzumab vedotin, an antibody-drug conjugate containing monomethyl auristatin E, was associated with an incidence of grade ≥2 peripheral neuropathy (PN) of 55-72% in patients with indolent non-Hodgkin lymphoma in a phase II study, when dosed 1.8-2.4 mg/kg every 3 weeks until progression or for a maximum of 17 cycles. To quantify the correlation of conjugate exposure and treatment duration with PN risk, a time-to-event model was developed using data from phase I and II studies. The model suggested that PN risk increased with conjugate exposure and treatment cycles, and a trend for increased risk with body weight and albumin concentration...
May 23, 2017: CPT: Pharmacometrics & Systems Pharmacology
https://www.readbyqxmd.com/read/28542232/correction-integrated-multiregional-analysis-proposing-a-new-model-of-colorectal-cancer-evolution
#3
Ryutaro Uchi, Yusuke Takahashi, Atsushi Niida, Teppei Shimamura, Hidenari Hirata, Keishi Sugimachi, Genta Sawada, Takeshi Iwaya, Junji Kurashige, Yoshiaki Shinden, Tomohiro Iguchi, Hidetoshi Eguchi, Kenichi Chiba, Yuichi Shiraishi, Genta Nagae, Kenichi Yoshida, Yasunobu Nagata, Hiroshi Haeno, Hirofumi Yamamoto, Hideshi Ishii, Yuichiro Doki, Hisae Iinuma, Shin Sasaki, Satoshi Nagayama, Kazutaka Yamada, Shinichi Yachida, Mamoru Kato, Tatsuhiro Shibata, Eiji Oki, Hiroshi Saeki, Ken Shirabe, Yoshinao Oda, Yoshihiko Maehara, Shizuo Komune, Masaki Mori, Yutaka Suzuki, Ken Yamamoto, Hiroyuki Aburatani, Seishi Ogawa, Satoru Miyano, Koshi Mimori
[This corrects the article DOI: 10.1371/journal.pgen.1005778.].
May 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28539543/sling-pulmonary-artery-with-bridging-bronchus-and-narrowing-airway-a-case-report
#4
Dongxu Li, Yuan Feng, Yasutaka Hirata, Qi An
We present a case of a 10-month-old girl baby with pulmonary artery sling and bridging bronchus demonstrated using multidetector computed tomography with a three-dimensional volume-rendering display and minimum intensity projections. To the best of our knowledge, this method has been helpful not only in the diagnosis and surgical planning for this rare abnormality but also in the evaluation of prognosis. After pulmonary artery reimplantation, the patient was well and discharged.
May 24, 2017: Annals of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28537531/clinical-features-of-nivolumab-induced-thyroiditis-a-case-series-study
#5
Ichiro Yamauchi, Yoriko Sakane, Yorihide Fukuda, Toshihito Fujii, Daisuke Taura, Masakazu Hirata, Keisho Hirota, Yohei Ueda, Yugo Kanai, Yui Yamashita, Eri Kondo, Masakatsu Sone, Akihiro Yasoda, Nobuya Inagaki
BACKGROUND: The programmed cell death-1 (PD-1) pathway is a novel therapeutic target in immune checkpoint therapy for cancer. It consists of the PD-1 receptor and its two ligands, programmed death-ligand 1 (PD-L1) and programmed death-ligand 2 (PD-L2). Nivolumab is an anti-PD-1 monoclonal antibody approved for malignant melanoma, advanced non-small cell lung cancer, and advanced renal cell carcinoma in Japan. Thyrotoxicosis and hypothyroidism have both been reported in international phase 3 studies and national postmarketing surveillance of nivolumab in Japan...
May 24, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28537001/study-design-of-vesuto-%C3%A2-efficacy-of-tiotropium-olodaterol-on-lung-hyperinflation-exercise-capacity-and-physical-activity-in-japanese-patients-with-chronic-obstructive-pulmonary-disease
#6
Masakazu Ichinose, Yoshiaki Minakata, Takashi Motegi, Jun Ueki, Tetsuo Seki, Tatsuhiko Anzai, Ayako Takizawa, Lars Grönke, Kazuto Hirata
INTRODUCTION: The superiority of tiotropium/olodaterol is demonstrated in improvement of lung function, dyspnea, lung hyperinflation, and quality of life compared with either monotherapy in patients with chronic obstructive pulmonary disease (COPD). Japanese Respiratory Society Guidelines for COPD management include improvement of exercise tolerance and daily physical activity as the treatment goals; however, there is limited evidence in Japanese patients with COPD. METHODS: A protocol is developed for the VESUTO(®) study that investigates the efficacy of tiotropium/olodaterol fixed-dose combination (FDC) compared with tiotropium alone on inspiratory capacity (IC, volume from functional residual capacity to total lung capacity), exercise capacity, and daily physical activity in Japanese patients with COPD...
May 23, 2017: Advances in Therapy
https://www.readbyqxmd.com/read/28536341/-a-case-of-effective-chemoradiotherapy-using-mfolfox6-for-locally-advanced-rectal-cancer
#7
Yoshio Kuga, Shosuke Kitamura, Teruo Mouri, Tomohiro Miwata, Yuzoh Hirata, Yasuyo Ishizaki, Yasutoshi Hashimoto
We report a case of locally advanced rectal cancer, treated effectively with chemotherapy consisting of mFOLFOX6 combined with radiotherapy. A 63-year-old man was admitted to our hospital in March 2012 for diarrhea and anal and perineal pain. Advanced rectal cancer with invasion ofthe right perineum was diagnosed based on computer tomography(CT) findings. Surgery was performed; however, the rectal cancer was unresectable. A sigmoid colostomy was performed, and a central venous port was implanted. In April 2012, the patient was treated with chemotherapy using 3 courses ofmFOLFOX6 and concurrent radiotherapy...
May 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28535857/functional-characterization-of-the-collagen-binding-protein-dip2093-and-its-influence-on-host-pathogen-interaction-and-arthritogenic-potential-of-corynebacterium-diphtheriae
#8
Renata Stavracakis Peixoto, Camila Azevedo Antunes, Liliane Simpson Lourêdo, Vanilda Gonçalves Viana, Cintia Silva Dos Santos, Jemima Fuentes Ribeiro da Silva, Raphael Hirata, Elena Hacker, Ana Luíza Mattos-Guaraldi, Andreas Burkovski
Corynebacterium diphtheriae is typically recognized as the a etiological agent of diphtheria, a toxaemic infection of the respiratory tract; however, both non-toxigenic and toxigenic strains are increasingly isolated from cases of invasive infections. The molecular mechanisms responsible for bacterial colonization and dissemination to host tissues remain only partially understood. In this report, we investigated the role of DIP2093, described as a putative adhesin of the serine-aspartate repeat (Sdr) protein family in host-pathogen interactions of C...
May 23, 2017: Microbiology
https://www.readbyqxmd.com/read/28534191/tgf-%C3%AE-in-inflammatory-bowel-disease-a-key-regulator-of-immune-cells-epithelium-and-the-intestinal-microbiota
#9
REVIEW
Sozaburo Ihara, Yoshihiro Hirata, Kazuhiko Koike
Inflammatory bowel disease (IBD) is defined as chronic intestinal inflammation, and includes ulcerative colitis and Crohn's disease. Multiple factors are involved in the pathogenesis of IBD, and the condition is characterized by aberrant mucosal immune reactions to intestinal microbes in genetically susceptible hosts. Transforming growth factor-β (TGF-β) is an immune-suppressive cytokine produced by many cell types and activated by integrins. Active TGF-β binds to its receptor and regulates mucosal immune reactions through the TGF-β signaling pathway...
May 22, 2017: Journal of Gastroenterology
https://www.readbyqxmd.com/read/28532772/echocardiographic-predictors-for-worsening-of-six-minute-walk-distances-in-patients-with-systemic-sclerosis-scleroderma
#10
Kenya Kusunose, Hirotsugu Yamada, Susumu Nishio, Yukina Hirata, Hiromitsu Seno, Yoshihito Saijo, Takayuki Ise, Takeshi Tobiume, Koji Yamaguchi, Shusuke Yagi, Takeshi Soeki, Tetsuzo Wakatsuki, Masataka Sata
Change in 6-minute walk distance (6MWD) has been used as a clinical marker in pulmonary hypertension. Determinants and worsening of 6MWD remain a matter of debate because nonpulmonary factors have an impact on the 6MWD. We hypothesized that future reduction of 6MWD in patients with systemic sclerosis (SSc) was more closely associated with cardiac dysfunction. We prospectively performed standard clinical and echocardiographic evaluations in SSc patients with the 6-minute walk test at enrollment. Features associated with the 6MWD were sought in a multiple linear regression analysis and compared using standardized β...
April 26, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28532607/three-dimensional-intrafractional-internal-target-motions-in-accelerated-partial-breast-irradiation-using-three-dimensional-conformal-external-beam-radiotherapy
#11
Kimiko Hirata, Michio Yoshimura, Nobutaka Mukumoto, Mitsuhiro Nakamura, Minoru Inoue, Makoto Sasaki, Takahiro Fujimoto, Shinsuke Yano, Manabu Nakata, Takashi Mizowaki, Masahiro Hiraoka
PURPOSE: We evaluated three-dimensional intrafractional target motion, divided into respiratory-induced motion and baseline drift, in accelerated partial breast irradiation (APBI). METHODS: Paired fluoroscopic images were acquired simultaneously using orthogonal kV X-ray imaging systems at pre- and post-treatment for 23 patients who underwent APBI with external beam radiotherapy. The internal target motion was calculated from the surgical clips placed around the tumour cavity...
May 19, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28532573/global-assessments-of-disease-activity-are-age-dependent-determinant-factors-of-clinical-remission-in-rheumatoid-arthritis
#12
Hideki Ito, Takehisa Ogura, Ayako Hirata, Sayaka Takenaka, Kennosuke Mizushina, Yuki Fujisawa, Takaharu Katagiri, Norihide Hayashi, Hideto Kameda
OBJECTIVE: The aim of the study is to assess the factors associated with clinical remission of patients with rheumatoid arthritis (RA) in daily clinical practice. METHODS: This analysis was based on the data of 304 RA patients in our center between May 2014 and March 2015. The following information was included: tender, swollen, and symptomatic joint counts, patient's and physician's global assessments, functional disability, laboratory and radiographic data, and RA treatments received...
April 28, 2017: Seminars in Arthritis and Rheumatism
https://www.readbyqxmd.com/read/28531326/relationship-among-establishment-durations-kin-relatedness-aggressiveness-and-distance-between-populations-of-eight-invasive-argentine-ant-hymenoptera-formicidae-supercolonies-in-japan
#13
K Sato, H Sakamoto, M Hirata, M Kidokoro-Kobayashi, M Ozaki, S Higashi, T Murakami
We investigated kin relatedness and kin-recognition abilities of the Argentine ant, Linepithema humile (Mayr), an invader from North America that has pervaded Japan for 20 yr, using genetic analyses and behavioral bioassays. From these data and interactions among factors, we formulated an eradication and management time-scale pattern diagram. Relatedness within a colony using microsatellite markers was effectively zero, whereas relatedness estimated by multilocus DNA fingerprinting markers was relatively high...
May 22, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28530640/genetic-regulation-of-the-runx-transcription-factor-family-has-antitumor-effects
#14
Ken Morita, Kensho Suzuki, Shintaro Maeda, Akihiko Matsuo, Yoshihide Mitsuda, Chieko Tokushige, Gengo Kashiwazaki, Junichi Taniguchi, Rina Maeda, Mina Noura, Masahiro Hirata, Tatsuki Kataoka, Ayaka Yano, Yoshimi Yamada, Hiroki Kiyose, Mayu Tokumasu, Hidemasa Matsuo, Sunao Tanaka, Yasushi Okuno, Manabu Muto, Kazuhito Naka, Kosei Ito, Toshio Kitamura, Yasufumi Kaneda, Paul P Liu, Toshikazu Bando, Souichi Adachi, Hiroshi Sugiyama, Yasuhiko Kamikubo
Runt-related transcription factor 1 (RUNX1) is generally considered to function as a tumor suppressor in the development of leukemia, but a growing body of evidence suggests that it has pro-oncogenic properties in acute myeloid leukemia (AML). Here we have demonstrated that the antileukemic effect mediated by RUNX1 depletion is highly dependent on a functional p53-mediated cell death pathway. Increased expression of other RUNX family members, including RUNX2 and RUNX3, compensated for the antitumor effect elicited by RUNX1 silencing, and simultaneous attenuation of all RUNX family members as a cluster led to a much stronger antitumor effect relative to suppression of individual RUNX members...
May 22, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28526406/trastuzumab-emtansine-suppresses-the-growth-of-her2-positive-small-cell-lung-cancer-in-preclinical-models
#15
Osamu Morimura, Toshiyuki Minami, Takashi Kijima, Shohei Koyama, Tomoyuki Otsuka, Yuhei Kinehara, Akio Osa, Masayoshi Higashiguchi, Kotaro Miyake, Izumi Nagatomo, Haruhiko Hirata, Kota Iwahori, Takayuki Takimoto, Yoshito Takeda, Hiroshi Kida, Atsushi Kumanogoh
Overcoming chemoresistance is essential for achieving better prognoses in SCLC. Previously, we reported that HER2 is upregulated when HER2-positive SCLC cells acquire chemoresistance. HER2-upregulated cisplatin- or etoposide-resistant SCLC cells were sensitive to trastuzumab-mediated ADCC. However, irinotecan-resistant SCLC cells, such as SBC-3/SN-38, were refractory to trastuzumab despite high HER2 expression. To address this issue, we examined the antitumor efficacy of trastuzumab emtansine (T-DM1) on trastuzumab-resistant HER2-positive SCLC...
May 16, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28526226/experimental-pain-in-the-groin-may-refer-into-the-lower-abdomen-implications-to-clinical-assessments
#16
M K Drew, T S Palsson, R P Hirata, M Izumi, G Lovell, M Welvaert, P Chiarelli, P G Osmotherly, T Graven-Nielsen
OBJECTIVES: To investigate the effects of experimental adductor pain on the pain referral pattern, mechanical sensitivity and muscle activity during common clinical tests. DESIGN: Repeated-measures design. METHODS: In two separate sessions, 15 healthy males received a hypertonic (painful) and isotonic (control) saline injection to either the adductor longus (AL) tendon to produce experimental groin pain or into the rectus femoris (RF) tendon as a painful control...
April 21, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28526076/rectal-sparing-type-of-ulcerative-colitis-predicts-lack-of-response-to-pharmacotherapies
#17
Yuki Horio, Motoi Uchino, Toshihiro Bando, Teruhiro Chohno, Hirofumi Sasaki, Akihiro Hirata, Yoshio Takesue, Hiroki Ikeuchi
BACKGROUND: Ulcerative colitis (UC) is known as an immune disorder of the colon that generally involves the rectum, but an atypical distribution of inflamed mucosa has previously been noted in certain subtypes of UC, such as the rectal-sparing type (RST). As noted in a previous report, patients with the RST may be at elevated risk for disease refractoriness, but the clinical significance of RST remains unknown. METHODS: UC patients who underwent surgery between January 2010 and April 2015 were included...
May 19, 2017: BMC Surgery
https://www.readbyqxmd.com/read/28522873/recombinant-bcg-expressing-ltak63-adjuvant-induces-superior-protection-against-mycobacterium-tuberculosis
#18
Ivan P Nascimento, Dunia Rodriguez, Carina C Santos, Eduardo P Amaral, Henrique K Rofatto, Ana P Junqueira-Kipnis, Eduardo D C Gonçalves, Maria R D'Império-Lima, Mario H Hirata, Celio L Silva, Nathalie Winter, Brigitte Gicquel, Kingston H G Mills, Mariagrazia Pizza, Rino Rappuoli, Luciana C C Leite
In order to develop an improved BCG vaccine against tuberculosis we have taken advantage of the adjuvant properties of a non-toxic derivative of Escherichia coli heat labile enterotoxin (LT), LTAK63. We have constructed rBCG strains expressing LTAK63 at different expression levels. Mice immunized with BCG expressing low levels of LTAK63 (rBCG-LTAK63lo) showed higher Th1 cytokines and IL-17 in the lungs, and when challenged intratracheally with Mycobacterium tuberculosis displayed a 2.0-3.0 log reduction in CFU as compared to wild type BCG...
May 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28522161/effect-of-blue-and-violet-light-on-polymerization-shrinkage-vectors-of-a-cq-tpo-containing-composite
#19
Camila S Sampaio, Pablo J Atria, Frederick A Rueggeberg, Satoshi Yamaguchi, Marcelo Giannini, Paulo G Coelho, Ronaldo Hirata, Regina M Puppin-Rontani
OBJECTIVE: To evaluate the effect of light-curing wavelengths on composite filler particle displacement, and thus to visualize localized polymerization shrinkage in a resin-based composite (RBC) containing camphorquinone (CQ) and Lucirin TPO (TPO). METHODS: Three light-curing units (LCUs) were used to light-cure a RBC containing CQ and TPO: a violet-only, a blue-only, and a dual-wavelength, conventional (Polywave(®), emitting violet and blue wavelengths simultaneously)...
May 15, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/28515409/saturation-recovery-myocardial-t1-mapping-with-a-composite-radiofrequency-pulse-on-a-3t-mr-imaging-system
#20
Kosuke Morita, Seitaro Oda, Daisuke Utsunomiya, Takeshi Nakaura, Takatoshi Matsubara, Makoto Goto, Tomoyuki Okuaki, Hideaki Yuki, Yasunori Nagayama, Masafumi Kidoh, Kenichiro Hirata, Yuij Iyama, Narumi Taguchi, Masahiro Hatemura, Masahiro Hashida, Yasuyuki Yamashita
PURPOSE: To evaluate the effect of a composite radiofrequency (RF) pulse on saturation recovery (SR) myocardial T1 mapping using a 3T magnetic resonance (MR) system. MATERIALS AND METHODS: Phantom and in vivo studies were performed with a clinical 3T MR scanner. Accuracy and reproducibility of the SR T1 mapping using conventional and composite RF pulses were first compared in phantom experiments. An in vivo study was performed of 10 healthy volunteers who were imaged with conventional and composite RF pulse methods twice each...
May 18, 2017: Magnetic Resonance in Medical Sciences: MRMS
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